Drug Search - MedLine Plus
Drugs, Supplements, and Herbal Information from U.S. National Library and National Institutes of Health

Drugs.com
New drugs, latest news, drug interactions, pill identification, images, discussion forum

RxList
Keywords, side effects, drug interactions, discussion forums

Club Drugs
MEDLINEplus - Club Drugs: Comprehensive site about drugs most commonly found in the club scene

Herbal / Natural Medications
Extensive library of natural medications from PDR Health

Dietary Supplements
From National Center of Complementary and Alternative Medicine

Medications A - Z
Common psychoactive & related drugs listed A-Z from MedLine Plus and RxList

Medications by Condition
Common psychoactive & related drugs listed by treatment from MedLine Plus and RxList

Street Drugs
Relevant information on street drugs

MedicationSense
Free, objective information that is not available through current sources such as medication package inserts, pharmacy information sheets, the Physicians' Desk Reference (PDR), or medical or consumer drug references.