Methylprednisolone, sold under the brand names Depo-Medrol and Solu-Medrol among others, is a corticosteroid medication used to suppress the immune system and decrease inflammation. Conditions in which it is used include skin diseases, rheumatic disorders, allergies, asthma, croup, COPD, certain cancers, multiple sclerosis, and as add-on therapy for tuberculosis. It is given by mouth or by injection into a vein or muscle.