- MedlinePlus: Herbs and Supplements
- from MEDLINE Plus,consists of MedMaster™ from the American Society of Health-system Pharmacists and a subset of the Natural Standard Herbs and Supplements.
- Drug Approvals and Databases (FDA)
- Provides a list of drug approvals; updated weekly. Databases include: Adverse Event Reporting System (AERS), Bioresearch Monitoring Information System (BMIS), Clinical Investigator Inspection List (C:IIL), Dissolution Methods Database, Drug Establishments Current Registration Site and National Drug Code Directory.
- NeedyMeds
- This site provides information about patient assistance programs which provide no cost prescription medications to eligible participants. Includes an extensive list of drugs and programs.
- PDR.net®
- This site provides drug information derived from the PDR. Health care professionals must register to get the most extensive information.
- RxList, the internet drug index
