Micromedex This link opens in a new windowMicromedex is a search engine for drug databases that provides in-depth information for drugs (both prescription and over-the-counter commercial products), diseases, toxicology, and alternative medicine. It also provides patient counseling tools for medications, procedures, and conditions as well as dosing calculators. Databases searched include POISINDEX, DRUGDEX, DISEASEDEX, PDR, MARTINDALE, and RED BOOK.