kokain

Kokain (also spelled "cocaine" in English) is a powerful and addictive stimulant drug derived from the leaves of the coca plant, *Erythroxylum coca*. It acts on the central nervous system to produce effects such as increased alertness, energy, and euphoria. Medically, it can be used in certain local anesthetic procedures, but its recreational use is illegal in most countries due to its high potential for abuse and harmful health effects.