Medical Diagnosis of Dependence (requires at least 3)
Substance is taken in larger amounts or over a longer period than was intended
Persistent desire or unsuccessful efforts to cut down or control use
Great deal of time is spent in activities necessary to obtain the substance, use the substance, or recover from its effects.
Important social, occupational, or recreational activities are given up or reduced because of use
Use is contained despite knowledge of having a persistent or recurrent physical or psychological problem that is likely to have been caused by or exacerbated by the substance