Methylprednisolone

INDICATIONS AND USAGE Methylprednisolone tablets are indicated in the following conditions: 1. Endocrine Disorders Primary or secondary adrenocortical insufficiency (hydrocortisone or cortisone is the first choice; synthetic analogs may be used in conjunction with mineralocorticoids where applicable; in infancy, mineralocorticoid supplementation is of particular importance). Congenital adrenal hyperplasia Nonsuppurative thyroiditis Hypercalcemia associated with cancer 2. Rheumatic Disorders As adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in: Rheumatoid arthritis, including juvenile rheumatoid arthritis (selected cases may require low-dose maintenance therapy) Ankylosing spondylitis Acute and subacute bursitis Synovitis of osteoarthritis Acute nonspecific tenosynovitis Post-traumatic osteoarthritis Psoriatic arthritis Epicondylitis Acute gouty arthritis 3. Collagen Diseases During an exacerbation or as maintenance therapy in selected cases of: Systemic lupus erythematosus Systemic dermatomyositis (polymyositis) Acute rheumatic carditis 4. Dermatologic Diseases Bullous dermatitis herpetiformis Severe erythema multiforme (Stevens-Johnson syndrome) Severe seborrheic dermatitis Exfoliative dermatitis Mycosis fungoides Pemphigus Severe psoriasis 5. Allergic States Control of severe or incapacitating allergic conditions intractable to adequate trials of conventional treatment: Seasonal or perennial allergic rhinitis Drug hypersensitivity reactions Serum sickness Contact dermatitis Bronchial asthma Atopic dermatitis 6. Ophthalmic Diseases Severe acute and chronic allergic and inflammatory processes involving the eye and its adnexa, such as: Allergic corneal marginal ulcers Herpes zoster ophthalmicus Anterior segment inflammation Diffuse posterior uveitis and choroiditis Sympathetic ophthalmia Keratitis Optic neuritis Allergic conjunctivitis Chorioretinitis Iritis and iridocyclitis 7. Respiratory Diseases Symptomatic sarcoidosis Berylliosis Loeffler's syndrome not manageable by other means Fulminating or disseminated pulmonary tuberculosis when used concurrently with appropriate antituberculous chemotherapy Aspiration pneumonitis 8. Hematologic Disorders Idiopathic thrombocytopenic purpura in adults Secondary thrombocytopenia in adults Acquired (autoimmune) hemolytic anemia Erythroblastopenia (RBC anemia) Congenital (erythroid) hypoplastic anemia 9. Neoplastic Diseases For palliative management of: Leukemias and lymphomas in adults Acute leukemia of childhood 10. Edematous States To induce a diuresis or remission of proteinuria in the nephrotic syndrome, without uremia, of the idiopathic type or that due to lupus erythematosus. 11. Gastrointestinal Diseases To tide the patient over a critical period of the disease in: Ulcerative colitis Regional enteritis 12. Nervous System Acute exacerbations of multiple sclerosis 13. Miscellaneous Tuberculous meningitis with subarachnoid block or impending block when used concurrently with appropriate antituberculous chemotherapy. Trichinosis with neurologic or myocardial involvement.

