Monday, April 30, 2012

Antiphospholipid Syndrome Medications


Definition of Antiphospholipid Syndrome: Antiphospholipid syndrome is a thrombophilic state characterized by recurrent arterial and venous thrombosis, recurrent pregnancy loss, and the presence of circulating antiphospholipid antibodies.

Drugs associated with Antiphospholipid Syndrome

The following drugs and medications are in some way related to, or used in the treatment of Antiphospholipid Syndrome. This service should be used as a supplement to, and NOT a substitute for, the expertise, skill, knowledge and judgment of healthcare practitioners.

Learn more about Antiphospholipid Syndrome





Drug List:

cidofovir Intravenous


sye-DOF-oh-vir


Intravenous route(Solution)

Acute renal failure resulting in dialysis and/or contributing to death has been reported. Use intravenous prehydration with normal saline and administration of probenecid with each cidofovir infusion to reduce nephrotoxicity. Monitor renal function within 48 hours prior to each dose and adjust dose as appropriate. Cidofovir is contraindicated in patients who are receiving other nephrotoxic agents. Neutropenia has been observed; monitor neutrophil counts during therapy. Cidofovir was carcinogenic, teratogenic, and caused hypospermia in animal studies .



Commonly used brand name(s)

In the U.S.


  • Vistide

Available Dosage Forms:


  • Solution

Therapeutic Class: Antiviral


Chemical Class: Cytosine Nucleoside Analog


Uses For cidofovir


Cidofovir is an antiviral. It is used to treat infections caused by viruses.


Cidofovir is used to treat the symptoms of cytomegalovirus (CMV) infection of the eyes (CMV retinitis) in patients with acquired immune deficiency syndrome (AIDS). Cidofovir will not cure this eye infection, but it may help to keep the symptoms from becoming worse.


cidofovir is available only with your doctor's prescription.


Before Using cidofovir


In deciding to use a medicine, the risks of taking the medicine must be weighed against the good it will do. This is a decision you and your doctor will make. For cidofovir, the following should be considered:


Allergies


Tell your doctor if you have ever had any unusual or allergic reaction to cidofovir or any other medicines. Also tell your health care professional if you have any other types of allergies, such as to foods, dyes, preservatives, or animals. For non-prescription products, read the label or package ingredients carefully.


Pediatric


Cidofovir can cause serious side effects, including possible cancer and trouble in having children later. Therefore, it is especially important that you discuss with the child's doctor the good that cidofovir may do as well as the risks of using it.


Geriatric


Many medicines have not been studied specifically in older people. Therefore, it may not be known whether they work exactly the same way they do in younger adults or if they cause different side effects or problems in older people. There is no specific information comparing use of cidofovir in the elderly with use in other age groups.


Pregnancy








Pregnancy CategoryExplanation
All TrimestersCAnimal studies have shown an adverse effect and there are no adequate studies in pregnant women OR no animal studies have been conducted and there are no adequate studies in pregnant women.

Breast Feeding


There are no adequate studies in women for determining infant risk when using this medication during breastfeeding. Weigh the potential benefits against the potential risks before taking this medication while breastfeeding.


Interactions with Medicines


Although certain medicines should not be used together at all, in other cases two different medicines may be used together even if an interaction might occur. In these cases, your doctor may want to change the dose, or other precautions may be necessary. When you are taking cidofovir, it is especially important that your healthcare professional know if you are taking any of the medicines listed below. The following interactions have been selected on the basis of their potential significance and are not necessarily all-inclusive.


Using cidofovir with any of the following medicines is usually not recommended, but may be required in some cases. If both medicines are prescribed together, your doctor may change the dose or how often you use one or both of the medicines.


  • Amikacin

  • Dibekacin

  • Foscarnet

  • Framycetin

  • Gentamicin

  • Kanamycin

  • Neomycin

  • Netilmicin

  • Pentamidine

  • Streptomycin

  • Tobramycin

Interactions with Food/Tobacco/Alcohol


Certain medicines should not be used at or around the time of eating food or eating certain types of food since interactions may occur. Using alcohol or tobacco with certain medicines may also cause interactions to occur. Discuss with your healthcare professional the use of your medicine with food, alcohol, or tobacco.


Other Medical Problems


The presence of other medical problems may affect the use of cidofovir. Make sure you tell your doctor if you have any other medical problems, especially:


  • Kidney disease—Cidofovir can cause harmful effects on the kidney

Proper Use of cidofovir


To get the best results, cidofovir must be given for the full time of treatment. Also, cidofovir works best when there is a constant amount in the blood. To help keep the amount constant, cidofovir must be given on a regular schedule.


Dosing


The dose of cidofovir will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of cidofovir. If your dose is different, do not change it unless your doctor tells you to do so.


The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.


  • For injection dosage form:
    • For treatment of cytomegalovirus (CMV) retinitis:
      • Adults—Dose is based on body weight and must be determined by your doctor. At first, 5 milligrams (mg) per kilogram (kg) (2.3 mg per pound) of body weight is injected slowly into a vein once a week for two weeks in a row. Then the dose is reduced to 5 mg per kg (2.3 mg per pound) of body weight injected slowly into a vein once every two weeks. Probenecid is taken along with each dose of cidofovir; follow your doctor's instructions for how much and when to take probenecid.

      • Children—Use and dose must be determined by your doctor.



Precautions While Using cidofovir


It is very important that your doctor check you at regular visits for any blood problems that may be caused by cidofovir.


It is very important that your ophthalmologist (eye doctor) check your eyes at regular visits since it is still possible that you may have some loss of eyesight during cidofovir treatment.


cidofovir Side Effects


Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.


Medicines like cidofovir can sometimes cause serious side effects such as blood problems and kidney problems; these are described below. Cidofovir has also been found to cause cancer in animals, and there is a chance it could cause cancer in humans as well. Discuss these possible side effects with your doctor.


Check with your doctor immediately if any of the following side effects occur:


More common
  • Fever, chills, or sore throat

Check with your doctor as soon as possible if any of the following side effects occur:


More common
  • Decreased urination

  • increased thirst and urination

Rare
  • Decreased vision or any change in vision

Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:


More common
  • Diarrhea

  • headache

  • loss of appetite

  • nausea

  • vomiting

Less common
  • Generalized weakness

  • loss of strength

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.


Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

See also: cidofovir Intravenous side effects (in more detail)



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More cidofovir Intravenous resources


  • Cidofovir Intravenous Side Effects (in more detail)
  • Cidofovir Intravenous Use in Pregnancy & Breastfeeding
  • Cidofovir Intravenous Drug Interactions
  • Cidofovir Intravenous Support Group
  • 0 Reviews for Cidofovir Intravenous - Add your own review/rating


Compare cidofovir Intravenous with other medications


  • CMV Retinitis
  • Smallpox Vaccine Reaction

Monday, April 23, 2012

Vitamin D Ergocalciferol




Generic Name: ergocalciferol

Dosage Form: capsule
Vitamin D (Ergocalciferol Capsules, USP)

1.25 mg (50,000 USP Units)

Each capsule contains Vitamin D (Ergocalciferol) 1.25 mg equivalent to 50,000 USP Units.



Vitamin D Ergocalciferol Description


Ergocalciferol Capsules, USP are a synthetic calcium regulator for oral administration.


Ergocalciferol is a white, colorless crystal, insoluble in water, soluble in organic solvents, and slightly soluble in vegetable oils. It is affected by air and by light. Ergosterol or provitamin D2 is found in plants and yeast and has no antirachitic activity.


There are more than 10 substances belonging to a group of steroid compounds, classified as having vitamin D or antirachitic activity.


One USP unit of vitamin D2 is equivalent to one International Unit (IU), and 1 mcg of vitamin D2 is equal to 40 USP Units.


Each capsule contains Vitamin D (Ergocalciferol) 1.25 mg equivalent to 50,000 USP Units in an edible vegetable oil.


Ergocalciferol, also called vitamin D2, is 9,10-secoergosta-5,7,10(19), 22-tetraen-3-ol, (3β,5Z,7E,22E)-; (C28H44O) with a molecular weight of 396.65, and has the following structural formula:



Inactive Ingredients: 2-Ethoxyethanol, FD&C Blue #1, FD&C Yellow #5, Gelatin, Glycerin, Lecithin, Medium chain triglyceride, Purified water, Shellac glaze (modified) IN SD-45, Simethicone, Soybean oil and Titanium dioxide.



