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Piroxicam
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| Systematic (IUPAC) name | |
| (8E)-8-[hydroxy-(pyridin-2-ylamino)methylidene]- 9-methyl-10,10-dioxo-10λ6-thia-9-azabicyclo[4.4.0] deca-1,3,5-trien-7-one |
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| Identifiers | |
| CAS number | |
| ATC code | M01 M02, S01 |
| PubChem | |
| DrugBank | |
| Chemical data | |
| Formula | C15H13N3O4S |
| Mol. mass | 331.348 g/mol |
| Pharmacokinetic data | |
| Bioavailability | ? |
| Metabolism | 4 to 10% renal |
| Half life | 30 to 86 hours |
| Excretion | 4 to 10% renal |
| Therapeutic considerations | |
| Pregnancy cat. |
C, D if used in the third trimester or near delivery |
| Legal status |
POM |
| Routes | PO |
Piroxicam is a non-steroidal anti-inflammatory drug used to relieve the symptoms of rheumatoid and osteoarthritis, primary dysmenorrhoea, postoperative pain; and act as an analgesic, especially where there is an inflammatory component. It is manufacturerd by Pfizer under the tradename Feldene, and is available in the 
United Kingdom and 
United States.
It is also used in veterinary medicine to treat certain neoplasias expressing cyclooxygenase (COX) receptors, such as bladder, colon, and prostate cancers.
Other brand names for Piroxicam include "Brexidol", "Brexin", "Erazon", "Felden", "Feldoral", "Hotemin", "Pirox von ct", "Proponol", "Reumador", "Tracam", "Veral", and "Vurdon".
Mechanism of action
Piroxicam is an NSAID and, as such, is a non-selective COX inhibitor possessing both analgesic and antipyretic properties. It undergoes enterohepatic circulation.
Adverse effects
Piroxicam use can result in gastrointestinal toxicity, tinnitus, dizziness, headache, rash, and pruritus. The most severe adverse reactions are peptic ulceration and gastrointestinal bleeding. Approximately 30% of all patients receiving daily doses of 20 mg of piroxicam experience side effects.[1]
Piroxicam may cause skin to become more sensitive to sunlight. Avoidance of sunlight and use of sunscreen is recommended.citation needed
Footnotes
- ^ New Zealand Medicines and Medical Devices Safety Authority. "Candyl Medicines datasheet". Retrieved on 2006-09-10.
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Wikipedia content modification information:
- This page was last modified on 26 September 2008, at 01:21.
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