Prednisone is a corticosteroid (cortisone-like medicine or steroid). It works on the immune system to help relieve swelling, redness, itching, and allergic reactions. This medicine is available only with your doctor's prescription. Prednisone is a steroid medication that treats a wide range of health conditions including asthma, allergic reactions, arthritis and inflammatory bowel disease. Prednisone oral tablet is a prescription steroid that treats various conditions involving inflammation. Learn about uses, side effects, and more. Prednisone is a prescription corticosteroid (steroid) used to reduce inflammation, suppress an overactive immune system, and treat endocrine and metabolic disorders. Overview: Prednisone is used to treat a variety of inflammatory, autoimmune, and hormonal conditions. It works by suppressing the body’s immune response and reducing inflammation. Common side. Prednisone is a prescription medication used most commonly to treat a variety of common diseases and conditions including acute asthma, rheumatic disorders, more. Learn about side effects, drug interactions, dosages, warnings, and more. Prednisone is in a class of medications called corticosteroids. It works to treat patients with low levels of corticosteroids by replacing steroids that are normally produced naturally by the body. Learn about the side effects of prednisone, from common to rare, for consumers and healthcare professionals. Prednisone is a glucocorticoid medication mostly used to suppress the immune system and decrease inflammation in conditions such as asthma, COPD, and rheumatologic diseases. [3] Learn about cost, uses, and more for prednisone. It’s a generic prescription tablet that treats inflammatory and autoimmune conditions in adults and children.