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Loxoprofen sodium dihydrate is a non-steroidal, orally active anti-inflammatory agent with analgesic and anti-pyretic properties. Loxoprofen sodium dihydrate is a nonselective COX inhibitor with IC50s of 6.5 and 13.5 μM for COX-1 and COX-2, respectively. Loxoprofen sodium dihydrate can reduce atherosclerosis and shows antitumor activity[1][2][3][4].

ChEBI: Loxoprofen sodium hydrate is a hydrate that is the dihydrate form of loxoprofen sodium. The parent acid, loxoprofen, is a prodrug that is rapidly converted into its active trans-alcohol metabolite following oral administration. It has a role as a non-steroidal anti-inflammatory drug, a non-narcotic analgesic, an EC 1.14.99.1 (prostaglandin-endoperoxide synthase) inhibitor and an antipyretic. It contains a loxoprofen sodium.

COX-1: 6.5 μM (IC₅₀, in human whole blood); COX-2: 13.5 μM (IC₅₀, in human whole blood)

[1] Riendeau D, et al. Evaluation of loxoprofen and its alcohol metabolites for potency and selectivity of inhibition of cyclooxygenase-2. Bioorg Med Chem Lett. 2004;14(5):1201-1203. DOI:10.1016/j.bmcl.2003.12.047
[2] Paudel S, et al. Assessing Drug Interaction and Pharmacokinetics of Loxoprofen in Mice Treated with CYP3A Modulators. Pharmaceutics. 2019;11(9):479. Published 2019 Sep 16. DOI:10.3390/pharmaceutics11090479
[3] Hamaguchi M, et al. Loxoprofen Sodium, a Non-Selective NSAID, Reduces Atherosclerosis in Mice by Reducing Inflammation. J Clin Biochem Nutr. 2010 Sep;47(2):138-47. DOI:10.3164/jcbn.10-33
[4] Kanda A, et al. Loxoprofen sodium suppresses mouse tumor growth by inhibiting vascular endothelial growth factor. Acta Oncol. 2003;42(1):62-70. DOI:10.1080/0891060310002258