Ketorolac (RS37619) hydrochloride is a non-steroidal anti-inflammatory drug (NSAID), acting as a nonselective COX inhibitor, with IC 50 s of 20 nM for COX-1 and 120 nM for COX-2. Ketorolac hydrochloride tromethamine is used as 0.5% ophthalmic solution for the research of allergic conjunctivitis, cystoid macular edema, intraoperative miosis, and postoperative ocular inflammation and pain. Ketorolac hydrochloride tromethamine is also a DDX3 inhibitor that can be used for cancer research.