mebhydrolin mebhydrolin mebhydrolin (inn) or mebhydroline is an antihistamine. it is not available in the united states, but it is in various other countries under the brand names bexidal (bd) and diazolin (ru). it is used for symptomatic relief of allergic symptoms caused by histamine release, including nasal allergies and allergic dermatosis. mebhydrolinclinical dataother names9-benzyl-2-methyl-2,3,4,9-tetrahydro-1h-gamma-carboline, incidal, omeril, diazolin, fabahistin, mebhydrolin napadisylate, mebhydroline 1,5-naphthalenedisulfonateahfs/drugs.cominternational drug namespregnancycategory not established routes ofadministrationoralatc coder06ax15 (who) legal statuslegal status in general: ℞ (prescription only) identifiers iupac name 5-benzyl-2-methyl-3,4-dihydro-1h-pyridoindole cas number524-81-2 y 6153-33-9 (1,5-naphthalenedisulfonate salt)pubchem cid22530chemspider21129 yunii9suk9b7xvykeggd08161 ycomptox dashboard (epa)dtxsid5048558 echa infocard100.007.606 chemical and physical dataformulac19h20n2molar mass276.383 g·mol−13d model (jsmol)interactive image smiles cn3cc4c1ccccc1n(cc2ccccc2)c4cc3 inchi inchi=1s/c19h20n2/c1-20-12-11-19-17(14-20)16-9-5-6-10-18(16)21(19)13-15-7-3-2-4-8-15/h2-10h,11-14h2,1h3 ykey:fqqiipaosksojm-uhfffaoysa-n y ny (what is this?) (verify) mebhydrolin has been shown to magnify the performance-deficit effects of alcohol.