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Cannabinoid hyperemesis syndrome (CHS) is a condition that can happen to anyone who uses cannabis especially if you use it regularly. Researchers and healthcare professionals are just beginning to understand more about CHS. The symptoms can be the same as other medical conditions, so it can be hard to diagnose.
People with CHS often have severe nausea and vomiting that is hard to control. They may vomit more than 20 times a day and it may last more than 24 hours. Other symptoms of CHS include:
The best way to prevent CHS is by not using cannabis. When you stop using cannabis completely, you will usually feel better in 10 days.
If you have symptoms of CHS, you may feel better and lessen your symptoms by:
If you are worried about your symptoms, see your doctor or go to the hospital.
If you have nausea and vomiting that lasts for a long time, you may need to take medicine or have intravenous (IV) fluids to help you feel better.
Some people may feel better with cream (capsaicin) applied to the stomach area.
Your healthcare provider will discuss options with you.
It is important to tell your healthcare provider how often you use cannabis, your symptoms, and what makes them worse or better. This will help them diagnose the condition and help you get the best care possible.
When you use cannabis regularly, your body and brain get used to having it and you may become dependent on it. If you are dependent on cannabis, you may have symptoms of withdrawal when you stop using, such as:
You may also:
Not using cannabis is the only way to prevent CHS.
Call 911 if you:
See your doctor or call Health Link at 811 if you:
If you need help and support to stop using cannabis:
To see this information online and learn more, visit MyHealth.Alberta.ca/health/pages/conditions.aspx?Hwid=custom.ab_cannabis_chs_inst.
For 24/7 nurse advice and general health information call Health Link at 811.
Current as of: August 10, 2023Author: PADIS (Poison and Drug Information Service), Alberta Health Services
This material is not a substitute for the advice of a qualified health professional. This material is intended for general information only and is provided on an "as is", "where is" basis. Although reasonable efforts were made to confirm the accuracy of the information, Alberta Health Services does not make any representation or warranty, express, implied or statutory, as to the accuracy, reliability, completeness, applicability or fitness for a particular purpose of such information. Alberta Health Services expressly disclaims all liability for the use of these materials, and for any claims, actions, demands or suits arising from such use.