Kansas City Patient Resources

For help with substance abuse and addiction, reach out to the following resource(s): Substance Abuse and Mental Health Services Administration’s National Helpline: 

Marijuana use contains potential risks and possible side effects of marijuana including:

  • Marijuana use affects brain functioning, and is likely to cause physical and mental impairment;
  • Those who consume marijuana should not operate a motor vehicle or other similar equipment;
  • Women who are or may become pregnant or are breastfeeding should avoid using marijuana as it may cause pregnancy complications, harm your baby’s development, and result in a lower birth weight;
  • Secondhand smoke from marijuana can have psychoactive effects, and should be avoided for all children.

If you are concerned about possible poison risks please contact the Missouri Poison Center @ 1-800-222-1222

Anticipated onset times vary from product to product and effects will vary depending on the person. Some anticipated time frames for various marijuana products include the following

  • Flower (incinerated): less than 5 minutes
  • Concentrates: Less than 5 minutes
  • Vape Cartridges: Less than 5 minutes
  • Edibles: 15 minutes – 1 hour

The Department’s contact information and website address: