Pregnant Mare Serum Gonadotropin

**Semantic type:** Amino Acid, Peptide, or Protein|Pharmacologic Substance

**Definition:** A polypeptide hormone isolated from the equine placenta. In animals, the activity of pregnant mare serum gonadotropin is similar to that of follicle-stimulating hormone; in humans, this agent is relatively ineffective. This agent is used in veterinary medicine to stimulate ovulation. (NCI04)

**Synonyms:** - Equine Chorionic Gonadotropin - Equine gonadotropin - PMSG - eCG