Green Book – Approved Animal Drug Products lists veterinary drugs approved by the FDA.

Orange Book – Approved Drug Products with Therapeutic Equivalence Evaluations Identifies FDA-approved human drug products and their therapeutic equivalence, patent, and exclusivity information.
·      "A" CODES - Drug products that FDA considers to be therapeutically equivalent to other pharmaceutically equivalent products
·      "B" CODES - Drug products that FDA considers not to be therapeutically equivalent to other pharmaceutically equivalent products

Pink Book – Epidemiology and Prevention of Vaccine-Preventable Diseases Comprehensive guide for healthcare professionals on vaccines and the diseases they prevent.

Purple Book – Licensed Biological Products with Reference Product Exclusivity and Biosimilarity or Interchangeability Evaluations Details biosimilar and interchangeable biological products approved by the FDA.

Red Book – Drug Pricing and Descriptive Information Provides pricing and product details for over 200,000 healthcare items, including pharmaceuticals and medical supplies.

The Pharmacy Red Book still exists, but it has shifted from a printed book to a daily-updated digital database operated by Micromedex (Merative). It serves as a key, comprehensive source for drug pricing (including AWP), NDC numbers, and product information for pharmaceuticals, over-the-counter drugs, and supplies

Yellow Book – CDC Health Information for International Travel Trusted resource for travel-related health information and vaccine recommendations.