it is also best known as benadryl

products containing  diphenhydramine:
aleryl, alledryl, aller-med, allerdryl, allergan b, allergeval, allergical, allergin, allergina, allergival, allermax caplets, ambodryl, amidryl, antistominum, antitussive, antomin, automin, bagodryl, banophen, banophen caplets, baramine, beldin, belix, ben-allergin, bena, benachlor, benadrin, benapon, benodin, benodine, benylan, benylin, benzantine, benzhydramine, benzhydraminum, benzhydril, benzhydroamina, benzhydryl, betramin, compoz, dabylen, debendrin, dermistina, dermodrin, desentol, diabenyl, diabylen, dibendrin, dibenil, dibondrin, difedryl, difenhydramin, difenidramina, dihidral, dimedrol, dimedryl, diphantine, diphen, diphen cough, diphenhist, diphenhist captabs, dormarex, dryistan, drylistan, dylamon, etanautine, genahist, histaxin, hyadrine, hydramine, hyrexin, ibiodral, medidryl, mephadryl, nausen, nervine nighttime sleep-aid, novamina, nytol quickcaps, nytol quickgels, probedryl, restamin, rigidil, rigidyl, siladryl, silphen, sleep-eze d, sleep-eze d extra strength, sominex, soverin, syntedril, syntodril, torinal, twilite caplets, unisom sleepgels maximum strength, vena

diphenhydramine hcl, diphenhydramine base, diphenhydramine salicylate, diphenylhydramine, diphenhydramine hydrochloride