Abiraterone

**Semantic type:** Pharmacologic Substance

**Definition:** A steroidal compound with antiandrogen activity. Abiraterone inhibits the enzymatic activity of steroid 17alpha-monooxygenase (17alpha-hydrolase/C17,20 lyase complex; CYP17A1), a member of the cytochrome p450 family that catalyzes the 17alpha-hydroxylation of steroid intermediates involved in testosterone synthesis. Administration of this agent may suppress testosterone production by both the testes and the adrenals to castrate-range levels.

**Synonyms:** - 17-(3-Pyridyl)androsta-5,16-dien-3beta-ol - ABIRATERONE - CB 7598