Piroxicam

Piroxicam is a COX inhibitor and non-steroidal anti-inflammatory drug (NSAID) with anti-inflammatory and analgesic properties. It inhibits production of thromboxane B2 (TXB2, Cay-19030) from arachidonic acid (Cay-90010, Cay-90010.1, Cay-10006607) in HEL human erythroleukemic cells (IC50 = 0.45 µM), which endogenously express COX-1, as well as inhibits LPS-induced formation of prostaglandin F1alpha (PGF1alpha, Cay-15010) from arachidonic acid in Mono-Mac-6 cells (IC50 = 0.77 µM), which endogenously express COX-2. Lornoxicam reduces LPS-induced production of nitric oxide and IL-6 in cell-based assays with IC50 values of 240 and ~470 µM, respectively. It reduces carrageenan-induced paw edema in rats when administered at doses of 1, 2.5, and 5 mg/kg. Formulations containing piroxicam have been used in the treatment of pain and inflammation associated with osteoarthritis and rheumatoid arthritis.Formal Name: 4-hydroxy-2-methyl-N-2-pyridinyl-2H-1,2-benzothiazine-3-carboxamide-1,1-dioxide. CAS Number: 36322-90-4. Synonyms: NSC 666076. Molecular Formula: C15H13N3O4S. Formula Weight: 331.4. Purity: >95%. Formulation: (Request formulation change), A crystalline solid. Solubility: DMF: 20 mg/ml, DMSO: 20 mg/ml, DMSO:PBS (pH 7.2) (1:1): 0.5 mg/ml. lambdamax: 206, 240, 330 nm. SMILES: O=C(C(N1C)=C(O)C2=CC=CC=C2S1(=O)=O)NC3=CC=CC=N3. InChi Code: InChI=1S/C15H13N3O4S/c1-18-13(15(20)17-12-8-4-5-9-16-12)14(19)10-6-2-3-7-11(10)23(18,21)22/h2-9,19H,1H3,(H,16,17,20). InChi Key: QYSPLQLAKJAUJT-UHFFFAOYSA-N.