News from the Pacific Northwest Node: ADAI Symposium on Cannabinoid Hyperemesis Syndrome (Sept. 18, 2026)

The CTN Pacific Northwest Node is located at the Addictions, Drug & Alcohol Institute (ADAI) at the University of Washington. Every two years, ADAI hosts a symposium related to cannabis. The PNW Node would like to invite you to this year’s event and also encourage anyone familiar with CHS to consider submitting an abstract for a digital poster!
The Dose Makes the Poison: Cannabinoid Hyperemesis Syndrome Goes Mainstream
September 18, 2026 | 9:00am – 4:00pm PT
Attend virtually or in person in Seattle, WA
CME accreditation pending for providers; Certificate of attendance available for both in-person and virtual attendees
Cannabinoid Hyperemesis Syndrome (CHS) is becoming increasingly visible in clinical settings, but many providers are navigating diagnosis, treatment, and patient communication without clear guidance.
In a recent survey of Washington State healthcare providers, 70% reported treating patients experiencing severe abdominal pain, persistent nausea, retching, and relentless vomiting associated with heavy cannabis use.
Patients may not recognize cannabis as the cause of their symptoms, or may be skeptical that CHS exists at all, making effective care even more challenging.
- What we know about CHS in Washington State and the U.S.—prevalence in hospitals, emergency departments, and community settings
- Recognition, diagnosis, treatment, and management across healthcare settings
- Communicating with patients about a contested diagnosis
- Policy strategies to reduce CHS and clinical strategies to increase CHS awareness and acceptance
Whether you work in primary care, emergency medicine, behavioral health, nursing, pharmacy, or public health, this symposium will help you better understand, recognize, manage, and communicate about this important cannabis-related health condition.

Submit an abstract for a digital poster presentation by August 18
If you have any information about CHS that you want to share with others during our event, consider submitting an abstract to the 2026 ADAI Symposium describing your idea for a digital poster. Posters will be projected onscreen during the lunch break and also published on the ADAI website. Deadline: August 18, 2026.