- U.S. Food and Drug Administrationwww.fda.gov
- American Society of Health-System Pharmacistswww.safemedication.com
- ConsumerMedSafety.orgwww.consumermedsafety.org
- Consumer Healthcare Products Associationwww.chpa-info.org
- RxListwww.rxlist.com
- PDR.netwww.pdr.net
- MedicineNetwww.medicinenet.com
