Diethylstilbestrol

**Definition:** A synthetic nonsteroidal estrogen used in the treatment of menopausal and postmenopausal disorders. It was also used formerly as a growth promoter in animals. According to the Fourth Annual Report on Carcinogens (NTP 85-002, 1985), diethylstilbestrol has been listed as a known carcinogen. (Merck, 11th ed)

**Tree numbers:** - D02.455.426.559.389.150.700.725.500

**Synonyms:** - Stilbene Estrogen