In 1995, France made it so any doctor could prescribe buprenorphine without any special licensing or training. Buprenorphine, a first-line treatment for opioid addiction, is a medication that reduces cravings for opioids without becoming addictive itself.
With the change in policy, the majority of buprenorphine prescribers in France became primary-care doctors, rather than addiction specialists or psychiatrists. Suddenly, about 10 times as many addicted patients began receiving medication-assisted treatment, and half the country’s heroin users were being treated. Within four years, overdose deaths had declined by 79 percent.
Read more here: https://www.theatlantic.com/health/archive/2018/04/how-france-reduced-heroin-overdoses-by-79-in-four-years/558023/