What do systematic reviews say?

Summary of findings for the main comparisons: Agonist pharmacological vs no intervention

Summary of findings for the main comparisons: Agonist pharmacological showed no clear difference in drug use self reported dichotomous self report information compared with no intervention (low certainty).

• Pharmacological interventions for drug‐using offenders 2015 · Cochrane Headline outcomes only
  RR 0.61 [0.31, 1.18]
  3 studies · 317 participants
  Low