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(S)-Ketorolac is the S-enantiomer of Ketorolac. The (S)-enantiomer is about 60 times more potent than (R)-enantiomer. Prostaglandin biosynthesis inhibitor. Analgesic; anti-inflammatory.

The R-enantiomer of Ketorolac. The (S)-enantiomer is about 60 times more potent than (R)-enantiomer. Prostaglandin biosynthesis inhibitor. Analgesic; anti-inflammatory.

ChEBI: A 5-benzoyl-2,3-dihydro-1H-pyrrolizine-1-carboxylic acid that has S configuration. While (S)-ketorolac is a COX1 and COX2 inhibitor, both enantiomers exhibit analgesic effects. Racemic ketorolac, known s mply as ketorolac, is used (mainly as the tromethamine salt) as a potent analgesic for the short-term management of post-operative pain, and in eye drops to relieve the ocular itching associated with seasonal allergic conjunctivitis.