MerckManuals.com offers a Consumer Version and a Professional Version of an online manual that covers thousands of health topics, including drugs.
Merck & Co., a corporation that has produced medical reference manuals for over 100 years, publishes the website. Medical professionals identified by name and credentials write much of the website’s content. Information about specific drugs is from Elsevier, a Dutch publishing company. The website describes its policies for maintaining the editorial independence of the website’s writers and reviewers. A review in the Journal of the Medical Library Association calls MerckManuals.com a reliable and trusted source for medical information.
The Consumer Version includes Health Topic Drugs (information about drugs in general) and Drug Info (information about specific drugs). The Professional Version includes Clinical Pharmacology (information about drugs in general); Drug Info (information about specific drugs); and a Quiz (scroll to clinical pharmacology).
Tips for use:
– In the Consumer Version see Quick Facts (marked by an image of a speeding hare) for articles that are shorter and easier to read.
– From the dropdown menu on the upper right see languages offered for the Consumer Version (English, Spanish, French, German, Italian, Japanese, Korean, Portuguese, Russian, Chinese, Arabic, Kiswahili, Hindi and Indonesian). Some material, such as information about specific drugs, is available only in English.
Reviewed October 2025