Somatrem, sold under the brand name Protropin, is an analogue of growth hormone (GH).

[1] Somatrem is a recombinant human growth hormone used for the treatment of short stature due to decreased or absent secretion of endogenous growth hormone.

[2] It differs from endogenous growth hormone by the addition of an extra methionine at the N-terminus[3][circular reference].

Somatrem has largely been replaced by somatropin, marketed by several companies including by Genentech as the brand Nutropin.

Antagonists: Pegvisomant This hormonal preparation article is a stub.