mizolastine mizolastine mizolastine (mizollen) is a once-daily, non-sedating antihistamine. it blocks h1 receptors and is commonly fast-acting. it does not prevent the actual release of histamine from mast cells, it only prevents histamine from binding to receptors. side effects can include dry mouth and throat. mizolastineclinical dataahfs/drugs.cominternational drug namesroutes ofadministrationby mouth (tablets)atc coder06ax25 (who) legal statuslegal status uk: pom (prescription only) identifiers iupac name 2-piperidin-4-yl}(methyl)amino]pyrimidin-4(1h)-one cas number108612-45-9 ypubchem cid65906chemspider59315 nunii244o1f90nakeggd01117 ychemblchembl94454 ncomptox dashboard (epa)dtxsid5046801 echa infocard100.149.406 chemical and physical dataformulac24h25fn6omolar mass432.503 g·mol−13d model (jsmol)interactive image smiles cn(c1ccn(cc1)c2=nc3=cc=cc=c3n2cc4=cc=c(c=c4)f)c5=nc=cc(=o)n5 inchi inchi=1s/c24h25fn6o/c1-29(23-26-13-10-22(32)28-23)19-11-14-30(15-12-19)24-27-20-4-2-3-5-21(20)31(24)16-17-6-8-18(25)9-7-17/h2-10,13,19h,11-12,14-16h2,1h3,(h,26,28,32) nkey:pvljetxttwayew-uhfffaoysa-n n ny (what is this?) (verify)