Ketorolac (RS37619) hemicalcium is a nonselective COX inhibitor with IC50s of 20 nM and 120 nM for COX-1 and COX-2, respectively. Ketorolac hemicalcium is a non-steroidal anti-inflammatory drug (NSAID) that 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 hemicalcium is also a DDX3 inhibitor that can be used in cancer research (1) (4).