DOSAGE AND ADMINISTRATION The initial dosage of methylprednisolone tablets may vary from 4 mg to 48 mg of methylprednisolone per day, depending on the specific disease entity being treated. In situations of less severity, lower doses will generally suffice, while in selected patients, higher initial doses may be required. The initial dosage should be maintained or adjusted until a satisfactory response is noted. If after a reasonable period of time there is a lack of satisfactory clinical response, methylprednisolone tablets should be discontinued and the patient transferred to other appropriate therapy. IT SHOULD BE EMPHASIZED THAT DOSAGE REQUIREMENTS ARE VARIABLE AND MUST BE INDIVIDUALIZED ON THE BASIS OF THE DISEASE UNDER TREATMENT AND THE RESPONSE OF THE PATIENT . After a favorable response is noted, the proper maintenance dosage should be determined by decreasing the initial drug dosage in small decrements at appropriate time intervals until the lowest dosage which will maintain an adequate clinical response is reached. It should be kept in mind that constant monitoring is needed in regard to drug dosage. Included in the situations which may make dosage adjustments necessary are changes in clinical status secondary to remissions or exacerbations in the disease process, the patient's individual drug responsiveness, and the effect of patient exposure to stressful situations not directly related to the disease entity under treatment; in this latter situation, it may be necessary to increase the dosage of methylprednisolone tablets for a period of time consistent with the patient's condition. If after long-term therapy the drug is to be stopped, it is recommended that it be withdrawn gradually rather than abruptly. Multiple Sclerosis: In treatment of acute exacerbations of multiple sclerosis, daily doses of 200 mg of prednisolone for a week followed by 80 mg every other day for 1 month have been shown to be effective (4 mg of methylprednisolone is equivalent to 5 mg of prednisolone). Alternate Day Therapy: Alternate day therapy is a corticosteroid dosing regimen in which twice the usual daily dose of corticoid is administered every other morning. The purpose of this mode of therapy is to provide the patient requiring long-term pharmacologic dose treatment with the beneficial effects of corticoids while minimizing certain undesirable effects, including pituitary-adrenal suppression, the Cushingoid state, corticoid withdrawal symptoms, and growth suppression in children. The rationale for this treatment schedule is based on two major premises: (a) the anti-inflammatory or therapeutic effect of corticoids persists longer than their physical presence and metabolic effects and (b) administration of the corticosteroid every other morning allows for reestablishment of more nearly normal hypothalamic-pituitary-adrenal (HPA) activity on the off-steroid day. A brief review of the HPA physiology may be helpful in understanding this rationale. Acting primarily through the hypothalamus, a fall in free cortisol stimulates the pituitary gland to produce increasing amounts of corticotropin (ACTH) while a rise in free cortisol inhibits ACTH secretion. Normally, the HPA system is characterized by diurnal (circadian) rhythm. Serum levels of ACTH rise from a low point at about 10 pm to a peak level at about 6 am. Increasing levels of ACTH stimulate adrenal cortical activity resulting in a rise in plasma cortisol with maximal levels occurring between 2 am and 8 am. This rise in cortisol dampens ACTH production and in turn adrenal cortical activity. There is a gradual fall in plasma corticoids during the day with lowest levels occurring about midnight. The diurnal rhythm of the HPA axis is lost in Cushing's disease, a syndrome of adrenal cortical hyperfunction characterized by obesity with centripetal fat distribution, thinning of the skin with easy bruisability, muscle wasting with weakness, hypertension, latent diabetes, osteoporosis, electrolyt…

WARNINGS In patients on corticosteroid therapy subjected to unusual stress, increased dosage of rapidly acting corticosteroids before, during, and after the stressful situation is indicated. Immunosuppression and Increased Risk of Infection Corticosteroids, including methylprednisolone, suppress the immune system and increase the risk of infection with any pathogen, including viral, bacterial, fungal, protozoan, or helminthic pathogens. Corticosteroids can: • Reduce resistance to new infections • Exacerbate existing infections • Increase the risk of disseminated infections • Increase the risk of reactivation or exacerbation of latent infections • Mask some signs of infection Corticosteroid-associated infections can be mild but can be severe and at times fatal. The rate of infectious complications increases with increasing corticosteroid dosages. Monitor for the development of infection and consider methylprednisolone withdrawal or dosage reduction as needed. Tuberculosis If methylprednisolone is used to treat a condition in patients with latent tuberculosis or tuberculin reactivity, reactivation of tuberculosis may occur. Closely monitor such patients for reactivation. During prolonged methylprednisolone therapy, patients with latent tuberculosis or tuberculin reactivity should receive chemoprophylaxis. Varicella Zoster and Measles Viral Infections Varicella and measles can have a serious or even fatal course in non-immune patients taking corticosteroids, including methylprednisolone. In corticosteroid-treated patients who have not had these diseases or are non-immune, particular care should be taken to avoid exposure to varicella and measles: • If a methylprednisolone-treated patient is exposed to varicella, prophylaxis with varicella zoster immune globulin may be indicated. If varicella develops, treatment with antiviral agents may be considered. • If a methylprednisolone-treated patient is exposed to measles, prophylaxis with immunoglobulin may be indicated. Hepatitis B Virus Reactivation Hepatitis B virus reactivation can occur in patients who are hepatitis B carriers treated with immunosuppressive dosages of corticosteroids, including methylprednisolone. Reactivation can also occur infrequently in corticosteroid-treated patients who appear to have resolved hepatitis B infection. Screen patients for hepatitis B infection before initiating immunosuppressive (e.g., prolonged) treatment with methylprednisolone. For patients who show evidence of hepatitis B infection, recommend consultation with physicians with expertise in managing hepatitis B regarding monitoring and consideration for hepatitis B antiviral therapy. Fungal Infections Corticosteroids, including methylprednisolone, may exacerbate systemic fungal infections; therefore, avoid methylprednisolone use in the presence of such infections unless methylprednisolone is needed to control drug reactions. For patients on chronic methylprednisolone therapy who develop systemic fungal infections, methylprednisolone withdrawal or dosage reduction is recommended. Amebiasis Corticosteroids, including methylprednisolone, may activate latent amebiasis. Therefore, it is recommended that latent amebiasis or active amebiasis be ruled out before initiating methylprednisolone in patients who have spent time in the tropics or patients with unexplained diarrhea. Strongyloides Infestation Corticosteroids, including methylprednisolone, should be used with great care in patients with known or suspected Strongyloides (threadworm) infestation. In such patients, corticosteroid-induced immunosuppression may lead to Strongyloides hyperinfection and dissemination with widespread larval migration, often accompanied by severe enterocolitis and potentially fatal gram-negative septicemia. Cerebral Malaria Avoid corticosteroids, including methylprednisolone, in patients with cerebral malaria. Ophthalmic Effects Prolonged use of corticosteroids may produce posterior subcapsular cataracts, glaucoma with…

