Evaluation of an Educational Intervention Based on Theory of Planned Behavior to Reduce Suicidal Ideation and Attempts in Drug Addicts Receiving Methadone: A Quasi-Experimental Study.

The results of the present study showed the effect of educational intervention on the knowledge, attitude, subjective norms, perceived behavioral control, suicidal ideation and suicidal attempt of addicts, thus confirming the effectiveness of the TPB-based intervention on reducing suicide of addicts.