Amerge: Product information from Glaxo Wellcome, in Portable Document Format (PDF). (naratriptan hydrochloride)Amerge: Full prescribing information from RxList.Amerge Consumer Information - FDA: Consumer FAQ in html format with a link to approved labeling in pdf format.DrugDigest: Naratriptan ( Amerge ): Information on dosage, usage, side effects, interactions, and drug comparisons including generics when available.