Defcort 18 Tablet is used to treat Duchene muscular dystrophy in adults and children above 2 years of age. It contains Deflazacort, which binds to immune cells, resulting in the inhibition of inflammation and autoimmune diseases that occur due to the production of chemicals called cytokines responsible for inflammation. It makes organ transplantation possible and treats muscle disorders like Duchenne muscular dystrophy. Some people may experience side effects such as nausea, chest pain, vomiting, drowsiness, headache, dizziness, skin rash, tremors, nervousness, diarrhoea and fast heartbeats. Before taking this medicine, you should tell your doctor if you are allergic to any of its components or if you are pregnant/breastfeeding, and about all the medications you are taking and pre-existing medical conditions.