Medrol Methylprednisolone Tablets

1. Indications and Usage
Allergic & Autoimmune: Treatment of severe allergic and autoimmune diseases, including rheumatoid arthritis, systemic lupus erythematosus, and dermatomyositis.
Severe Allergic: Management of severe bronchial asthma, seasonal allergic rhinitis, and drug hypersensitivity.
Transplant: Prevention and treatment of organ transplant rejection.
Endocrine: Treatment of primary or secondary adrenal insufficiency.
2. Dosage and Administration
Adults: Dosage varies widely based on disease severity, typically ranging from 4 mg to 48 mg daily.
Administration: Can be taken with food to minimize gastrointestinal irritation.
Withdrawal: Long-term use must be tapered gradually to avoid acute adrenal insufficiency.
3. Mechanism of Action
Anti-inflammatory: Binds to cytosolic glucocorticoid receptors, modulating gene expression to inhibit inflammatory mediators.
Immunosuppressive: Inhibits immune cell proliferation and antibody synthesis.
4. Safety and Warnings
Adrenal Suppression: High doses or prolonged use suppress the hypothalamic-pituitary-adrenal (HPA) axis.
Infection Risk: Increases susceptibility to infections and may reactivate latent tuberculosis.
Gastrointestinal: Can exacerbate or cause peptic ulcers and gastrointestinal bleeding.
Metabolic: May induce hyperglycemia, fluid retention, and hypertension.
5. Adverse Reactions and Clinical Research
Common: Weight gain, mood changes, insomnia, and increased appetite.
Long-term: Osteoporosis, cataracts, glaucoma, and muscle wasting.
Clinical Research: Pivotal trials have established its efficacy in rapidly controlling acute autoimmune flares and preventing transplant rejection.
6. Drug Interactions
NSAIDs: Concomitant use increases the risk of gastrointestinal ulceration and bleeding.
CYP3A4 Inducers: Rifampin or phenytoin may decrease methylprednisolone plasma levels.
CYP3A4 Inhibitors: Ketoconazole or ritonavir may increase toxicity.
Vaccines: Live vaccines may cause severe infections in immunosuppressed patients.
7. Pharmaceutical Information
Active Ingredient: Methylprednisolone.
Excipients: Lactose monohydrate, microcrystalline cellulose, starch, magnesium stearate.
Appearance: White or off-white tablets.
Storage: Store at controlled room temperature, protected from light.