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What is Addiction?
Addiction, clinically termed Substance Use Disorder (SUD) or Behavioral Addiction, is a chronic brain disorder characterized by compulsive engagement in rewarding stimuli (e.g., drugs, gambling) despite harmful consequences. The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5) defines SUD as a cluster of cognitive, behavioral, and physiological symptoms indicating impaired control, social impairment, risky use, and pharmacological criteria (tolerance/withdrawal) (American Psychiatric Association, 2013). The ICD-11 classifies addiction under Disorders Due to Substance Use and Gambling/Gaming Disorders, emphasizing functional impairment and loss of control (World Health Organization, 2022).
Symptoms of Addiction
Per DSM-5, a diagnosis requires ≥2 of the following within 12 months:
- Impaired Control:
- Consuming larger amounts or for longer than intended.
- Persistent desire or failed attempts to cut down.
- Social Impairment:
- Failure to fulfill major obligations (work, school, home).
- Continued use despite relationship conflicts.
- Risky Use:
- Recurrent use in physically hazardous situations (e.g., driving).
- Pharmacological Criteria:
- Tolerance: Needing more of the substance to achieve the same effect.
- Withdrawal: Physical/psychological symptoms upon cessation.
- Craving: Strong urge to use the substance or engage in the behavior.
ICD-11 adds criteria like prioritizing substance/behavior over other activities and persisting despite harm.
Types of Addiction
- Substance-Related Addictions:
- Alcohol Use Disorder (AUD)
- Opioid Use Disorder
- Stimulant Use Disorder (e.g., cocaine, methamphetamine)
- Cannabis Use Disorder
- Tobacco/Nicotine Dependence
- Behavioral Addictions:
- Gambling Disorder (DSM-5 and ICD-11).
- Gaming Disorder (ICD-11 only).
- Emerging: Internet, shopping, or sex addiction (not yet formally classified).
- Polysubstance Use Disorder: Concurrent misuse of multiple substances (Oxford Textbook of Psychiatry).
Causes of Addiction
A biopsychosocial interplay drives addiction:
- Biological:
- Dysregulation of dopamine reward pathways and prefrontal cortex (impulse control).
- Genetic factors (heritability 40–60% for alcohol/opioid dependence) (Kaplan & Sadock’s Synopsis of Psychiatry).
- Psychological:
- Trauma, comorbid mental health disorders (depression, PTSD), or personality traits (impulsivity).
- Environmental:
- Early substance exposure, peer influence, poverty, or lack of social support (Maudsley Guidelines).
Diagnosing Addiction
- Clinical Interview:
Assess substance/behavior patterns, withdrawal history, and functional impact (DSM-5/ICD-11).
- Screening Tools:
- AUDIT (Alcohol Use Disorders Identification Test).
- DAST-10 (Drug Abuse Screening Test).
- Gambling Symptom Assessment Scale (ICD-11).
- Medical Evaluation:
Lab tests (liver function, urine drug screens) to identify physical damage.
- Differential Diagnosis:
Rule out medical conditions (e.g., hyperthyroidism) or psychiatric disorders (e.g., bipolar mania) (NICE Guidelines).
Treatment for Addiction
Evidence-based interventions include:
- Psychotherapy:
- Cognitive Behavioral Therapy (CBT): Identifies triggers and builds coping strategies.
- Motivational Interviewing (MI): Enhances readiness to change.
- Contingency Management: Rewards abstinence (e.g., voucher-based incentives).
- Pharmacotherapy:
- Opioid Use Disorder: Methadone, buprenorphine, or naltrexone (blocks opioid receptors).
- Alcohol Use Disorder: Acamprosate, disulfiram, or naltrexone.
- Nicotine Dependence: Varenicline or nicotine replacement therapy (Maudsley Prescribing Guidelines).
- Support Groups:
- 12-Step Programs (Alcoholics Anonymous, Narcotics Anonymous).
- SMART Recovery (science-based, non-spiritual approach).
- Harm Reduction:
Needle exchange programs, supervised injection sites, or naloxone distribution for overdose prevention.
- Integrated Care:
Address co-occurring mental health disorders (e.g., depression, anxiety) via dual diagnosis treatment (Oxford Textbook of Psychiatry).
addiction symptoms / types of addiction / DSM-5 substance use disorder / ICD-11 gaming disorder / opioid addiction treatment / CBT for addiction / alcohol withdrawal management.
