High-quality information about marketed drugs, including medication content and labeling as found in medication package inserts, from the National Library of Medicine.
Drug Information Portal
Gateway to information on over 17,000 drugs from the National Library of Medicine and other government agencies.
MedlinePlus: Drugs, Supplements, and Herbal Information
Information geared towards the public on prescription drugs, herbs and supplements from the National Library of Medicine. Información en español.
A system for pill identification based on physical characteristics from the National Library of Medicine.
Physician's Desk Reference online. Mobile apps also available