- U.S. Food and Drug Administrationwww.fda.gov
- Consumer Healthcare Products Associationwww.chpa-info.org
- American Society of Health-System Pharmacistswww.safemedication.com
- Institute for Safe Medication Practiceswww.ismp.org
- RxList – The Internet Drug Index for prescription drugs, medications and pill identifierwww.rxlist.com
