Micromedex (Merative) This link opens in a new windowA comprehensive source for drug information. Search for dosage, pharmacokinetics, cautions, interactions, comparative efficacy, clinical applications and place in therapy for investigational, international, FDA-approved, and nonprescription preparations. Also features comparative drug summaries in a side-by-side format, multi-level therapeutic class tree, and drug images for easier identification. Includes Red Book Online the latest drug product pricing and packaging information on prescription and over-the-counter drug products.