Background: The prevalence of opium addiction among Iranians is considerable. Since endogenous opioid systems may be altered as a consequence of addiction, it is very important to determine the plasma and cerebrospinal ...

Background: Substance abuse and consequently the use of methadone in Iran are reported at high levels. Drugs alter sexual function by affecting the organs of the body. The aim of this study was to evaluate sexual functioning ...

Background: The articles and research reports presented in the scientific journals are selected without a proper critical appraisal in many cases. This is a major problem, as it leads to the opinions of the experts being ...

Background: Transtheoretical model (TTM) has been recognized as a common theoretical model in researches in terms of addictive behaviors. The aim of this study was to examine the psychometric properties of the Persian brief ...

Background: Chronic opioid use is a major public health problem with significant morbidity. The aim of this study was to investigate factors associated with sustained remission among a sample of Iranian chronic opioid users ...

Background: It is not well understood whether the self-reported experience of substance abuse-related problems differs by socioeconomic status.Methods: We conducted a secondary analysis using the 2013 National Survey on ...