CONTRAINDICATIONS Systemic fungal infections and known hypersensitivity to components.

Drug Interactions The pharmacokinetic interactions listed below are potentially clinically important. Mutual inhibition of metabolism occurs with concurrent use of cyclosporine and methylprednisolone; therefore, it is possible that adverse events associated with the individual use of either drug may be more apt to occur. Convulsions have been reported with concurrent use of methylprednisolone and cyclosporine. Drugs that induce hepatic enzymes such as phenobarbital, phenytoin, and rifampin may increase the clearance of methylprednisolone and may require increases in methylprednisolone dose to achieve the desired response. Drugs such as troleandomycin and ketoconazole may inhibit the metabolism of methylprednisolone and thus decrease its clearance. Therefore, the dose of methylprednisolone should be titrated to avoid steroid toxicity. Methylprednisolone may increase the clearance of chronic high-dose aspirin. This could lead to decreased salicylate serum levels or increase the risk of salicylate toxicity when methylprednisolone is withdrawn. Aspirin should be used cautiously in conjunction with corticosteroids in patients suffering from hypoprothrombinemia. The effect of methylprednisolone on oral anticoagulants is variable. There are reports of enhanced as well as diminished effects of anticoagulants when given concurrently with corticosteroids. Therefore, coagulation indices should be monitored to maintain the desired anticoagulant effect.

Usage in Pregnancy Since adequate human reproduction studies have not been done with corticosteroids, the use of these drugs in pregnancy, nursing mothers or women of child-bearing potential requires that the possible benefits of the drug be weighed against the potential hazards to the mother and embryo or fetus. Infants born of mothers who have received substantial doses of corticosteroids during pregnancy, should be carefully observed for signs of hypoadrenalism.

ADVERSE REACTIONS Fluid and Electrolyte Disturbances • Sodium retention • Congestive heart failure in susceptible patients • Hypertension • Fluid retention • Potassium loss • Hypokalemic alkalosis Musculoskeletal • Muscle weakness • Loss of muscle mass • Steroid myopathy • Osteoporosis • Tendon rupture, particularly of the Achilles tendon • Vertebral compression fractures • Aseptic necrosis of femoral and humeral heads • Pathologic fracture of long bones Gastrointestinal • Peptic ulcer with possible perforation and hemorrhage • Pancreatitis • Abdominal distention • Ulcerative esophagitis 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 reversible upon discontinuation. Dermatologic • Impaired wound healing • Petechiae and ecchymoses • May suppress reactions to skin tests • Thin fragile skin • Facial erythema • Increased sweating Neurological • Increased intracranial pressure with papilledema (pseudo-tumor cerebri), usually after treatment • Convulsions • Vertigo • Headache Endocrine • Development of Cushingoid state • Suppression of growth in children • Secondary adrenocortical and pituitary unresponsiveness, particularly in times of stress, as in trauma, surgery, or illness • Menstrual irregularities • Decreased carbohydrate tolerance • Manifestations of latent diabetes mellitus • Increased requirements of insulin or oral hypoglycemic agents in diabetics Ophthalmic • Posterior subcapsular cataracts • Increased intraocular pressure • Glaucoma • Exophthalmos Metabolic • Negative nitrogen balance due to protein catabolism Vascular • Flushing The following additional reactions have been reported following oral as well as parenteral therapy: Urticaria and other allergic, anaphylactic, or hypersensitivity reactions.