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[Drug use and dependence in schizophrenia]
F Arias Horcajadas1, J J Padín Calo, M A Fernández González
1Centro de Salud Santa Elena, Zamora.
Actas Luso-Espanolas De Neurologia, Psiquiatria Y Ciencias Afines
|April 4, 1998
Summary
Drug dependence is common in schizophrenia. Patients with schizophrenia showed higher rates of cocaine, alcohol, cannabis, and nicotine use compared to controls, with the negative subtype exhibiting lower substance use.
Area of Science:
- Psychiatry
- Addiction Medicine
- Neuroscience
Context:
- Drug dependence frequently co-occurs with schizophrenia, impacting patient outcomes.
- Two primary models explain this link: drug-induced psychosis and self-medication of symptoms or side effects.
- Understanding substance use patterns in schizophrenia is crucial for effective treatment.
Purpose:
- To investigate the prevalence of psychoactive substance use and dependence in individuals with schizophrenia.
- To examine the association between substance use and schizophrenia subtypes (positive, negative, mixed).
- To assess the relationship between substance use and treatment compliance.
Summary:
- Schizophrenia patients exhibited significantly higher rates of cocaine, alcohol, cannabis, and nicotine use than a control group.
- Individuals with the negative subtype of schizophrenia showed lower prevalence of most substance use and dependence.
- Drug use was correlated with poorer treatment compliance in schizophrenia patients.
Impact:
- Findings highlight the high prevalence of substance use disorders in schizophrenia, particularly for cannabis and cocaine.
- The negative schizophrenia subtype appears to have a lower burden of substance use.
- Results underscore the need for integrated treatment approaches addressing both schizophrenia and co-occurring substance use disorders.