What is "pegvisomant"

n. A growth hormone receptor antagonist used in the treatment of acromegaly.

Pegvisomant (trade name Somavert) is a growth hormone receptor antagonist used in the treatment of acromegaly. It is used if the tumor of the pituitary gland causing the acromegaly cannot be controlled with surgery or radiation, and the use of somatostatin analogues is unsuccessful. It is delivered as a powder that is mixed with water and injected under the skin.