This document discusses drugs used in cardiopulmonary resuscitation (CPR) and emergencies. It provides details on the mechanism of action, indications, contraindications, adverse reactions and considerations for over 30 different drugs including epinephrine, vasopressin, atropine, lidocaine, sodium bicarbonate, amiodarone, magnesium sulfate, defibrillation, naloxone, flumazenil, atipamezole, activated charcoal, adenosine, albuterol, alteplase, amiodarone, amyl nitrite, aspirin, atenolol, atropine sulfate, calcium chloride, calcium gluconate,