Name Info Provider Link
subscription/membership/fee required Atypon https://www.liebertpub.com/doi/10.1089/cap.2006.16.801?url_ver=Z39.88-2003&rfr_id=ori:rid:crossref.org&rfr_dat=cr_pub 0pubmed
Over-the-Counter Medicines free resource MedlinePlus Health Information https://medlineplus.gov/overthecountermedicines.html
Drug Use and Addiction free resource MedlinePlus Consumer Health Information https://medlineplus.gov/druguseandaddiction.html