Ketorolac or ketorolac tromethamine (marketed under the trademarks Toradol and Acular in the US, where generics have also been approved, and various other brand names "Minolac" (ACI Pharmaceuticals) around the world) is a non-steroidal anti-inflammatory drug (NSAID) in the family of heterocyclic acetic acid derivative, often used as an analgesic. Ketorolac acts by inhibiting the bodily synthesis of prostaglandins. Ketorolac in its oral (tablet or capsule) and intramuscular (injected) preparations is a racemic mixture of both (S)-(−)-ketorolac, the active isomer, and (R)-(+)-ketorolac. An ophthalmic (i.e., eye-drop) solution of ketorolac is available and is used to treat eye pain and to relieve the itchiness and burning of seasonal allergies.The FDA has approved an intranasal formulation of ketorolac tromethamine (Sprix Nasal Spray) for short-term management of moderate to moderately severe pain requiring analgesia at the opioid level.