NOV 15, 2018 4:21 PM PST

Marijuana-Induced Cyclic Vomiting

WRITTEN BY: Amy Loriaux

Trigger warning: If you are a bit squeamish about emesis (vomiting) then this article may not be for you. Otherwise, prepare yourself to learn about a particularly nasty symptom that is showing up more and more in states with legalized marijuana - cyclic vomiting syndrome (CVS). Of all of the many effects of marijuana you have heard about, this one seems the most disconcerting. A report recently published online in the Internal Medicine Journal by researchers from the Medical College of Wisconsin describes a disturbing trend. From 2010 to 2014 Colorado hospital admissions for CVS had nearly doubled. This is concomitant with the legalization of recreational marijuana in 2012. 

Photo Source: unsplash.com

CVS is usually seen in children. These kids will show up to the emergency room several times a year following a bout of repetitive emesis that apparently comes out of nowhere. CVS is not a result of food poisoning or the stomach flu, although many patients are misdiagnosed their first time at the ER. However, there are a few curious characteristics that CVS patients share. For one, pediatric patients will tend to "grow out" of CVS, only to develop migraines as an adult. Another interesting one is the role of a hot shower. Hot showers seem to relieve the symptoms of nausea and hyperemesis (rapid vomiting) in patients with CVS. 

Several theories have been put forth to explain the etiology of the disorder, with the most common being theory positing mechanisms involving a connecting pathway between the gut and central nervous system. Recently, however, another cause has been put forth: chronic marijuana use. With the increase in legalization across the country, there has also been a rise in the rates of CVS amongst chronic users. This syndrome seems to occur even in longtime smokers who have never experienced this side effect before. This marijuana-induced CVS has been given its own name: Cannabinoid hyperemesis syndrome (CHS).

Photo source: Unsplash.com 

CHS was first described in 2004 by scientists out of Mt. Barker Hospital in Australia. In the journal, Gut, researchers described nine patients who were chronic marijuana smokers and had presented with symptoms of CVS. These symptoms resolved after the patients stopped using marijuana. As the report out of the Medical College of Wisconsin suggests, the rates of CHS are rising in states with relaxed marijuana laws. This is especially the case in Colorado, where recreational marijuana is legal. The exact mechanisms behind CHS are currently unknown, but it is a bit surprising given the documented antiemetic properties of marijuana. As legalization continues to travel across the states, hopefully a mechanism can be discovered, if not a treatment. As of yet, the only way to stop CHS is abstinence from marijuana. See the video below for more information. 

Video source: YouTube.com

Sources Internal Medicine Journal, Children's Hospital of Wisconsin, kpcnews.com, Gut, Pharmacology Biochemistry Behavior

About the Author
  • I currently work at a small CRO involved in clinical trial management.
You May Also Like
SEP 10, 2020
Cannabis Sciences
Legalizing Cannabis Does Not Lead to Teenage Substance Abuse
SEP 10, 2020
Legalizing Cannabis Does Not Lead to Teenage Substance Abuse
Some say that decriminalizing cannabis may lead to an uptick in young people abusing the substance. Countering this fear ...
SEP 21, 2020
Cannabis Sciences
Why Do We Build Tolerance to Cannabis?
SEP 21, 2020
Why Do We Build Tolerance to Cannabis?
Many notice that after regularly smoking cannabis, it takes more and more to feel its effects- if any at all. While abst ...
NOV 05, 2020
Health & Medicine
Medical Cannabis Reduces Chronic Pain and Opioid Use
NOV 05, 2020
Medical Cannabis Reduces Chronic Pain and Opioid Use
Researchers affiliated with the University of Haifa in Israel have reported on the efficacy of medical cannabis use for ...
NOV 06, 2020
Cannabis Sciences
How Does Cannabis Affect Male Fertility?
NOV 06, 2020
How Does Cannabis Affect Male Fertility?
While most studies investigating the link between cannabis and male fertility have shown a negative correlation, some su ...
DEC 22, 2020
Health & Medicine
Cannabis Use May Help People on an Opioid Detox Program Stay on Track
DEC 22, 2020
Cannabis Use May Help People on an Opioid Detox Program Stay on Track
New research suggests that cannabis use by people being treated for opioid addiction might improve outcomes and reduce t ...
DEC 23, 2020
Health & Medicine
Holiday Cheer: Americans Swap Alcohol for Cannabis this Christmas
DEC 23, 2020
Holiday Cheer: Americans Swap Alcohol for Cannabis this Christmas
Cannabis users polled by Glasshouse Group — a California-based cannabis and hemp company, which runs several dispe ...
Loading Comments...