Vitamin D Ergocalciferol - Clinical Pharmacology


The in vivo synthesis of the major biologically active metabolites of vitamin D occurs in two steps. The first hydroxylation of ergocalciferol takes place in the liver (to 25-hydroxyvitamin D) and the second in the kidneys (to 1,25-dihydroxyvitamin D). Vitamin D metabolites promote the active absorption of calcium and phosphorus by the small intestine, thus elevating serum calcium and phosphate levels sufficiently to permit bone mineralization. Vitamin D metabolites also mobilize calcium and phosphate from bone and probably increase the reabsorption of calcium and perhaps also of phosphate by the renal tubules.


There is a time lag of 10 to 24 hours between the administration of vitamin D and the initiation of its action in the body due to the necessity of synthesis of the active metabolites in the liver and kidneys. Parathyroid hormone is responsible for the regulation of this metabolism in the kidneys.



Indications and Usage for Vitamin D Ergocalciferol


Ergocalciferol Capsules, USP are indicated for use in the treatment of hypoparathyroidism, refractory rickets, also known as vitamin D resistant rickets, and familial hypophosphatemia.



Contraindications


Ergocalciferol Capsules, USP are contraindicated in patients with hypercalcemia, malabsorption syndrome, abnormal sensitivity to the toxic effects of vitamin D, and hypervitaminosis D.



Warnings


Hypersensitivity to vitamin D may be one etiologic factor in infants with idiopathic hypercalcemia. In these cases vitamin D must be strictly restricted.


Keep out of the reach of children.



Precautions



General


Vitamin D administration from fortified foods, dietary supplements, self-administered and prescription drug sources should be evaluated. Therapeutic dosage should be readjusted as soon as there is clinical improvement. Dosage levels must be individualized and great care exercised to prevent serious toxic effects. IN VITAMIN D RESISTANT RICKETS THE RANGE BETWEEN THERAPEUTIC AND TOXIC DOSES IS NARROW. When high therapeutic doses are used progress should be followed with frequent blood calcium determinations.


In the treatment of hypoparathyroidism, intravenous calcium, parathyroid hormone, and/or dihydrotachysterol may be required.


Maintenance of a normal serum phosphorus level by dietary phosphate restriction and/or administration of aluminum gels as intestinal phosphate binders in those patients with hyperphosphatemia as frequently seen in renal osteodystrophy is essential to prevent metastatic calcification.


Adequate dietary calcium is necessary for clinical response to vitamin D therapy.


This product contains FD&C Yellow No. 5 (tartrazine) which may cause allergic-type reactions (including bronchial asthma) in certain susceptible individuals. Although the overall incidence of FD&C Yellow No. 5 (tartrazine) sensitivity in the general population is low, it is frequently seen in patients who also have aspirin hypersensitivity.


Protect from light.



Drug Interactions


Mineral oil interferes with the absorption of fat-soluble vitamins, including vitamin D preparations.


Administration of thiazide diuretics to hypoparathyroid patients who are concurrently being treated with Ergocalciferol Capsules, USP may cause hypercalcemia.



Carcinogenesis, Mutagenesis, Impairment of Fertility


No long-term animal studies have been performed to evaluate the drug's potential in these areas.



Pregnancy Category C



Animal reproduction studies have shown fetal abnormalities in several species associated with hypervitaminosis D. These are similar to the supravalvular aortic stenosis syndrome described in infants by Black in England (1963). This syndrome was characterized by supravalvular aortic stenosis, elfin facies, and mental retardation. For the protection of the fetus, therefore, the use of vitamin D in excess of the recommended dietary allowance during normal pregnancy should be avoided unless, in the judgment of the physician, potential benefits in a specific, unique case outweigh the significant hazards involved. The safety in excess of 400 USP Units of vitamin D daily during pregnancy has not been established.



Nursing Mothers


Caution should be exercised when Ergocalciferol Capsules, USP are administered to a nursing woman. In a mother given large doses of vitamin D, 25-hydroxycholecalciferol appeared in the milk and caused hypercalcemia in her child. Monitoring of the infant's serum calcium concentration is required in that case (Goldberg, 1972).



Pediatric Use


Pediatric doses must be individualized (see DOSAGE AND ADMINISTRATION).



Geriatric Use


Clinical studies of Ergocalciferol Capsules, USP did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. A few published reports have suggested that the absorption of orally administered vitamin D may be attenuated in elderly compared to younger, individuals. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.



Adverse Reactions


Hypervitaminosis D is characterized by effects on the following organ system:


Renal: Impairment of renal function with polyuria, nocturia, polydipsia, hypercalciuria, reversible azotemia, hypertension, nephrocalcinosis, generalized vascular calcification, or irreversible renal insufficiency which may result in death.


CNS: Mental retardation.


Soft Tissues: Widespread calcification of the soft tissues, including the heart, blood vessels, renal tubules, and lungs.


Skeletal: Bone demineralization (osteoporosis) in adults occurs concomitantly.


Decline in the average rate of linear growth and increased mineralization of bones in infants and children (dwarfism) vague aches, stiffness, and weakness.


Gastrointestinal: Nausea, anorexia, constipation.


Metabolic: Mild acidosis, anemia, weight loss.



Overdosage


The effects of administered vitamin D can persist for two or more months after cessation of treatment.


Hypervitaminosis D is characterized by:


  1. Hypercalcemia with anorexia, nausea, weakness, weight loss, vague aches and stiffness, constipation, mental retardation, anemia, and mild acidosis.

  2. Impairment of renal function with polyuria, nocturia, polydipsia, hypercalciuria, reversible azotemia, hypertension, nephrocalcinosis, generalized vascular calcification, or irreversible renal insufficiency which may result in death.

  3. Widespread calcification of the soft tissues, including the heart, blood vessels, renal tubules, and lungs. Bone demineralization (osteoporosis) in adults occurs concomitantly.

  4. Decline in the average rate of linear growth and increased mineralization of bones in infants and children (dwarfism).

The treatment of hypervitaminosis D with hypercalcemia consists in immediate withdrawal of the vitamin, a low calcium diet, generous intake of fluids, along with symptomatic and supportive treatment. Hypercalcemic crisis with dehydration, stupor, coma, and azotemia requires more vigorous treatment. The first step should be hydration of the patient. Intravenous saline may quickly and significantly increase urinary calcium excretion. A loop diuretic (furosemide or ethacrynic acid) may be given with the saline infusion to further increase renal calcium excretion. Other reported therapeutic measures include dialysis or the administration of citrates, sulfates, phosphates, corticosteroids, EDTA (ethylenediaminetetraacetic acid), and mithramycin via appropriate regimens. With appropriate therapy, recovery is the usual outcome when no permanent damage has occurred. Deaths via renal or cardiovascular failure have been reported.


The LD50 in animals is unknown. The toxic oral dose of ergocalciferol in the dog is 4 mg/kg.



Vitamin D Ergocalciferol Dosage and Administration


THE RANGE BETWEEN THERAPEUTIC AND TOXIC DOSES IS NARROW.


Vitamin D Resistant Rickets: 12,000 to 500,000 USP Units daily.


Hypoparathyroidism: 50,000 to 200,000 USP Units daily concomitantly with calcium lactate 4 g, six times per day.


DOSAGE MUST BE INDIVIDUALIZED UNDER CLOSE MEDICAL SUPERVISION.


Calcium intake should be adequate. Blood calcium and phosphorus determinations must be made every 2 weeks or more frequently if necessary.


X-rays of the bones should be taken every month until condition is corrected and stabilized.



How is Vitamin D Ergocalciferol Supplied


Each capsule contains Vitamin D (Ergocalciferol) 1.25 mg equivalent to 50,000 USP Units. The green colored oval shaped transparent soft gelatin capsules are imprinted with '194' in white and contain clear light yellow oily liquid.


Bottles of 50 capsules (NDC 0574-0194-50).


Bottles of 100 capsules (NDC 0574-0194-01).



Store at 20° to 25°C (68° to 77°F) [see USP Controlled Room Temperature].


Protect from light.



Manufactured for:

Paddock Laboratories, Inc.

Minneapolis, MN 55427


Manufactured by:

Strides Arcolab Limited

Bangalore – 560076,

India


(12-08)



PRINCIPAL DISPLAY PANEL - 1.25 mg Capsule Bottle


NDC 0574-0194-50


Vitamin D

(Ergocalciferol Capsules, USP)


1.25 mg*

(50,000 USP Units)

Rx ONLY


*Each capsule contains Vitamin D (Ergocalciferol)

1.25 mg equivalent to 50,000 USP Units


USUAL DOSAGE: See package insert. Dispense in tight,

light-resistant container as defined in the USP/NF.


