There is no such thing as a safe drug.
No drug can be completely harmless or offer no side effects to anyone, whether it is over the counter (OTC), prescription, legal or illegal.
In an article published in the American Journal of Psychology, the authors wanted to determine whether marijuana use led to a higher likelihood of opioid use. More importantly, are marijuana users more likely than nonusers to misuse prescription opioids and develop prescription opioid use disorder, the article asked.
The article, published on Sept. 26, 2017, came to the conclusion that marijuana use did increase the risk of developing non-medical prescription opioid use, and opioid use disorder.
The data showed the 43,000 American adults who were interviewed in 2001-02 and 34,000 follow-up interviews in 2004-05 were 2.2 times higher more than likely than nonusers to develop the criteria for opioid abuse, and 2.6 times higher for opioid misuse, the study said.
The study completed by researchers at the National Institute on Drug Abuse (NIDA), which is part of the National Institutes of Health, and Columbia University.
The link to the NIH study can be found here.
Link to the American Journal of Psychology article here