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Temporary gains and permanent costs in methamphetamine precursor control.

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Precursor control for methamphetamine production was initially cost-effective but lost efficacy over time as illicit producers adapted. Regulations on legal consumers, however, remained, impacting net benefits.

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Area of Science:

  • Drug policy analysis
  • Criminology
  • Public health

Background:

  • Pioneering work by James Cunningham evaluated precursor control impacts on methamphetamine markets.
  • Illicit drug production and associated harms are significant public health and policy concerns.

Purpose of the Study:

  • To review the short-run and long-run impacts of precursor control on methamphetamine markets and harms.
  • To interpret evidence on the cost-effectiveness and efficacy of precursor control strategies.

Main Methods:

  • Literature review of studies on precursor control for methamphetamine.
  • Analysis of short-run and long-run impacts, considering supply-side adjustments and regulatory effects.

Main Results:

  • Precursor control was likely cost-effective in the short run.
  • Long-run supply adjustments by illicit producers diminished the controls' effectiveness.
  • Permanent regulations on legal consumers of cold medications impacted net benefits.

Conclusions:

  • Policymakers face challenges when illicit market supply can adjust long-term, but legal consumers cannot.
  • The long-term efficacy of precursor control is limited by adaptive strategies of illicit producers.