timepidium bromide timepidium bromide timepidium bromide (inn) is an anticholinergic. it is used in the symptomatic treatment of visceral spasms. it is also used to relieve pain associated with various gastrointestinal disorders. the quaternary nitrogen prevents it from crossing the blood brain barrier, so it is peripherally acting with no central side effects. timepidium bromideclinical dataahfs/drugs.cominternational drug namesroutes ofadministrationsc, im, ivatc codea03ab19 (who) legal statuslegal status in general: ℞ (prescription only) identifiers iupac name 3-(di-2-thienylmethylene)-5-methoxy-1,1-dimethylpiperidinium bromide cas number35035-05-3 ypubchem cid160243chemspider140841 nunii8r9e4766v4comptox dashboard (epa)dtxsid4023672 chemical and physical dataformulac17h22brnos2molar mass400.39 g·mol−13d model (jsmol)interactive image smiles c1(cc(cc(=c(c2=cc=cs2)c3=cc=cs3)c1)oc)c. inchi inchi=1s/c17h22nos2.brh/c1-18(2)11-13(10-14(12-18)19-3)17(15-6-4-8-20-15)16-7-5-9-21-16;/h4-9,14h,10-12h2,1-3h3;1h/q+1;/p-1 nkey:qtsxmepzshlzff-uhfffaoysa-m n ny (what is this?) (verify) the same compound sans the quaternary methyl group and the methoxy ether is called tipepidine.