Imitrex
- Product information for US residents in PDF format. [Acrobat Reader required]
- http://www.gsk.com/products/prescription_medicines/us/imitrex.htm

DrugDigest: Sumatriptan ( Imitrex )
- Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,633%7CImitrex,00.html

Sumatriptan
- Information from the RxList.
- http://www.rxlist.com/cgi/generic/sumitr.htm