How much ketorolac do you need to treat a patient’s pain? Historically, it’s been 60mg IM and 30 mg IV. In press in the Annals of Emergency Medicine - Comparison of Intravenous Ketorolac at Three Single-Dose Regimens for Treating Acute Pain in the Emergency Department: A Randomized Controlled Trial found that 10 mg IV was equal in analgesia to 15 and 30 mg. So is more better? In this case, probably not.