Inhalants addictive properties

Cocaine and amphetamines share a similar profile of addictiveness, though cocaines addictive properties are more intense. The cocaine that is inhaled nasally is the hydrochloride salt. The free-base form of cocaine, called crack cocaine, is also abused. As with the street drug ice, which is the free-base form of methamphetamine, crack cocaine is volatile and may be smoked for what is an intense but profoundly dangerous and addictive high. 

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