Further study is needed to explore how to curb misuseand abuse of BZD in the addiction population, and provide effective treatments targeting simultaneously addictionsymptoms, anxiety disorders and BZD misuse.Keywords: Benzodiazepines use prescription drug misuse, methadone program, anxiety, survey studyBackgroundBenzodiazepines (BZD) misuse and abuse is a seriouspublic health problem in the Unit