What Are The Different Types Of Drug Dependence?

What Are The Different Types Of Drug Dependence? Opiates, tobacco, and alcohol are common drugs that cause physical dependency. The second kind, psychological dependency, affects a person emotionally and mentally rather than, or in addition to, physiologically. What are the 4 types of drug classifications? stimulants (e.g. cocaine) depressants (e.g. alcohol) opium-related painkillers (e.g. heroin)