Published: Sun, January 13, 2019
Medicine | By Brett Sutton

Many Medical Marijuana Users Drive High, Study Shows

Many Medical Marijuana Users Drive High, Study Shows

A study published this week found more than half of medical marijuana patients in MI drive while under the influence.

That's according to a recent University of MI study of nearly 800 Michiganders who were applying for medical marijuana re-certification or a new certification for chronic pain in 2014 and 2015.

According to a new study from U of M's addiction center, medical marijuana patients are driving high.

The researchers recruited 790 of the state's medical marijuana patients who were seeking medical marijuana certification for chronic pain in 2014 and 2015 and asked them to report on their driving habits from the past six months.

Driving under the influence of marijuana in MI is against the law - even for medical marijuana patients.


Researchers concluded that driving while under the influence of cannabis is a public health concern, stating more research needs to be done on how to measure the issue.

Bonar said in the release that when people drive under the influence of marijuana their reaction time and coordination may be slowed down and they could have a harder time reacting to the unexpected.

Bonar said mixing marijuana and driving is risky.

Bonar said there is uncertainty about how marijuana might affect driving for chronic daily marijuana users.

The study is especially timely because MI voters last November approved the use of recreational marijuana, and in December 2018 it became legal under state law for any MI resident over the age of 21 to use marijuana inside a private residence and to grow up to 12 plants for personal use. The study was published Wednesday in the "Drug & Alcohol Dependence" journal.

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