naratriptan [ Amerge,Colatan,Faes brand of naratriptan hydrochloride,Glaxo Wellcome brand of naratriptan hydrochloride,GlaxoSmithKline brand of naratriptan hydrochloride,N-methyl-3-(1-methyl-4-piperidinyl)-1H-indole-5-ethanesulfonamide,Naramig,Schwarz brand of naratriptan hydrochloride,naratriptan hydrochloride ] structure given in first source