- Facts and Comparisonswww.wolterskluwer.com
- Institute for Safe Medication Practiceswww.ismp.org
- U.S. Food and Drug Administrationwww.fda.gov
- Consumer Healthcare Products Associationwww.chpa-info.org
- American Pharmacists Associationwww.pharmacist.com
- RxList – The Internet Drug Index for Prescription Drugs, Medications and Pill Identifierwww.rxlist.com
