Ahmed Hegazy (also: Hegasy; Arabic أحمد حجازي, Aḥmad Ḥiǧāzī, born October 24, 1939, in Cairo; died February 5, 2021, in Leverkusen) was an Egyptian-German pharmacist. He conducted research in the Pharmaceutical Technology Department of Bayer from 1966 to 1999, during which time he invented a new galenic formulation for the active components nifedipine and nimodipine.[1][medical citation needed] By blocking calcium channels, the substance has a relaxing effect on vascular muscles and is therefore used for the treatment of hypertension.[medical citation needed] In 1991, Hegazy received the Otto Bayer Medal for the solubilization of poorly soluble ingredients such as nimodipine.[medical citation needed] His galenic invention is still the basis for many modern formulations at Bayer AG (A. Ohm).[medical citation needed]