Stahl Online This link opens in a new windowStahl Online is a comprehensive and regularly updated resource that provides full access to the entire, current Cambridge portfolio of neuropsychopharmacology books by Dr Stephen M. Stahl. Covering everything that a doctor, teacher, trainee or nurse will ever need to know about neuropsychopharmacology, Stahl Online is practical and fully searchable – practitioners can find prescribing information and patient guidance materials easily and instantly.