Deflazacort is a steroid that is used to treat Duchenne muscular dystrophy in adults and children at least 2 years old.
Deflazacort is not a cure for muscular dystrophy, but deflazacort may improve muscle strength and slow the progression of disability.
Follow all directions on your prescription label and read all medication guides or instruction sheets. Your doctor may occasionally change your dose. Use the medicine exactly as directed.