Cannabinoid Hyperemesis Syndrome (CHS) is a condition that can be seen in some chronic cannabis users, characterized by severe nausea and vomiting in a cyclic pattern, sometimes followed by a compulsive act of hot water bathing to improve symptoms. Despite cannabis's well-known antiemetic properties, certain individuals develop CHS, which presents a unique challenge due to its atypical symptoms. The condition often presents in patients who have been using cannabis extensively, as exemplified by a case involving a 33-year-old male with a history of cyclic vomiting syndrome. This patient presented with recurrent nausea and vomiting, coupled with a compulsive need for hot water bathing, a hallmark feature of CHS (Iacopetti and Packer, 2014).
The diagnosis of CHS is confirmed through the presence of prolonged cannabis use, cyclic nausea and vomiting, relief from hot water bathing, and normal diagnostic tests excluding other conditions. As reported in the Mayo Clinic's criteria, the resolution of symptoms with cannabis cessation and the absence of identifiable pathology in other diagnostic tests are key indicators of CHS (Iacopetti and Packer, 2014). The compulsive bathing behavior, which offers temporary symptom relief, sets CHS apart from other vomiting disorders and is crucial for its identification.
Understanding the pathophysiology of CHS involves exploring the complex interactions of cannabinoids with the endocannabinoid system. THC, the principal psychoactive component in cannabis, tends to accumulate in body fat and can lead to paradoxical emetic effects in some users. The interplay between THC's antiemetic and emetic actions, along with possible contributions from other cannabinoids like cannabidiol, necessitates further research to further explain the precise mechanisms underlying CHS (Iacopetti and Packer, 2014). Awareness of CHS among healthcare providers is essential for timely diagnosis and effective management, reducing unnecessary diagnostic procedures and improving patient outcomes.
According to the Cleveland Clinic, CHS is most commonly seen in patient who have been using Cannabis for 10-12 years. Treatment involves antiemetics and fluid replacement. Hot showers has effects on certain receptors to alleviate symptoms as well. It is important to address conditions like these to the general population in the modern era we live.
Cannabis offers therapeutic benefits but recognizing the possibilities of conditions like CHS are crucial. Informing the public of signs, symptoms and when to seek help would promote responsible use of this substance.
Iacopetti, C. L., & Packer, C. D. (2014). Cannabinoid hyperemesis syndrome: a case report and review of pathophysiology. Clinical medicine & research, 12(1-2), 65–67. https://doi.org/10.3121/cmr.2013.1179
