MATCORT-6 tablet is indeed used in the treatment of Duchenne muscular dystrophy (DMD). Duchenne muscular dystrophy is a rare genetic disorder characterized by the absence of the protein dystrophin, leading to progressive muscle degeneration. Deflazacort, a corticosteroid, is prescribed to help manage symptoms and slow down the progression of the disease by reducing inflammation and suppressing the immune response. It is particularly used in children and young adults diagnosed with Duchenne muscular dystrophy.