Flazart 6mg Tablets 30'sFlazart 6mg is a brand name for deflazacort, a prescription corticosteroid medication used to treat a wide range of inflammatory, allergic, and autoimmune conditions. It works by decreasing the production of inflammatory chemicals and suppressing overactive responses from your body's immune system. Primary Medical Uses Inflammatory Conditions: Reduces severe swelling and pain in chronic conditions like rheumatoid arthritis and ankylosing spondylitis.