Reporting from the USA: Intranasal Ketamine Seems Effective for Refractory Chronic Migraine

Intranasal ketamine seems effective for refractory chronic migraine, with about half of patients reporting it as very effective, according to a study published online May 30 in Regional Anesthesia & Pain Medicine.

Hsiangkuo Yuan, M.D., Ph.D., from Thomas Jefferson University in Philadelphia, and colleagues conducted a retrospective study at a single tertiary headache center to examine the clinical effectiveness and tolerability of intranasal ketamine for refractory chronic migraine. A total of 242 patients received intranasal ketamine between January 2019 and February 2020; 169 were interviewed.

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