clofazimine

noun1

1. •
   A reddish brown fat-soluble powdered dye C₂₇H₂₂Cl₂N₄ that is a derivative of riminophenazine used especially to treat lepromatous leprosy.

   • Another drug, clofazimine, used more than a century ago to treat leprosy, may be effective against autoimmune disorders like multiple sclerosis and psoriasis. — 2009