TY - CHAP M1 - Book, Section TI - Cocaine Toxicity A1 - Williams, Saralyn R. A1 - Thurman, R. Jason A2 - Knoop, Kevin J. A2 - Stack, Lawrence B. A2 - Storrow, Alan B. A2 - Thurman, R. Jason PY - 2021 T2 - The Atlas of Emergency Medicine, 5e AB - Cocaine is a natural alkaloid derived from the leaves of Erythroxylum coca. Cocaine hydrochloride (powder cocaine) is a crystalline white powder. “Crack,” the free-base of cocaine hydrochloride, is an off-white substance named both for its rock-like appearance (“rock”) and the sound it makes when heated. “Crack” may be smoked as it vaporizes when heated. Inhalation of the vapor results in rapid absorption and distribution of the cocaine to the brain. SN - PB - McGraw-Hill CY - New York, NY Y2 - 2024/04/20 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1181056674 ER -