This Pocket Guide to ER Medications has been designed to be a functional tool in everyday practice. It details: the indications and contraindications of the products; the dosages indicated in the context of the emergency and according to the indication; drug preparation (dilution product, administration vector, preparation methods, physico-chemical incompatibilities); the methods of administration according to the route of administration (number of drops, speed of administration, spray rate, etc.); monitoring elements specific to the drug and limited to the first hours of administration. A multitude of recommendations are provided so that the drug prescription is not a source of additional complication for the patient. Caregivers thus confronted with emergency situations will have daily access to easily available and manageable information.