A
Drug is a substance which cause a psychological and / or physiological effect after consumption, which is not a food.
This term can encompass various compounds, chemicals, supplements, medicines, remedies,
narcotics, and even plants, ranging from relatively benign drugs like
coffee, chocolate, and tea, to highly addictive drugs like cigarettes and
heroin.
Drugs can be stimulating (
meth,
cocaine) sedating (
GHB, valium) hallucinogenic (
psilocybin mushrooms,
iboga,
DMT) or have combinations of these and more psychological effects, such as
alcohol which can be both stimulating and sedating, or
marijuana which can have all three aforementioned effects. Some drugs have primarily physiological effects such as viagra, and other drugs have virtually exclusively psychological effects as in the case of some
nootropics.
A drug can have significant health risks, like alcohol, cigarettes & meth, but can also be without significant health risks in moderate doses like
caffeine or psilocybe mushrooms.
A drug can be highly addictive, such as in the case of heroin, or can have little to no potential for
addiction, such as
LSD.