October 2022

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This systematic review found IM or IV ketorolac had similar efficacy in treating acute migraine headache as phenothiazines and metoclopramide but was unable to draw significant conclusions about ketorolac in comparison to other therapies or as part of a multi-drug cocktail due to paucity of evidence.

Source
Efficacy of ketorolac in the treatment of acute migraine attack: A systematic review and meta-analysis. Acad Emerg Med. 2022 Sep;29(9):1118-1131. doi: 10.1111/acem.14457. Epub 2022 Mar 10.