"DynaMed provides clinically-organized summaries for more than 3,200 disease and condition topics. The database allows physicians, medical students and other health care professionals to research high-end synthesized information from respected publications, associations, and contributing clinicians. DynaMed's collection includes over 800 topic summaries on AHFS Drug Information®, which is a source of comparative and evaluative drug information."
"Health professionals and consumers alike can depend on it for information that is authoritative and up-to-date. MedlinePlus has extensive information from the National Institutes of Health and other trusted sources on over 975 diseases and conditions. There are directories, a medical encyclopedia and a medical dictionary, health information in Spanish, extensive information on prescription and nonprescription drugs, health information from the media, and links to thousands of clinical trials. MedlinePlus is updated daily and can be bookmarked at the URL: https://medlineplus.gov/. There is no advertising on this site, nor does MedlinePlus endorse any company or product."
"The Substance Abuse and Mental Health Services Administration (SAMHSA) is the agency within the U.S. Department of Health and Human Services that leads public health efforts to advance the behavioral health of the nation. SAMHSA's mission is to reduce the impact of substance abuse and mental illness on America's communities."