H. Schworer et al., TREATMENT OF DIARRHEA IN CARCINOID-SYNDROME WITH ONDANSETRON, TROPISETRON, AND CLONIDINE, The American journal of gastroenterology, 90(4), 1995, pp. 645-648
A 69-yr-old man with known carcinoid syndrome treated with octreotide
and interferon-alpha(2b) developed diarrhea, with six to eight watery
to semiliquid stools per day. Diminished stool frequency and increased
stool consistency were obtained by treatment with the 5-hydroxytrypta
mine-3 receptor antagonists ondansetron and tropisetron, Successful al
leviation of the diarrhea was also observed with the alpha 2-receptor
agonist clonidine, These observations indicate that these classes of d
rugs should be evaluated in a controlled trial in patients with carcin
oid-associated diarrhea.