50 Capsules


Paddock

Laboratories, Inc.










VITAMIN D 
ergocalciferol  capsule










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)0574-0194
Route of AdministrationORALDEA Schedule    








Active Ingredient/Active Moiety
Ingredient NameBasis of StrengthStrength
ERGOCALCIFEROL (ERGOCALCIFEROL)ERGOCALCIFEROL1.25 mg






















Inactive Ingredients
Ingredient NameStrength
FD&C BLUE NO. 1 
FD&C YELLOW NO. 5 
GELATIN 
GLYCERIN 
LECITHIN, SOYBEAN 
MEDIUM-CHAIN TRIGLYCERIDES 
WATER 
SOYBEAN OIL 
TITANIUM DIOXIDE 


















Product Characteristics
ColorGREENScoreno score
ShapeCAPSULESize12mm
FlavorImprint Code194
Contains      














Packaging
#NDCPackage DescriptionMultilevel Packaging
10574-0194-5050 CAPSULE In 1 BOTTLENone
20574-0194-01100 CAPSULE In 1 BOTTLENone










Marketing Information
Marketing CategoryApplication Number or Monograph CitationMarketing Start DateMarketing End Date
ANDAANDA09045508/09/2010


Labeler - Paddock Laboratories, Inc. (086116803)









Establishment
NameAddressID/FEIOperations
Strides Arcolab Limited918513263MANUFACTURE
Revised: 08/2010Paddock Laboratories, Inc.

More Vitamin D Ergocalciferol resources


  • Vitamin D Ergocalciferol Side Effects (in more detail)
  • Vitamin D Ergocalciferol Dosage
  • Vitamin D Ergocalciferol Use in Pregnancy & Breastfeeding
  • Drug Images
  • Vitamin D Ergocalciferol Drug Interactions
  • Vitamin D Ergocalciferol Support Group
  • 4 Reviews for Vitamin D Ergocalciferol - Add your own review/rating


Compare Vitamin D Ergocalciferol with other medications


  • Familial Hypophosphatemia
  • Hypocalcemia
  • Hypoparathyroidism
  • Hypophosphatemia
  • Osteomalacia
  • Renal Osteodystrophy
  • Rickets
  • Vitamin D Deficiency
  • Vitamin/Mineral Supplementation and Deficiency

Wednesday, April 18, 2012

Solu-Medrone 125 mg (Pharmacia Limited)





1. Name Of The Medicinal Product



Solu-Medrone 125 mg


2. Qualitative And Quantitative Composition



Solu-Medrone 125 mg : Methylprednisolone sodium succinate 165.8 mg equivalent to 125 mg of methylprednisolone.



3. Pharmaceutical Form



Powder for injection.



4. Clinical Particulars



4.1 Therapeutic Indications



Solu-Medrone is indicated to treat any condition in which rapid and intense corticosteroid effect is required such as:



1. Dermatological disease



Severe erythema multiforme (Stevens



2. Allergic states



Bronchial asthma



Severe seasonal and perennial allergic rhinitis



Angioneurotic oedema



Anaphylaxis



3. Gastro-intestinal diseases



Ulcerative colitis



Crohn's disease



4. Respiratory diseases



Aspiration of gastric contents



Fulminating or disseminated tuberculosis (with appropriate antituberculous chemotherapy)



5. Neurological disorders



Cerebral oedema secondary to cerebral tumour



Acute exacerbations of multiple sclerosis superimposed on a relapsing-remitting background.



6. Miscellaneous



T.B. meningitis (with appropriate antituberculous chemotherapy)



Transplantation



4.2 Posology And Method Of Administration



Solu-Medrone may be administered intravenously or intramuscularly, the preferred method for emergency use being intravenous injection given over a suitable time interval. When administering Solu-Medrone in high doses intravenously it should be given over a period of at least 30 minutes. Doses up to 250 mg should be given intravenously over a period of at least five minutes.



For intravenous infusion the initially prepared solution may be diluted with 5% dextrose in water, isotonic saline solution, or 5% dextrose in isotonic saline solution. To avoid compatibility problems with other drugs Solu-Medrone should be administered separately, only in the solutions mentioned.



Undesirable effects may be minimised by using the lowest effective dose for the minimum period (see Other special warnings and precautions).



Parenteral drug products should wherever possible be visually inspected for particulate matter and discoloration prior to administration.



Adults Dosage should be varied according to the severity of the condition, initial dosage will vary from 10 to 500 mg. In the treatment of graft rejection reactions following transplantation, a dose of up to 1 g/day may be required. Although doses and protocols have varied in studies using methylprednisolone sodium succinate in the treatment of graft rejection reactions, the published literature supports the use of doses of this level, with 500 mg to 1 g most commonly used for acute rejection. Treatment at these doses should be limited to a 48



Children In the treatment of high dose indications, such as haematological, rheumatic, renal and dermatological conditions, a dosage of 30 mg/kg/day to a maximum of 1 g/day is recommended. This dosage may be repeated for three pulses either daily or on alternate days. In the treatment of graft rejection reactions following transplantation, a dosage of 10 to 20 mg/kg/day for up to 3 days, to a maximum of 1 g/day, is recommended. In the treatment of status asthmaticus, a dosage of 1 to 4 mg/kg/day for 1



Elderly patients Solu-Medrone is primarily used in acute short



Detailed recommendations for adult dosage are as follows



In anaphylactic reactions adrenaline or noradrenaline should be administered first for an immediate haemodynamic effect, followed by intravenous injection of Solu-Medrone (methylprednisolone sodium succinate) with other accepted procedures. There is evidence that corticosteroids through their prolonged haemodynamic effect are of value in preventing recurrent attacks of acute anaphylactic reactions.



In sensitivity reactions Solu-Medrone is capable of providing relief within one half to two hours. In patients with status asthmaticus Solu-Medrone may be given at a dose of 40 mg intravenously, repeated as dictated by patient response. In some asthmatic patients it may be advantageous to administer by slow intravenous drip over a period of hours.



In graft rejection reactions following transplantation doses of up to 1 g per day have been used to suppress rejection crises, with doses of 500 mg to 1 g most commonly used for acute rejection. Treatment should be continued only until the patient's condition has stabilised; usually not beyond 48



In cerebral oedema corticosteroids are used to reduce or prevent the cerebral oedema associated with brain tumours (primary or metastatic).



In patients with oedema due to tumour, tapering the dose of corticosteroid appears to be important in order to avoid a rebound increase in intracranial pressure. If brain swelling does occur as the dose is reduced (intracranial bleeding having been ruled out), restart larger and more frequent doses parenterally. Patients with certain malignancies may need to remain on oral corticosteroid therapy for months or even life. Similar or higher doses may be helpful to control oedema during radiation therapy.



The following are suggested dosage schedules for oedemas due to brain tumour.






















































Schedule A (1)




Dose (mg)




Route in hours




Interval




Duration




Pre-operative




20




IM




3-6




 



 




During Surgery




20 to 40




IV




hourly


 


Post-operative




20




IM




3




24 hours




16




IM




3




24 hours




 



 




12




IM




3




24 hours


 


8




IM




3




24 hours


 


4




IM




3




24 hours


 


4




IM




6




24 hours


 


4




IM




12




24 hours


 










































Schedule B (2)




Dose (mg)




Route in hours




Interval Duration




Days




Pre-operative




40




IM




6




2-3




Post-operative




40




IM




6




3-5




20




Oral




6




1




 



 




12




Oral




6




1


 


8




Oral




8




1


 


4




Oral




12




1


 


4




Oral




 



 




1


 


Aim to discontinue therapy after a total of 10 days.



REFERENCES



1. Fox JL, MD. "Use of Methylprednisolone in Intracranial Surgery" Medical Annals of the District of Columbia, 34:261



2. Cantu RC, MD Harvard Neurological Service, Boston, Massachusetts. Letter on file, The Upjohn Company (February 1970).



In the treatment of acute exacerbations of multiple sclerosis in adults, the recommended dose is 1 g daily for 3 days. Solu-Medrone should be given as an intravenous infusion over at least 30 minutes.



