Substance Use Disorders (SUD) span a wide variety of problems arising from substance use, and cover 11 different criteria:

  1. Substance is often taken in larger amounts and/or over a longer period than intended.
  2. Persistent attempts or one or more unsuccessful efforts made to cut down or control substance use.
  3. A great deal of time is spent in activities necessary to obtain the substance, use the substance, or recover from effects.
  4. Craving or strong desire or urge to use the substance.
  5. Recurrent substance use resulting in a failure to fulfill major role obligations at work, school, or home.
  6. Continued substance use despite having persistent or recurrent social or interpersonal problem caused or exacerbated by the effects of the substance.
  7. Important social, occupational or recreational activities given up or reduced because of substance use.
  8. Recurrent substance use in situations in which it is physically hazardous.
  9. Substance use is continued despite knowledge of having a persistent or recurrent physical or psychological problem that is likely to have been caused or exacerbated by the substance.
  10. Tolerance, as defined by either of the following:
    a.) Markedly increased amounts of the substance in order to achieve intoxication or desired effect
    b.) Markedly diminished effect with continued use of the same amount
  11. Withdrawal as manifested by either the of the following:
    a.) The characteristic withdrawal syndrome for the substance
    b.) The same (or a closely related) substance is taken to relieve or avoid withdrawal symptoms

It is then up to the clinician to specify the severity of the SUD. The presence of 2-3 symptoms is considered mild, 4-5 symptoms is considered moderate, and 6+ symptoms being severe.

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addiction SUD Substance Use Disorder