Drug Digest: Drug Interactions Tool - http://www.drugdigest.org/DD/Interaction/ChooseDrugs/1,4109,,00.html
A drug interaction tool for looking up potential interactions between two or more drugs. Put a "check" in the box under the Interaction List and you can check for potential drug interactions with food as well. Site provided by Express Scripts, Inc.
MEDLINEplus link to Drug Information - http://www.nlm.nih.gov/medlineplus/druginformation.html
Browse alphabetical lists by first letter of drug name; use brand or generic name.