In other indications, initial dosage will vary from 10 to 500 mg depending on the clinical problem being treated. Larger doses may be required for short



4.3 Contraindications



Solu-Medrone is contra-indicated where there is known hypersensitivity to components, in systemic infection unless specific anti-infective therapy is employed and in cerebral oedema in malaria.



4.4 Special Warnings And Precautions For Use



Warnings and Precautions



1. A Patient Information Leaflet is provided in the pack by the manufacturer.



2. Undesirable effects may be minimised by using the lowest effective dose for the minimum period. Frequent patient review is required to appropriately titrate the dose against disease activity (see Posology and method of administration).



3. Adrenal cortical atrophy develops during prolonged therapy and may persist for months after stopping treatment. In patients who have received more than physiological doses of systemic corticosteroids (approximately 6 mg methylprednisolone) for greater than 3 weeks, withdrawal should not be abrupt. How dose reduction should be carried out depends largely on whether the disease is likely to relapse as the dose of systemic corticosteroids is reduced. Clinical assessment of disease activity may be needed during withdrawal. If the disease is unlikely to relapse on withdrawal of systemic corticosteroids, but there is uncertainty about HPA suppression, the dose of systemic corticosteroid may be reduced rapidly to physiological doses. Once a daily dose of 6 mg methylprednisolone is reached, dose reduction should be slower to allow the HPA-axis to recover.



Abrupt withdrawal of systemic corticosteroid treatment, which has continued up to 3 weeks is appropriate if it considered that the disease is unlikely to relapse. Abrupt withdrawal of doses up to 32 mg daily of methylprednisolone for 3 weeks is unlikely to lead to clinically relevant HPA-axis suppression, in the majority of patients. In the following patient groups, gradual withdrawal of systemic corticosteroid therapy should be considered even after courses lasting 3 weeks or less:



• Patients who have had repeated courses of systemic corticosteroids, particularly if taken for greater than 3 weeks.



• When a short course has been prescribed within one year of cessation of long-term therapy (months or years).



• Patients who may have reasons for adrenocortical insufficiency other than exogenous corticosteroid therapy.



• Patients receiving doses of systemic corticosteroid greater than 32 mg daily of methylprednisolone.



• Patients repeatedly taking doses in the evening.



4. Patients should carry 'Steroid Treatment' cards which give clear guidance on the precautions to be taken to minimise risk and which provide details of prescriber, drug, dosage and the duration of treatment.



5. Although Solu-Medrone is not approved in the UK for use in any shock indication, the following warning statement should be adhered to. Data from a clinical study conducted to establish the efficacy of Solu-Medrone in septic shock, suggest that a higher mortality occurred in subsets of patients who entered the study with elevated serum creatinine levels or who developed a secondary infection after therapy began. Therefore this product should not be used in the treatment of septic syndrome or septic shock.



6. There have been a few reports of cardiac arrhythmias and/or circulatory collapse and/or cardiac arrest associated with the rapid intravenous administration of large doses of Solu-Medrone (greater than 500 mg administered over a period of less than 10 minutes). Bradycardia has been reported during or after the administration of large doses of methylprednisolone sodium succinate, and may be unrelated to the speed and duration of infusion.



7. Corticosteroids may mask some signs of infection, and new infections may appear during their use. Suppression of the inflammatory response and immune function increases the susceptibility to fungal, viral and bacterial infections and their severity. The clinical presentation may often be atypical and may reach an advanced stage before being recognised.



8. Chickenpox is of serious concern since this normally minor illness may be fatal in immunosuppressed patients. Patients (or parents of children) without a definite history of chickenpox should be advised to avoid close personal contact with chickenpox or herpes zoster and if exposed they should seek urgent medical attention. Passive immunization with varicella/zoster immunoglobin (VZIG) is needed by exposed non-immune patients who are receiving systemic corticosteroids or who have used them within the previous 3 months; this should be given within 10 days of exposure to chickenpox. If a diagnosis of chickenpox is confirmed, the illness warrants specialist care and urgent treatment. Corticosteroids should not be stopped and the dose may need to be increased.



9. Live vaccines should not be given to individuals with impaired immune responsiveness. The antibody response to other vaccines may be diminished.



10. The use of Solu-Medrone in active tuberculosis should be restricted to those cases of fulminating or disseminated tuberculosis in which the corticosteroid is used for the management of the disease in conjunction with an appropriate anti-tuberculous regimen. If corticosteroids are indicated in patients with latent tuberculosis or tuberculin reactivity, close observation is necessary as reactivation of the disease may occur. During prolonged corticosteroid therapy, these patients should receive chemoprophylaxis.



11. Rarely anaphylactoid reactions have been reported following parenteral Solu-Medrone therapy. Physicians using the drug should be prepared to deal with such a possibility. Appropriate precautionary measures should be taken prior to administration, especially when the patient has a history of drug allergy.



12. Care should be taken for patients receiving cardioactive drugs such as digoxin because of steroid induced electrolyte disturbance/potassium loss (see Undesirable effects).



Special precautions



Particular care is required when considering the use of systemic corticosteroids in patients with the following conditions and frequent patient monitoring is necessary.



1. Osteoporosis (post-menopausal females are particularly at risk).



2. Hypertension or congestive heart failure.



3. Existing or previous history of severe affective disorders (especially previous steroid psychosis).



4. Diabetes mellitus (or a family history of diabetes).



5. History of tuberculosis.



6. Glaucoma (or a family history of glaucoma).



7. Previous corticosteroid-induced myopathy.



8. Liver failure or cirrhosis.



9. Renal insufficiency.



10. Epilepsy.



11. Peptic ulceration.



12. Fresh intestinal anastomoses.



13. Predisposition to thrombophlebitis.



14. Abscess or other pyogenic infections.



15. Ulcerative colitis.



16. Diverticulitis.



17. Myasthenia gravis.



18. Ocular herpes simplex, for fear of corneal perforation.



19. Hypothyroidism.



Use in children Corticosteroids cause growth retardation in infancy, childhood and adolescence, which may be irreversible. Treatment should be limited to the minimum dosage for the shortest possible time. In order to minimise suppression of the hypothalamo



Use in the elderly The common adverse effects of systemic corticosteroids may be associated with more serious consequences in old age, especially osteoporosis, hypertension, hypokalaemia, diabetes, susceptibility to infection and thinning of the skin. Close clinical supervision is required to avoid life-threatening reactions.



4.5 Interaction With Other Medicinal Products And Other Forms Of Interaction



1. Convulsions have been reported with concurrent use of methylprednisolone and cyclosporin. Since concurrent administration of these agents results in a mutual inhibition of metabolism, it is possible that convulsions and other adverse events associated with the individual use of either drug may be more apt to occur.



2. Drugs that induce hepatic enzymes, such as rifampicin, rifabutin, carbamazepine, phenobarbitone, phenytoin, primidone, and aminoglutethimide enhance the metabolism of corticosteroids and its therapeutic effects may be reduced.



3. Drugs such as erythromycin and ketoconazole may inhibit the metabolism of corticosteroids and thus decrease their clearance.



4. Steroids may reduce the effects of anticholinesterases in myasthenia gravis. The desired effects of hypoglycaemic agents (including insulin), anti-hypertensives and diuretics are antagonised by corticosteroids, and the hypokalaemic effects of acetazolamide, loop diuretics, thiazide diuretics and carbenoxolone are enhanced.



5. The efficacy of coumarin anticoagulants may be enhanced by concurrent corticosteroid therapy and close monitoring of the INR or prothrombin time is required to avoid spontaneous bleeding.



6. The renal clearance of salicylates is increased by corticosteroids and steroid withdrawal may result in salicylate intoxication. Salicylates and non-steroidal anti-inflammatory agents should be used cautiously in conjunction with corticosteroids in hypothrombinaemia.



7. Steroids have been reported to interact with neuromuscular blocking agents such as pancuronium with partial reversal of the neuromuscular block.



4.6 Pregnancy And Lactation



Pregnancy



The ability of corticosteroids to cross the placenta varies between individual drugs, however, methylprednisolone does cross the placenta.



Administration of corticosteroids to pregnant animals can cause abnormalities of foetal development including cleft palate, intra-uterine growth retardation and affects on brain growth and development. There is no evidence that corticosteroids result in an increased incidence of congenital abnormalities, such as cleft palate in man, however, when administered for long periods or repeatedly during pregnancy, corticosteroids may increase the risk of intra-uterine growth retardation. Hypoadrenalism may, in theory , occur in the neonate following prenatal exposure to corticosteroids but usually resolves spontaneously following birth and is rarely clinically important. As with all drugs, corticosteroids should only be prescribed when the benefits to the mother and child outweigh the risks. When corticosteroids are essential, however, patients with normal pregnancies may be treated as though they were in the non-gravid state.



