This handbook gives information on drugs from acetazolamide to zonisamide. The information about each drug includes: chemical and therapeutic classes; FDA pregnancy risk category; controlled substance schedule; route, onset, steady state peak, half-life, and duration information shown as a chart; mechanism of action; incompatibilities; contraindications; interactions with drugs, food, and activities (such as smoking); adverse reactions; overdose signs and symptoms and nursing interventions; and nursing considerations, including key patient-teaching points. The handbook also provides dosage adjustments for elderly patients, patients with renal impairment, and others with special needs; mechanism-of-action illustrations that enhance the detailed explanations of how drugs work at the cellular, tissue, or organ levels; and warnings that highlight important facts before, during, or after drug administration.