These websites provide information on the side effects of prescription drugs:
- DailyMed (United States)
- Department of Health: Therapeutics Goods Administration (Australia)
- Drugs.com (United States)
- Electronic Medicines Compendium (United Kingdom)
- European Medicines Agency (European Union)
- Food and Drug Administration – FDA (United States)
- Health Canada (Canada)
- Medline Plus (United States)
- Medsafe (New Zealand)
- Medicine and Healthcare products Regulatory Agency – MHRA (United Kingdom)
- RxISK (International)
- Worst Pills, Best Pills (United States)