Lactation



Corticosteroids are excreted in small amounts in breast milk, however, doses of up to 40 mg daily of methylprednisolone are unlikely to cause systemic effects in the infant. Infants of mothers taking higher doses than this may have a degree of adrenal suppression, but the benefits of breastfeeding are likely to outweigh any theoretical risk.



4.7 Effects On Ability To Drive And Use Machines



None stated.



4.8 Undesirable Effects



Under normal circumstances Solu-Medrone therapy would be considered as short-term. However, the possibility of side-effects attributable to corticosteroid therapy should be recognised, particularly when high-dose therapy is being used (see Special warnings and special precautions for use). Such side-effects include:



PARENTERAL CORTICOSTEROID THERAPY - Anaphylactic reaction with or without circulatory collapse, cardiac arrest, bronchospasm, cardiac arrhythmias, hypotension or hypertension.



GASTRO-INTESTINAL - Dyspepsia, peptic ulceration with perforation and haemorrhage, abdominal distension, oesophageal ulceration, oesophageal candidiasis, acute pancreatitis. Nausea, vomiting and bad taste in mouth may occur especially with rapid administration.



Increases in alanine transaminase (ALT, SGPT) aspartate transaminase (AST, SGOT) and alkaline phosphatase have been observed following corticosteroid treatment. These changes are usually small, not associated with any clinical syndrome and are reversible upon discontinuation.



ANTI-INFLAMMATORY AND IMMUNOSUPPRESSIVE EFFECTS - Increased susceptibility and severity of infections with suppression of clinical symptoms and signs, opportunistic infections, may suppress reactions to skin tests, recurrence of dormant tuberculosis (see Special warnings and special precautions for use).



MUSCULOSKELETAL - Proximal myopathy, osteoporosis, vertebral and long bone fractures, avascular osteonecrosis, tendon rupture.



FLUID AND ELECTROLYTE DISTURBANCE - Sodium and water retention, potassium loss, hypertension, hypokalaemic alkalosis, congestive heart failure in susceptible patients.



DERMATOLOGICAL - Impaired healing, petechiae and ecchymosis, skin atrophy, bruising, striae, telangiectasia, acne.



ENDOCRINE/METABOLIC - Suppression of the hypothalamo



NEUROPSYCHIATRIC - Euphoria, psychological dependence, mood swings, depression, personality changes, insomnia. Increased intra-cranial pressure with papilloedema in children (pseudotumour cerebri), usually after treatment withdrawal. Psychosis, aggravation of schizophrenia, seizures.



OPHTHALMIC - Increased intra



GENERAL - Leucocytosis, hypersensitivity including anaphylaxis, thrombo-embolism, malaise.



WITHDRAWAL SYMPTOMS - Too rapid a reduction of corticosteroid dosage following prolonged treatment can lead to acute adrenal insufficiency, hypotension and death. However, this is more applicable to corticosteroids with an indication where continuous therapy is given (see Special warnings and special precautions for use).



A 'withdrawal syndrome' may also occur including, fever, myalgia, arthralgia, rhinitis, conjunctivitis, painful itchy skin nodules and loss of weight.



4.9 Overdose



There is no clinical syndrome of acute overdosage with Solu-Medrone. Methylprednisolone is dialysable. Following chronic overdosage the possibility of adrenal suppression should be guarded against by gradual diminution of dose levels over a period of time. In such event the patient may require to be supported during any further stressful episode.



5. Pharmacological Properties



5.1 Pharmacodynamic Properties



Medrone is a corticosteroid with an anti-inflammatory activity at least five times that of hydrocortisone. An enhanced separation of glucocorticoid and mineralocorticoid effect results in a reduced incidence of sodium and water retention.



5.2 Pharmacokinetic Properties



Methylprednisolone is extensively bound to plasma proteins, mainly to globulin and less so to albumin. Only unbound corticosteroid has pharmacological effects or is metabolised. Metabolism occurs in the liver and to a lesser extent in the kidney. Metabolites are excreted in the urine.



Mean elimination half-life ranges from 2.4 to 3.5 hours in normal healthy adults and appears to be independent of the route of administration.



Total body clearance following intravenous or intramuscular injection of methylprednisolone to healthy adult volunteers is approximately 15-16l/hour. Peak methylprednisolone plasma levels of 33.67 mcg/100 ml were achieved in 2 hours after a single 40 mg i.m. injection to 22 adult male volunteers.



6. Pharmaceutical Particulars



6.1 List Of Excipients



Sodium biphosphate and sodium phosphate.



The 40 mg vial also contains lactose.



6.2 Incompatibilities



None stated.



6.3 Shelf Life



Shelf-life of the medicinal product as packaged for sale: 60 months.



After reconstitution with Sterile Water for injections, use immediately, discard any remainder.



6.4 Special Precautions For Storage



Store below 25°C.



Refer to Section 4.2 Dosage and Administration. No diluents other than those referred to are recommended. Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration.



6.5 Nature And Contents Of Container



Type I clear glass vial with butyl rubber plug and flip top seal.



Each vial of Solu-Medrone 125 mg contains the equivalent of 125 mg of methylprednisolone as the sodium succinate for reconstitution with 2 ml of Sterile Water for Injections.



6.6 Special Precautions For Disposal And Other Handling



No special requirements.



7. Marketing Authorisation Holder



Pharmacia Limited



Davy Avenue



Milton Keynes



MK5 8PH



UK



8. Marketing Authorisation Number(S)



Solu- Medrone 125 mg PL 0032/0034



9. Date Of First Authorisation/Renewal Of The Authorisation



PL 0032/ 0034, date of first authorisation: 21 February 1990



Last renewal date: 20 August 1996



10. Date Of Revision Of The Text



May 2001



Legal Category


POM.




Tuesday, April 17, 2012

TechneLite





Dosage Form: injection

DESCRIPTION: Sodium Pertechnetate Tc 99m Injection, as eluted according to the elution instructions with Bristol-Myers Squibb Medical Imaging, Inc. TechneLite®, Technetium Tc 99m Generator, is in Sodium Chloride 0.9% as a sterile, non-pyrogenic, diagnostic radiopharmaceutical suitable for intravenous injection, oral administration, and direct instillation. The pH is 4.5-7.5. The eluate should be clear, colorless, and free from visible foreign material. Each eluate of the TechneLite®, Technetium Tc 99m Generator should not contain more than 0.0056MBq (0.15 microcuries) of Molybdenum Mo99 per 37MBq (1 millicurie) of Technetium Tc 99m per administered dose at the time of administration, and not more than 10 micrograms of aluminum per milliliter of the Technetium Tc 99m Generator eluate, both of which must be determined by the user before administration. Since the eluate does not contain an antimicrobial agent, it should not be used later than one (1) working day after the elution (12 hours).


Bristol-Myers Squibb Medical Imaging, Inc. TechneLite®, Technetium Tc 99m Generator consists of a column containing fission produced Molybdenum Mo99 adsorbed on alumina. The terminally sterilized and sealed column is enclosed in a lead shield; the shield and other components are sealed in a cylindrical plastic container with an attached handle. Built into the top surface are two recessed wells marked CHARGE and COLLECT. Needles protruding from these two wells accommodate supplied sterile eluant charge vials and sterile eluate collection vials. The eluting solvent consists of Sodium Chloride 0.9%, prepacked into septum-sealed vials.


The eluate collection vial is evacuated, sterile and non-pyrogenic. A sterile 0.22 micrometer bacteriological filter is incorporated between the column outlet and the collection vials. During and subsequent to elution, the eluate collection vial should be kept in a radiation shield. The Generator is shipped with a silicone needle seal over the charge needle and a vented needle cover over the collect needle. A sterile vial containing bacteriostat is supplied for the customer to aseptically reseal the collect needle after each elution.



PHYSICAL CHARACTERISTICS

Tc 99m decays by isomeric transition with a physical half-life of 6.02 hours.1 Photons that are useful for imaging studies are listed in Table 1.










