Each ampoule of Stilamin contains: Somatostatin 3.0 mg*; D-Mannitol (excipient) 5.0 mg.
* Corresponding to 3.6 mg of somatostatin acetate.
Ampoules of Stilamin (Somatostatin Serono) contain synthetic somatostatin (as the acetate) as a white, freeze-dried, sterile and pyrogen-free powder.