ramosetron ramosetron ramosetron (inn) is a serotonin 5-ht3 receptor antagonist for the treatment of nausea and vomiting. ramosetron is also indicated for a treatment of "diarrhea-predominant irritable bowel syndrome in male and women". in india it is marketed under the brand name of ibset. ramosetronclinical dataahfs/drugs.cominternational drug namesroutes ofadministrationby mouth (odt), ivatc codenonepharmacokinetic dataelimination half-life5.8 hoursidentifiers iupac name (1-methyl-1h-indol-3-yl)methanone cas number132036-88-5 yhcl: 132907-72-3 ypubchem cid108000iuphar/bps2301hcl: 2305chemspider97112 nunii7zro0sc54yhcl: 9551lhd87e ykeggd02016 nchemblchembl1643895 ncomptox dashboard (epa)dtxsid0043842 chemical and physical dataformulac17h17n3omolar mass279.343 g·mol−13d model (jsmol)interactive image smiles cn1c=c(c2=cc=cc=c21)c(=o)3ccc4=c(c3)nc=n4 inchi inchi=1s/c17h17n3o/c1-20-9-13(12-4-2-3-5-16(12)20)17(21)11-6-7-14-15(8-11)19-10-18-14/h2-5,9-11h,6-8h2,1h3,(h,18,19)/t11-/m1/s1 nkey:nthpapbpfqjabd-llvkdonjsa-n n ny (what is this?) (verify) it is only licensed for use in japan and selected southeast asian countries. in japan it is sold under the trade name irribow. and in india as ibset . 'elsewhere it is commonly sold under the trade name nasea and in india as nozia (150 μg/ml injection & 100 μg oral tablet).