Table 1. Principal Radiation Emission Data - Technetium Tc 99m
1Kocher, David C., "Radioactive Decay Data Tables," DOE/TIC-11026, 108 (1981).
RadiationMean %/DisintegrationMean Energy (keV)
Gamma-289.07140.5

EXTERNAL RADIATION

The specific gamma ray constant for Technetium Tc 99m is 5.4 microcoulombs/Kg-MBq-hr (0.78 R/mCi-hr) at 1cm. The first half-value thickness is 0.017cm of lead (Pb). To facilitate control of radiation exposure from millicurie amounts of Technetium Tc 99m, for example, the use of a 0.25 cm thick standard radiation elution lead shield will attenuate the radiation emitted by a factor of about 1000. A range of values for the relative attenuation of the radiation emitted by this radionuclide that results from interposition of various thicknesses of lead is shown in Table 2.


NOTE: Because the generator is well contained and essentially dry, there is little likelihood of contamination due to damage in transit. The most probable source of leakage resulting from damage in transit is the nonradioactive eluant charge vial.















Table 2. Radiation Attenuation of Technetium Tc 99m by Lead Shielding
Shield Thickness

lead (Pb) cm
Coefficient of Attenuation
0.0170.5
0.0810-1
0.1610-2
0.2510-3
0.3310-4

Molybdenum Mo99 decays to Technetium Tc 99m with a Molybdenum Mo99 half-life of 66 hours. The physical decay characteristics of Molybdenum Mo99 are such that only 88.6% of the decaying Molybdenum Mo99 atoms form Technetium Tc 99m. This means that only 78% of the activity remains after 24 hours; 60% remains after 48 hours, etc. All units have a minimum of 38 mm, 1.5 inches (~ 6 half-value layers) of lead surrounding the activity. Since the Molybdenum Mo99 is constantly decaying to fresh Technetium Tc 99m, it is possible to elute the generator at any time. (See Table 3.)







































Table 3. Molybdenum Mo99 Decay Chart Half-Life 66.0 Hours
DaysPercent RemainingDaysPercent Remaining
0100813
178910
260108
347116
436125
528134
622143
717  

Generator elutions may be made at any time, but the amount of Technetium Tc 99m available will depend on the interval from the last elution. Approximately 47% of maximum Technetium Tc 99m is reached after 6 hours and 95% after 24 hours.


The elution vial shield has a wall thickness of 7.9 mm, 0.31 inches, and reduces transmitted Technetium Tc 99m radiation essentially to zero. To correct for physical decay of Tc 99m, the fractions that remain at selected intervals of time are shown in Table 4.




































Table 4. Physical Decay Chart: Technetium Tc 99m Half-Life 6.02 Hours
*Calibration Time
HoursPercent RemainingHoursPercent Remaining
0*100.0744.7
189.1839.8
279.4935.5
370.81031.6
463.11128.2
556.21225.1
650.1  

CLINICAL PHARMACOLOGY: The pertechnetate ion distributes in the body similarly to the iodide ion but is not organified when trapped in the thyroid gland. Pertechnetate tends to accumulate in intracranial lesions with excessive neovascularity or an altered blood-brain barrier. It also concentrates in the choroid plexus, thyroid gland, salivary glands, and stomach. However, in contrast to the iodide ion, the pertechnetate ion is released unchanged from the thyroid gland.


After intravascular administration it remains in the circulatory system for sufficient time to permit blood pool, organ perfusion, and major vessel studies. It gradually equilibrates with the extracellular space. A fraction is promptly excreted via the kidneys.


Following the administration of Sodium Pertechnetate Tc 99m Injection as an eye drop, the drug mixes with tears within the conjunctival space. Within seconds to minutes it leaves the conjunctival space and escapes into the inferior meatus of the nose through the nasolacrimal drainage system. During this process the pertechnetate ion passes through the canaliculi, the lacrimal sac and the nasolacrimal duct. In the event of any anatomical or functional blockage of the drainage system there will be a backflow resulting in tearing (epiphora). Thus the pertechnetate escapes the conjunctival space in the tears.


While the major part of the pertechnetate escapes within a few minutes of normal drainage and tearing, it has been documented that there is some degree of transconjunctival absorption with a fractional turnover rate of 0.015/min in normal individuals, 0.021/min in patients without any sac and 0.027/min in patients with inflamed conjunctiva due to chronic dacryocystitis. Individual values may vary but these rates are probably representative and indicate that the maximum possible pertechnetate absorbed will remain below one thousandth of that used in other routine diagnostic procedures.



INDICATIONS AND USAGE: Sodium Pertechnetate Tc 99m Injection is used IN ADULTS as an agent for:


 

Brain Imaging (including cerebral radionuclide angiography)

 

Thyroid Imaging

 

Salivary Gland Imaging

 

Placenta Localization

 

Blood Pool Imaging (including radionuclide angiography)

 

Urinary Bladder Imaging (direct isotopic cystography) for the detection of vesico-ureteral reflux.

 

Nasolacrimal Drainage System Imaging

Sodium Pertechnetate Tc 99m Injection is used IN CHILDREN as an agent for:


 

Brain Imaging (including cerebral radionuclide angiography)

 

Thyroid Imaging

 

Blood Pool Imaging

 

Urinary Bladder Imaging (direct isotopic cystography) for the detection of vesico-ureteral reflux.


CONTRAINDICATIONS: None known.



WARNINGS: Radiation risks associated with the use of Sodium Pertechnetate Tc 99m Injection are greater in children than in adults and, in general, the younger the child, the greater the risk owing to greater absorbed radiation doses and longer life-expectancy. These greater risks should be taken firmly into account in all benefit-risk assessments involving children.



PRECAUTIONS:



General


As in the use of any radioactive material, care should be taken to minimize radiation exposure to the patient consistent with proper patient management and to ensure minimum radiation exposure to occupational workers.


Since the eluate does not contain an antimicrobial agent, it should not be used after 12 hours from the time of TechneLite®, Technetium Tc 99m Generator elution.


After the termination of the nasolacrimal imaging procedure, blowing the nose and washing the eyes with sterile distilled water or an isotonic sodium chloride solution will further minimize the radiation dose.


Radiopharmaceuticals should be used only by physicians who are qualified by training and experience in the safe handling of radionuclides and whose experience and training have been approved by the appropriate government agency authorized to license the use of radionuclides.



Carcinogenesis, Mutagenesis, Impairment of Fertility


No animal studies have been performed to evaluate carcinogenic potential or whether Sodium Pertechnetate Tc 99m affects fertility in males or females.



Pregnancy Category C


Animal reproductive studies have not been conducted with Sodium Pertechnetate Tc 99m. It is also not known whether Sodium Pertechnetate Tc 99m can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity. Sodium Pertechnetate Tc 99m Injection should be given to a pregnant woman only if clearly needed.


Ideally examinations using radiopharmaceuticals, especially those elective in nature, of a woman of childbearing capability should be performed during the first few (approximately 10) days following the onset of menses.



Nursing Mothers


Sodium Pertechnetate Tc 99m is excreted in human milk during lactation; therefore formula feedings should be substituted for breast feeding.


This radiopharmaceutical preparation should not be administered to pregnant or lactating women unless expected benefits to be gained outweigh the potential risks.



Pediatric Use


See INDICATIONS and DOSAGE AND ADMINISTRATION sections. Also see the description of additional risks under WARNINGS.



Geriatric Use


Clinical studies of TechneLite® did not include sufficient numbers of subjects aged 65 and over to determine whether they respond differently from younger subjects. Other reported clinical experience has not identified differences in responses between the elderly and younger patients. In general, dose selection for an elderly patient should be cautious, usually starting at the low end of the dosing range, reflecting the greater frequency of decreased hepatic, renal, or cardiac function, and of concomitant disease or other drug therapy.



ADVERSE REACTIONS: Allergic reactions including anaphylaxis have been reported infrequently following the administration of Sodium Pertechnetate Tc 99m Injection.



DOSAGE AND ADMINISTRATION: Sodium Pertechnetate Tc 99m Injection is usually administered by intravascular injection but can be given orally. For imaging the urinary bladder and ureters (direct isotopic cystography), the Sodium Pertechnetate Tc 99m Injection is administered by direct instillation aseptically into the bladder via a urethral catheter, following which the catheter is flushed with approximately 200 mL of sterile saline directly into the bladder. The dosage employed varies with each diagnostic procedure. If the oral route is elected, the patient should fast for at least six (6) hours before and two (2) hours after administration. When imaging the nasolacrimal drainage system, instill the Sodium Pertechnetate Tc 99m Injection by the use of a device such as a micropipette or similar method which will ensure the accuracy of the dose.


