Cocaine is most commonly taken in a crystalline powder form, cocaine hydrochloride, made from the leaves of the coca plant. It stimulates the central nervous system, increasing body temperature and respiratory rate, suppressing appetite and the need for sleep. A rush of euphoria, leading to improved confidence and energy levels. Side affects Severe cravings after the initial effect wears off. High doses can cause loss of co-ordination, tremors, dizziness and sweats.
Chronic cases can result in paranoia, hallucinations and impotence.