METHYLPREDNISOLONE ACETATE — methylprednisolone acetate injection, suspension
Physicians Total Care, Inc.
Single-Dose Vial Not For Intravenous Use
Methylprednisolone acetate injectable suspension USP is an anti-inflammatory glucocorticoid for intramuscular, intra-articular, soft tissue or intralesional injection. It is available as single-dose vials in two strengths: 40 mg/mL; 80 mg/mL.
Each mL of these preparations contains:
Methylprednisolone acetate USP ………………………………40 mg………….80 mg
Polyethylene glycol 3350 …………………………………………29 mg ………….28 mg
Myristyl-gamma-picolinium chloride…………………….0.195 mg ……..0.189 mg
Sodium Chloride was added to adjust tonicity.
When necessary, pH was adjusted with sodium hydroxide and/or hydrochloric acid.
The pH of the finished product remains within the USP specified range; e.g., 3 to 7.
The chemical name for methylprednisolone acetate is pregna-1,4-diene-3,20-dione, 21-(acetyloxy)-11,17-dihydroxy-6-methyl-,(6α,11β). The structural formula is represented below:
C24 H32 O6 M.W. 416.51
Methylprednisolone acetate injectable suspension USP contains methylprednisolone acetate USP which is the 6-methyl derivative of prednisolone. Methylprednisolone acetate USP is a white or practically white, odorless, crystalline powder which melts at about 215° with some decomposition. It is soluble in dioxane, sparingly soluble in acetone, in alcohol, in chloroform, and in methanol, and slightly soluble in ether. It is practically insoluble in water.
Glucocorticoids, naturally occurring and synthetic, are adrenocortical steroids.
Naturally occurring glucocorticoids (hydrocortisone and cortisone), which also have salt retaining properties, are used in replacement therapy in adrenocortical deficiency states. Their synthetic analogs are used primarily for their anti-inflammatory effects in disorders of many organ systems.
When oral therapy is not feasible and the strength, dosage form, and route of administration of the drug reasonably lend the preparation to the treatment of the condition, the intramuscular use of methylprednisolone acetate injectable suspension USP is indicated as follows:
Control of severe or incapacitating allergic conditions intractable to adequate trials of conventional treatment in asthma, atopic dermatitis, contact dermatitis, drug hypersensitivity reactions, seasonal or perennial allergic rhinitis, serum sickness, transfusion reactions.
Bullous dermatitis herpetiformis, exfoliative dermatitis, mycosis fungoides, pemphigus, severe erythema multiforme (Stevens-Johnson syndrome).
Primary or secondary adrenocortical insufficiency (hydrocortisone or cortisone is the drug of choice; synthetic analogs may be used in conjunction with mineralocorticoids where applicable; in infancy, mineralocorticoid supplementation is of particular importance), congenital adrenal hyperplasia, hypercalcemia associated with cancer, nonsupportive thyroiditis.
To tide the patient over a critical period of the disease in regional enteritis (systemic therapy), ulcerative colitis.
Acquired (autoimmune) hemolytic anemia, congenital (erythroid) hypoplastic anemia (Diamond blackfan anemia), pure red cell aplasia, select cases of secondary thrombocytopenia.
Trichinosis with neurologic or myocardial involvement, tuberculous meningitis with subarachnoid block or impending block when used concurrently with appropriate antituberculous chemotherapy.
For palliative management of: leukemias and lymphomas.
Acute exacerbations of multiple sclerosis. Cerebral edema associated with primary or metastatic brain tumor or craniotomy.
Sympathetic opthalmia, temporal arteritis, uveitis, and ocular inflammatory conditions unresponsive to topical corticosteroids.
To induce diuresis or remission of proteinuria in idiopathic nephrotic syndrome, or that due to lupus erythematosus.
Berylliosis, symptomatic sarcoidosis, fulminating or disseminated pulmonary tuberculosis when used concurrently with appropriate antituberculous chemotherapy, idiopathic eosinophilic pneumonias, symptomatic sarcoidosis.
As adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in acute gouty arthritis, acute rheumatic carditis, ankylosing spondylitis, psoriatic arthritis, rheumatoid arthritis, including juvenile rheumatoid arthritis (selected cases may require low-dose maintenance therapy). For the treatment of dermatomyositis, polymyositis, and systemic lupus erythematosus.
Methylprednisolone acetate injectable suspension USP is indicated as adjunctive therapy for short-term administration (to tide the patient over an acute episode or exacerbation) in acute gouty arthritis, acute and subacute bursitis, acute nonspecific tenosynovitis, epicondylitis, rheumatoid arthritis, synovitis of osteoarthritis.
Methylprednisolone acetate injectable suspension USP is indicated for intralesional use in alopecia areata, discoid lupus erythematosus; keloids, localized hypertrophic, infiltrated inflammatory lesions of granuloma annulare, lichen planus, lichen simplex chronicus (neurodermatitis) and psoriatic plaques; necrobiosis lipoidica diabeticorum.
Methylprednisolone acetate injectable suspension USP also may be useful in cystic tumors of an aponeurosis or tendon (ganglia).
Methylprednisolone acetate injectable suspension USP is contraindicated in patients with known hypersensitivity to the product and its constituents.
Intramuscular corticosteroid preparations are contraindicated for idiopathic thrombocytopenic purpura.
Methylprednisolone acetate injectable suspension USP is contraindicated for intrathecal administration. This formulation of methylprednisolone acetate has been associated with reports of severe medical events when administered by this route.
Methylprednisolone acetate injectable suspension USP is contraindicated in systemic fungal infections, except when administered as an intra-articular injection for localized joint conditions (see WARNINGS , Infections, Fungal Infections).
This product is not suitable for multi-dose use. Following administration of the desired dose, any remaining suspension should be discarded.
Injection of methylprednisolone acetate injectable suspension USP may result in dermal and/or subdermal changes forming depressions in the skin at the injection site.
In order to minimize the incidence of dermal and subdermal atrophy, care must be exercised not to exceed recommended doses in injections. Multiple small injections into the area of the lesion should be made whenever possible. The technique of intra-articular and intramuscular injection should include precautions against injection or leakage into the dermis. Injection into the deltoid muscle should be avoided because of a high incidence of subcutaneous atrophy.
It is critical that, during administration of methylprednisolone acetate injectable suspension USP, appropriate technique be used and care taken to assure proper placement of drug.
Rare instances of anaphylactoid reactions have occurred in patients receiving corticosteroid therapy (see ADVERSE REACTIONS).
Increased dosage of rapidly acting corticosteroids is indicated in patients on corticosteroid therapy subjected to any unusual stress before, during, and after the stressful situation.
Results from one multicenter, randomized, placebo controlled study with methylprednisolone hemisuccinate, an IV corticosteroid, showed an increase in early (at 2 weeks) and late (at 6 months) mortality in patients with cranial trauma who were determined not to have other clear indications for corticosteroid treatment. High doses of systemic corticosteroids, including methylprednisolone acetate injectable suspension USP, should not be used for the treatment of traumatic brain injury.
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