SPL Set ID: 2c76b8f9-5385-4c98-aebb-bdca8613d24b

Keto ro lac t ro met ham ine op htha lm ic so lut i on 0.5% is a m ember of the pyrrolo-­pyrrole group of nonsteroidal anti-inflammatory drugs (NSAIDs) for ophthal mic use. Its che mical na me is (±)-5-Benzoyl-2, 3-dihydro-1H pyrrolizi ne-1-carboxylic acid co m pound with 2-a mino-2-(hydroxy methyl)-1,3-propanediol ( 1:1) and it has the following structure: Keto ro lac t ro met ham ine op htha lm ic so lut i on is supplied as a sterile isotonic aqueous 0.5% solution, with a pH of 7.4. Keto ro lac t ro met ham ine op htha lm ic so lut i on is a race mic m ixture of R-(+) and S-(-)- ketor olac tro metha mine. Ketorol ac tro methamine may exist in t hree cr ystal for ms. All for ms are equally soluble in water. The pKa of ketorolac is 3.5. This white to o ff-white c rystalline su bstance discolors on prolonged exposure to light. The m o lecular weight of ketorolac tro metha mine is 376.41. The os molality of keto ro lac t ro met ham ine op htha lm ic so lut i on is 290 m O s mol/kg. Each mL of ketorolac tromethamine ophthalmic solution contains: Active: ketorolac tromethamine USP 0.5%. Preservative: benzalkonium chloride solution (50%) NF 0.02%. Inactives: edetate disodium USP 0.1%; octoxynol 40; water for injection USP; sodium chloride USP; hydrochloric acid NF and/or sodium hydroxide NF to adjust the pH. ketorolac-structure