DrugDigest: Zaleplon ( Sonata )
- Information on dosage, usage, side effects, interactions, and drug comparisons, including generics when available.
- http://www.drugdigest.org/DD/DVH/Uses/0,3915,745%7CSonata,00.html

MEDLINEplus: Zaleplon
- Features information about dosage, usage, warnings, and side effects.
- http://www.nlm.nih.gov/medlineplus/druginfo/medmaster/a601251.html

Sonata
- Full prescribing information from RxList.
- http://www.rxlist.com/cgi/generic3/zaleplon.htm