The
main effects of cocaine are that it acts as a local
anaesthetic, and it temporarily block the reuptake of
dopamine in the brain causing an intense rush of euphoria,
accompanied by an increase in confidence, and some increase
in energy and decrease in appetite.
It is most commonly snorted
(insufflated), but it can be injected, or taken orally. If
injected the anaesthetic effects of the cocaine tend to have
a profound numbing effect on the area around the injection
site. If snorted it may cause a numbing of the nose and the
front teeth.