Book excerpt: This spin-off from Stephen M. Stahl's new, completely revised, and fully updated sixth edition of the Prescriber's Guide covers the most important drugs in use today for treating depression. Now established as the indispensable formulary in psychopharmacology, easy to navigate and easy to use, the Prescriber's Guide combines evidence-based information with clinically informed guidance to support clinicians in making the most effective prescribing decisions for the good of their patients. Incorporating information on the newest indications, new formulations, new recommendations and new safety data, this edition continues to provide the essential practical support required by anyone prescribing in the field of mental health.