The suggested dose range employed for various diagnostic indications in the average ADULT PATIENT (70kg) is:
















Vesico-ureteral Imaging18.5 to 37MBq (0.5 to 1mCi)
Brain Imaging370 to 740MBq (10 to 20mCi)
Thyroid Gland Imaging37 to 370MBq (1 to 10mCi)
Salivary Gland Imaging37 to 185MBq (1 to 5mCi)
Placenta Localization37 to 111 MBq (1 to 3mCi)
Blood Pool Imaging370 to 1110MBq (10 to 30mCi)
Nasolacrimal Drainage SystemMax. 3.7MBq (100μCi)

The recommended dosage range in PEDIATRIC PATIENTS is:










Vesico-ureteral Imaging18.5 to 37MBq (0.5 to 1mCi)
Brain Imaging5.18 to 10.36MBq (140 to 280μCi)/kg body weight
Thyroid Gland Imaging2.22 to 2.96MBq (60 to 80μCi)/kg body weight
Blood Pool Imaging5.18 to 10.36MBq (140 to 280μCi)/kg body weight

A minimum dose of 111 to 185MBq (3 to 5 mCi) should be employed if radionuclide angiography is performed as part of the blood pool or brain imaging procedure.


NOTE: Up to one (1) gram of pharmaceutical grade potassium perchlorate in a suitable base or capsule may be given prior to administration of Sodium Pertechnetate Tc 99m Injection. When Sodium Pertechnetate Tc 99m Injection is used in children for brain or blood pool imaging, the administration of potassium perchlorate is especially important in order to minimize the absorbed radiation dose to the thyroid gland.


The patient dose should be measured by a suitable radioactivity calibration system immediately prior to administration of the dose.


Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and container permit. The solution to be administered as the patient dose should be clear and contain no particulate matter. Do not use an eluate of the TechneLite®, Technetium Tc 99m Generator later than one (1) working day after elution (12 hours).



RADIATION DOSIMETRY


The estimated absorbed radiation doses2 to an average ADULT patient (70 kg) from an intravenous injection of a maximum dose of 1110MBq (30 millicuries) of Sodium Pertechnetate Tc 99m Injection distributed uniformly in the total body of subjects not pretreated with blocking agents such as pharmaceutical grade potassium perchlorate are shown in Table 5. For placenta localization studies, when a maximum of 111MBq (3 millicuries) is used, it is assumed to be uniformly equilibrated between maternal and fetal tissues.




























































Table 5. Absorbed Radiation Doses (Adults)
mGy/1110MBq

(rads/30 millicuries)
TissueResting

Population
Active

Population
mGy/111MBq

(rads/3mCi)
Bladder Wall15.9 (1.59)25.5 (2.55)-
Gastrointestinal Tract:   
   Stomach Wall75.0 (7.50)15.3 (1.53)-
   Upper Large Intestine Wall20.4 (2.04)36.0 (3.60)-
   Lower Large Intestine Wall18.3 (1.83)33.0 (3.30)-
Red Marrow5.7 (0.57)5.1 (0.51)-
Testes2.7 (0.27)2.7 (0.27)-
Ovaries6.6 (0.66)9.0 (0.90)-
Thyroid39.0 (3.90)39.0 (3.90)-
Brain4.2 (0.42)3.6 (0.36)-
Whole-Body4.2 (0.42)3.3 (0.33)-
Placenta--0.5(0.05)
Fetus--0.5(0.05)

In pediatric patients, the maximum radiation doses of 185MBq (5 millicuries) of Sodium Pertechnetate Tc 99m Injection administered to a neonate (3.5 kg) for brain or blood pool imaging with radionuclide angiography are shown in Table 6. In pediatric patients, an average 30 minute exposure to 37MBq (1 millicurie) of Sodium Pertechnetate Tc 99m Injection following instillation for direct cystography, results in an estimated absorbed radiation dose of approximately 0.30mGy (30 millirads) to the bladder wall and 0.04 to 0.05mGy (4 to 5 millirads) to the gonads.3










































Table 6. Absorbed Radiation Doses (Pediatric)
Absorbed Radiation Doses
TissuemGy/

37MBq
(rads/

1mCi)
mGy/

185MBq
(rads/

5mCi)
2 Modified from: Summary of Current Radiation Dose Estimates to Normal Humans from 99m-Tc as Sodium Pertechnetate.  MIRD Dose Estimates Report No. 8. J. Nucl. Med. 17(1): 74-77, 1976.
3 Conway, JJ, et al: Direct and Indirect radionuclide cystography.  J. Urol. 113: 689-693 May 1975.
Thyroid (without perchlorate)46.0(4.6)230.0(23.0)
Thyroid (with perchlorate)9.7(1.0)48.5(4.9)
Large Bowel (with perchlorate)19.0(1.9)95.5(9.6)
Testes1.0(0.1)5.1(0.5)
Ovaries2.2(0.2)11.0(1.1)
Whole-Body1.5(0.2)7.6(0.8)










Table 7. Absorbed Radiation Dose from Dacryoscintigraphy Using Sodium Pertechnetate Tc 99m
Absorbed Dose
Target OrganmGy/

3.7MBq
(mrad/

100μCi)
* Assuming no blockage of drainage system. MIRD Dose Estimate Report No. 8, J. Nucl Med. 17: 74-77, 1976.
Eye Lens:

  If lacrimal fluid turnover is 16%/min

  If lacrimal fluid turnover is 100%/min

  If drainage system is blocked

Total Body*

Ovaries*

Testes*

Thyroid*


0.140

0.022

4.020

0.011

0.030

0.009

0.130


14.0

2.2

402.0

1.1

3.0

0.9

13.0

HOW SUPPLIED: Bristol-Myers Squibb Medical Imaging TechneLite®, Technetium Tc 99m Generator is available in the following quantities of radioactivity: 37.0 (NDC #11994-090-36), 74.0 (NDC #11994-090-73), 92.5 (NDC #11994-090-92), 111.0 (NDC #11994-090-01), 148.0 (NDC #11994-090-03), 166.5 (NDC #11994-090-04), 185.0 (NDC #11994-090-05), 222.0 (NDC #11994-090-06), 277.5 (NDC #11994-090-07), 370.0 (NDC #11994-090-09), 462.5 (NDC #11994-090-10), 555.0 GBq(NDC #11994-090-11), 666.0 GBq (NDC #11994-090- 12) (1000, 2000, 2500, 3000, 4000, 4500, 5000, 6000, 7500, 10,000, 12,500, 15,000 18,000 mCi) of Mo99 on the calibration date (date of manufacture) as specified on the product lot identification label affixed to the generator. Each generator is supplied with the following standard components:


 

1 Collect Needle Seal Vial

 

6 Eluant Charge Vials (may be supplied separately)

 

6 Eluate Collection Vials (may be supplied separately)

 

1 Package Insert

 

6 Radiation Labels (Collection Vial)

 

6 Radiation Labels (Eluting Shield)

 

1 Molybdenum Mo99 Activity Record (optional)

First order generators are shipped with the following accessory components:


 

2 Eluting Shields

Extra quantities of these components may be obtained at the customer's request.



STORAGE: Controlled room temperature 20° to 25°C (68° to 77°F) [See USP].



EXPIRATION: The expiration time of the Sodium Pertechnetate Tc 99m Injection is not later than 12 hours after elution. (If the eluate is to be used to reconstitute a kit for the preparation of a Technetium Tc 99m radiopharmaceutical, the kit should not be used after 12 hours from time of Generator elution or after six hours from the time of reconstitution of the kit.)


The expiration date of the TechneLite®, Technetium Tc 99m Generator is fourteen days post-manufacture.



ELUTION INSTRUCTIONS - TOTAL ELUTION METHOD


  1. Waterproof gloves should be worn during elution.

  2. Remove dust (clear plastic) cover of generator.

  3. Perform all subsequent operations aseptically.

  4. Remove silicone needle seal from eluant charge well. Discard as radioactive waste.

  5. Remove flip-off seal and swab septum of eluant charge vial with a bactericide (such as 70% isopropyl alcohol), allow to dry, and insert the vial into charge well. Vial should be firmly inserted to assure puncture of septum.

  6. Open elution shield base and insert an eluate collection vial from which the flip-off seal has been removed. Screw base back on securely. Swab the exposed vial septum with a bactericide.

