Title: Droxicam
CAS Registry Number: 90101-16-9
CAS Name: 5-Methyl-3-(2-pyridinyl)-2H,5H-1,3-oxazino[5,6-c][1,2]benzothiazine-2,4(3H)-dione 6,6-dioxide
Manufacturers' Codes: E-3128
Trademarks: Dobenam (Angelini); Droxar (Upjohn); Ombolan (Esteve)
Molecular Formula: C16H11N3O5S
Molecular Weight: 357.34
Percent Composition: C 53.78%, H 3.10%, N 11.76%, O 22.39%, S 8.97%
Literature References: Prodrug of piroxicam. Prepn: J. E. Soler, FR 2528433; idem, US 4563452 (1983, 1986 both to Provesan SA). Spectroscopic structural analysis: J. Frigola, J. Chem. Soc. Perkin Trans. 2 1988, 241. Pharmacology: A. J. Farré et al., Methods Find. Exp. Clin. Pharmacol. 8, 407 (1986). Metabolism and pharmacokinetics in animals: A. Esteve et al., ibid. 423. Inhibition of platelet aggregation: J. Esteve et al., ibid. 9, 209 (1987). Evaluation of ulcerogenic effects in comparison with piroxicam: G. Palacios et al., ibid. 353. Clinical pharmacology: L. Martinez et al., ibid. 10, 729 (1988). Brief review of pharmacology: J. Esteve et al., Gen. Pharmacol. 19, 49-54 (1988).
Properties: Crystals from acetone. mp 259-261°. LD50 orally in male, female mice, and male, female rats: 6192, 8841, 1434, 1994 mg/kg (Soler, 1986).
Melting point: mp 259-261°
Toxicity data: LD50 orally in male, female mice, and male, female rats: 6192, 8841, 1434, 1994 mg/kg (Soler, 1986)
Therap-Cat: Anti-inflammatory.
Keywords: Anti-inflammatory (Nonsteroidal); Thiazinecarboxamides.
Status: This monograph has been retired and is no longer subject to revision or update.
Droxidopa DSPA DTAF D-Tagatose D-Tartaric Acid

Systematic (IUPAC) name
2H,5H-1,3-Oxazino(5,6-c)(1,2)benzothiazine-2,4(3H)-dione, 5-methyl-3-(2-pyridinyl)-, 6,6-dioxide
Clinical data
Legal status  ?
ATC code M01AC04
PubChem CID 65679
KEGG D07267 YesY
Chemical data
Formula C16H11N3O5S 
Mol. mass 357.34064 g/mol
 YesY (what is this?)  (verify)

Droxicam is a non-steroidal anti-inflammatory drug of the oxicam class. A prodrug of piroxicam, it is used for the relief of pain and inflammation in musculoskeletal disorders such as rheumatoid arthritis and osteoarthritis.