- US Food and Drug Administrationwww.fda.gov
- RxList – The Internet Drug Index for prescription drugs, medications and pill identifierwww.rxlist.com
- Drugs.com | Prescription Drug Information, Interactions & Side Effectswww.drugs.com
- American Pharmacists Associationwww.pharmacist.com
- American Public Health Association (APHA) – American Journal of Public Healthajph.aphapublications.org