Title: Capsaicin for cannabinoid hypermesis syndrome?<br/>Author: Hong Kim<br/><a href='http://umem.org/profiles/faculty/526/'>[Click to email author]</a><hr/><p> </p> <p> Cannabinoid hyperemesis syndrome [CHS] (i.e. cyclic/recurrent nausea, vomiting and abdominal pain) is associated with long-term and frequent use of marijuana. Patients with CHS often report temporary relief of symptoms with hot water/shower exposure. Emergency room providers may encounter a growing number of patients with CHS with increasing legalization of marijuana-containing products.</p> <p> Topical capsaicin has been gaining interest as a potential adjunct to the conventional management of patients with CHS (e.g. antiemetics, opioids, benzodiazepines and antipsychotics).</p> <p> A small retrospective study was performed involving 43 patients who had multiple visits, and were treated with and without capsaicin. The primary outcome was the ED length of stay (LOS).</p> <p> <strong>Results</strong></p> <ul> <li> Most frequently administered medications in both groups were:</li> </ul> <ol style="margin-left: 40px;"> <li> Anti-emetics</li> <li> Haloperidol</li> <li> Diphenhydramine </li> </ol> <ul> <li> Median ED LOS: no significant difference <ul> <li> Capsaicin vs. non-capsaicin: 179 min (IQR: 147, 270) vs. 201 min (IQR: 168, 310) (p=0.33)</li> </ul> </li> </ul> <ul> <li> Capsaicin group showed <ul> <li> Decreased opioid used: 69 mg vs. 166.5 mg oral morphine equivalents</li> <li> Fewer additional medication administration: 3 vs. 4 doses (p=0.015)</li> <li> Shorter median time to discharge after last medication administration: 60 min (IQR: 35, 115) vs. 92 min (IQR: 47, 155) (p=NS) </li> </ul> </li> </ul> <ul> <li> 67% of the visit where capsaicin was used required no additional medication.</li> </ul> <p> </p> <p> <strong>Conclusion</strong></p> <ul> <li> Capsaicin use did not decrease ED LOS.</li> <li> However, there was a decrease in total medications administered and opioid requirement.</li> </ul> <fieldset><legend>References</legend>
<p> Wagner S et al. Efficacy and safety of topical capsaicin for cannabinoid hyperemesis syndrome in the emergency department. Clin Toxicol (Phila) 2019. <span style="font-family: arial, helvetica, clean, sans-serif; font-size: 11.004500389099121px;">Sep 4:1-5. doi: 10.1080/15563650.2019.1660783. [Epub ahead of print]</span></p> </fieldset>