  7. Remove vented needle cover from collect well. Discard as radioactive waste.

  8. Insert shielded eluate collection vial in collect well. Elution should commence within 30 seconds and can be visually checked by the appearance of bubbles in the eluant charge vial.**

    **NOTE: If bubbles do not appear in the eluant charge vial within 30 seconds, either one of the vials has not been properly placed on its needle or the eluate vial has no vacuum. Remove the eluate collection vial to prevent vacuum loss; then remove and reinsert the charge vial. Reinsert the eluate collection vial and if elution does not commence, use a second shielded collection vial.

    Caution: Tampering with the internal components could compromise sterility and present a radiation hazard. This generator should not be dismantled.

  9. To assure proper yield and functioning, elution must proceed to completion as evidenced by emptying of the charge vial. Allow generator to elute for at least 3 minutes after the charge has been drained, or for a total of 6 minutes.

  10. After elution has been completed, remove shield containing the collection vial. Obtain the collect needle seal vial, and using a bactericide, swab the septum of the collect needle seal vial and insert over the collect needle. The eluant vial is sterile and should stay in place until the next elution, functioning as a seal for the needles within the charge well. Upon initiating the next elution, discard the empty eluant vial as radioactive waste.

  11. Fill out and attach the appropriate supplied pressure sensitive radioactivity labels to the elution shield containing the filled eluate collection vial. Do not use an eluate of the Technetium Tc 99m Generator later than 1 working day after the time of elution (12 hours).

  12. Use a shielded syringe when introducing the Sodium Pertechnetate Tc 99m solution into mixing vials.

  13. Maintain adequate shielding during the life of the radioactive preparation by using a lead vial shield and cover, and use a shielded syringe for withdrawing and injecting the preparation.


ASSAY INSTRUCTIONS FOR THE TechneLite®, TECHNETIUM Tc 99m GENERATOR ELUATE


The TechneLite®, Technetium Tc 99m Generator Eluate may be assayed using an ionization chamber dose calibrator. The manufacturer's instructions for operation of the dose calibrator should be followed for measurement of Technetium Tc 99m and Molybdenum Mo99 activity in the generator eluate. The Molybdenum 99/Technetium 99m ratio should be determined at the time of elution prior to administration, and from that ratio, the expiration time (up to 12 hours) of the eluate mathematically determined. Each eluate should meet or exceed the purity requirements of the current United States Pharmacopeia; that is, not more than 0.0056MBq (0.15 microcurie) of Molybdenum 99 per 37MBq (1 millicurie) of Technetium 99m per administered dose at the time of administration.



RADIOMETRIC MOLYBDENUM TEST PROCEDURE


This method is based on the fact that most Technetium Tc 99m radiation can be readily shielded and only the more energetic gamma rays from Molybdenum Mo99 (739KeV and 778KeV) are counted in the 550-850KeV energy range. The entire eluate may be assayed for Molybdenum Mo99 activity as follows:


  1. A Cesium Cs 137 reference source which has the same geometry as the generator eluate must be used to standardize the well counter.

  2. Determine the background after setting the window to the 550-850KeV energy range.

  3. Count the Technetium Tc 99m eluate in its lead shield (thereby shielding out Technetium Tc 99m) by placing over the well or probe.

  4. Count the Cs 137 reference source in the same shield geometry for the same time period.

  5. Compute Molybdenum Mo99 activity in the eluate as follows:


    μCi Molybdenum      =        μCi simulated Mo99 x net cpm Eluate  

    Mo99 (total)                        net cpm simulated Mo99 reference source

Divide this number by the mCi of Technetium Tc 99m. This result (μCi Mo99/mCi Tc 99m) can be converted to MBq Mo99/MBq Tc 99m by multiplying by 10-3. The U.S. Pharmacopeia and the U.S. Nuclear Regulatory Commission or equivalent Agreement State regulations specify a limit of 0.00015MBq Molybdenum Mo99 per MBq of Technetium Tc 99m (0.15μCi Mo99/mCi Tc 99m) at the time of administration to each patient.



COLORIMETRIC ALUMINUM ION TEST PROCEDURE


Bristol-Myers Squibb Medical Imaging, Inc. offers an Aluminum Ion Indicator Kit as an accessory to permit monitoring the aluminum ion in each eluate. It is based on a colorimetric reaction performed on a paper strip impregnated with indicator. A bottle of aluminum ion standard is included. Complete information is available on request.



DISPOSAL: All components shipped with the TechneLite®, Technetium Tc 99m Generator should be monitored for contamination prior to disposing into routine trash systems. The Technetium Tc 99m should not be disposed of into routine trash systems. The generator should be disposed through a USNRC or Agreement State licensed disposal agency or by a method approved by the appropriate regulatory authority. Spent generators may be returned; complete return instructions are provided regularly with generator shipments and are also available on request.


This radioactive drug is approved for distribution to persons licensed pursuant to the Code of Massachusetts Regulations 105 CMR 120.500 for the uses listed in 105 CMR 120.533 or under equivalent licenses of the U.S. Nuclear Regulatory Commision, an Agreement State or a Licensing State.



Bristol-Myers Squibb

Medical Imaging

331 Treble Cove Road

N. Billerica, MA 01862 USA

For Ordering Call Toll-Free: 800-225-1572 All other business: 800-362-2668

(In Massachusetts and International, call 978-667-9531)


U.S. Patent 5,109,160


Bristol-Myers Squibb

Medical Imaging


Printed in U.S.A.


513160-0205

February 2005








TechneLite 
molybdenum mo-99  injection, solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)11994-090
Route of AdministrationINTRAVENOUSDEA Schedule    








INGREDIENTS
Name (Active Moiety)TypeStrength
Molybdenum Mo-99 (Technetium Tc-99m cation)Active1000 MILLICURIE  In 1 GENERATOR


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      










Packaging
#NDCPackage DescriptionMultilevel Packaging
111994-090-361 GENERATOR In 1 CARTONNone






TechneLite 
molybdenum mo-99  injection, solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)11994-090
Route of AdministrationINTRAVENOUSDEA Schedule    








INGREDIENTS
Name (Active Moiety)TypeStrength
Molybdenum Mo-99 (Technetium Tc-99m cation)Active2000 MILLICURIE  In 1 GENERATOR


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      










Packaging
#NDCPackage DescriptionMultilevel Packaging
111994-090-731 GENERATOR In 1 CARTONNone






TechneLite 
molybdenum mo-99  injection, solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)11994-090
Route of AdministrationINTRAVENOUSDEA Schedule    








INGREDIENTS
Name (Active Moiety)TypeStrength
Molybdenum Mo-99 (Technetium Tc-99m cation)Active2500 MILLICURIE  In 1 GENERATOR


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      










Packaging
#NDCPackage DescriptionMultilevel Packaging
111994-090-921 GENERATOR In 1 CARTONNone






TechneLite 
molybdenum mo-99  injection, solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)11994-090
Route of AdministrationINTRAVENOUSDEA Schedule    








INGREDIENTS
Name (Active Moiety)TypeStrength
Molybdenum Mo-99 (Technetium Tc-99m cation)Active3000 MILLICURIE  In 1 GENERATOR


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      










Packaging
#NDCPackage DescriptionMultilevel Packaging
111994-090-011 GENERATOR In 1 CARTONNone






TechneLite 
molybdenum mo-99  injection, solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)11994-090
Route of AdministrationINTRAVENOUSDEA Schedule    








INGREDIENTS
Name (Active Moiety)TypeStrength
Molybdenum Mo-99 (Technetium Tc-99m cation)Active4000 MILLICURIE  In 1 GENERATOR


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      










Packaging
#NDCPackage DescriptionMultilevel Packaging
111994-090-031 GENERATOR In 1 CARTONNone






TechneLite 
molybdenum mo-99  injection, solution










Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)11994-090
Route of AdministrationINTRAVENOUSDEA Schedule    








INGREDIENTS
Name (Active Moiety)TypeStrength
Molybdenum Mo-99 (Technetium Tc-99m cation)Active4500 MILLICURIE  In 1 GENERATOR


















Product Characteristics
Color    Score    
ShapeSize
FlavorImprint Code
Contains      










Packaging
#NDCPackage DescriptionMultilevel Packaging
111994-090-041 GENERATOR In 1 CARTONNone


TechneLite 
molybdenum mo-99  injection, solution




Product Information
Product TypeHUMAN PRESCRIPTION DRUGNDC Product Code (Source)