Mixing marijuana with other substances

Don’t mix marijuana and alcohol

  • Using alcohol and marijuana at the same time is more dangerous than using either alone.
  • Use caution when driving, biking or performing any other safety-sensitive activities after use of any form of marijuana, especially if you have also consumed alcohol. 

Be careful if you take medication

  • There may be drug interactions between marijuana and your medication.
  • Talk to your health care provider about marijuana use if you’re taking prescription medications.


All information on the health effects of marijuana is taken from the Retail Marijuana Public Health Advisory Committee’s systematic review of available, high-quality research.