First published in 1959, the "Big Red Book," as it's come to be known, has gone the extra mile for pharmacists and healthcare professionals seeking answers to the most detailed questions. It provides more extensive evidence-based data than any other drug reference.

AHFS DI is the only reference free from the influence of manufacturers, insurers, regulators, and other special interests, giving you an unbiased source of drug information.

In a single volume, you get:  

• Over 40,000 represented medicines
• Over 100,000 represented drug products
• Expert medical and pharmaceutical commentary
• Off-label and labeled uses
• Drug interactions
• Cautions and toxicity
• Extensive dosage and methods of administration
• Chemistry and stability
• Only well-established, referenced laboratory and test inferences
• Pharmacology and Pharmacokinetics
• Over 70,000 uniquely cited references

In addition to its versatility, the AHFS database is the most current of the leading drug references. The average age of our monographs is less than one year.

Written and published by pharmacists and reviewed by over 500 experts, AHFS DI is a unique and invaluable reference for all healthcare professionals.