Book excerpt: Nine out of ten people use psychoactive substances on a regular basis, making it essential for all healthcare providers to be knowledgeable about both prescription and recreational drugs. Memorable Psychopharmacology uses a conversational tone, catchy mnemonics, visual aids, and practice questions to ensure that you not only learn the material but retain it far into the future. For anyone preparing to meet the mental health needs of their patients (including medical students, physicians, nurses, pharmacists, psychologists, physician assistances, social workers, and more), Memorable Psychopharmacology is an indispensable review.