- The Parkinson’s Resource Organization, Wellness Villagewww.parkinsonsresource.org
- Shop Medville.Comwww.shopmedville.com
- US Food and Drug Administrationwww.fda.gov
- American Pharmacists Associationwww.pharmacist.com
- RxList – The Internet Drug Index for prescription drug information, interactions and side effectswww.rxlist.com
- Drugwatch’s Safe Prescription Drug Use Guidewww.drugwatch.com
- Consumer Healthcare Products Associationwww.chpa.org