- U.S. Food and Drug Administration www.fda.gov
- ConsumerMedSafety.org www.consumermedsafety.org
- Institute for Safe Medication Practices www.ismp.org
- Consumer Healthcare Products Association www.chpa-info.org
- PDR.net – The Most Trusted Source for FDA-approved Drug Labeling for Physicians and Prescribers www.pdr.net
