<unk>  is a serotonergic analog that is FDA approved for the treatment of IBS with constipation, chronic idiopathic constipation.   Common adverse reactions include abdominal pain, diarrhea, flatulence, nausea, headache.
Tegaserod
Pegvisomant
Lansoprazole
Nepafenac
Ioxaglic acid
Metolcarb
Hexetidine
Nizatidine