- U.S. Food and Drug Administrationwww.fda.gov
- Safe Medicationwww.safemedication.com
- American Society of Health-System Pharmacistswww.ashp.org
- National Association of Boards of Pharmacywww.nabp.net
- ConsumerMedSafety.orgwww.consumermedsafety.org
- Institute for Safe Medication Practiceswww.ismp.org
- Drugs.com | Prescription Drug Information, Interactions & Side Effectswww.drugs.com
- RxList.com – The Internet Drug Index for prescription drug information, interactions, and side effectswww.rxlist.com