U.S. Department of Health & Human Services Divider Arrow National Institutes of Health Divider Arrow NCATS

Details

Stereochemistry ACHIRAL
Molecular Formula C15H13N3O4S.C2H7NO
Molecular Weight 392.429
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PIROXICAM OLAMINE

SMILES

NCCO.CN1C(C(=O)NC2=NC=CC=C2)=C(O)C3=C(C=CC=C3)S1(=O)=O

InChI

InChIKey=FVTSYHPRVGNAQI-UHFFFAOYSA-N
InChI=1S/C15H13N3O4S.C2H7NO/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;3-1-2-4/h2-9,19H,1H3,(H,16,17,20);4H,1-3H2

HIDE SMILES / InChI

Molecular Formula C15H13N3O4S
Molecular Weight 331.346
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Molecular Formula C2H7NO
Molecular Weight 61.0831
Charge 0
Count
Stereochemistry ACHIRAL
Additional Stereochemistry No
Defined Stereocenters 0 / 0
E/Z Centers 0
Optical Activity NONE

Description
Curator's Comment: Description was created based on several sources, including https://www.pfizermedicalinformation.com/en-us/feldene

Piroxicam is in a class of drugs called nonsteroidal anti-inflammatory drugs (NSAIDs). It was originally brought to market by Pfizer under the tradename Feldene in 1980, became generic in 1992, and is marketed worldwide under many brandnames. Piroxicam works by reducing hormones that cause inflammation and pain in the body. Piroxicam is used to reduce the pain, inflammation, and stiffness caused by rheumatoid arthritis and osteoarthritis. The antiinflammatory effect of Piroxicam may result from the reversible inhibition of cyclooxygenase, causing the peripheral inhibition of prostaglandin synthesis. The prostaglandins are produced by an enzyme called Cox-1. Piroxicam blocks the Cox-1 enzyme, resulting into the disruption of production of prostaglandins. Piroxicam also inhibits the migration of leukocytes into sites of inflammation and prevents the formation of thromboxane A2, an aggregating agent, by the platelets. Piroxicam is used for treatment of osteoarthritis and rheumatoid arthritis.

Originator

Curator's Comment: originally brought to market by Pfizer under the tradename Feldene in 1980 # Pfizer

Approval Year

Targets

Targets

Primary TargetPharmacologyConditionPotency
Target ID: P04040
Gene ID: 847.0
Gene Symbol: CAT
Target Organism: Homo sapiens (Human)
0.414 mM [IC50]
4.4 µM [IC50]
70.0 µM [IC50]
73.8 µM [IC50]
7.0 µM [IC50]
1.3 µM [IC50]
Conditions

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
FELDENE

Approved Use

FELDENE is a nonsteroidal anti-inflammatory drug indicated for Relief of the signs and symptoms of osteoarthritis (OA) Relief of the signs and symptoms of rheumatoid arthritis (RA)

Launch Date

1982
Primary
FELDENE

Approved Use

FELDENE is a nonsteroidal anti-inflammatory drug indicated for Relief of the signs and symptoms of osteoarthritis (OA) Relief of the signs and symptoms of rheumatoid arthritis (RA)

Launch Date

1982
Cmax

Cmax

ValueDoseCo-administeredAnalytePopulation
2.3 μg/mL
20 mg single, oral
dose: 20 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
PIROXICAM plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
AUC

AUC

ValueDoseCo-administeredAnalytePopulation
135.8 μg × h/mL
20 mg single, oral
dose: 20 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
PIROXICAM plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
T1/2

T1/2

ValueDoseCo-administeredAnalytePopulation
40.5 h
20 mg single, oral
dose: 20 mg
route of administration: Oral
experiment type: SINGLE
co-administered:
PIROXICAM plasma
Homo sapiens
population: HEALTHY
age: ADULT
sex: MALE
food status: FASTED
Doses

Doses

DosePopulationAdverse events​
40 mg 1 times / day multiple, intramuscular
Highest studied dose
Dose: 40 mg, 1 times / day
Route: intramuscular
Route: multiple
Dose: 40 mg, 1 times / day
Sources:
unhealthy, 19 -74
Health Status: unhealthy
Age Group: 19 -74
Sex: M+F
Sources:
Disc. AE: Chest pain, Rash...
AEs leading to
discontinuation/dose reduction:
Chest pain (0.74%)
Rash (0.74%)
Vomiting (0.74%)
Exanthema (0.74%)
Injection site pain (0.74%)
Sources:
1800 mg single, oral
Overdose
Dose: 1800 mg
Route: oral
Route: single
Dose: 1800 mg
Sources:
unhealthy, 54
Health Status: unhealthy
Age Group: 54
Sex: F
Sources:
Disc. AE: Nausea, Abdominal pain...
AEs leading to
discontinuation/dose reduction:
Nausea
Abdominal pain
Gastric ulcer
Duodenal ulcer
Sources:
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Disc. AE: Gastrointestinal disorders, Haemorrhage of digestive tract...
AEs leading to
discontinuation/dose reduction:
Gastrointestinal disorders (2.6%)
Haemorrhage of digestive tract (0.85%)
Headache (0.85%)
Oedema (0.85%)
Pruritus (0.85%)
Erythema facial (0.85%)
Sources:
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, >40
Health Status: unhealthy
Age Group: >40
Sex: M+F
Sources:
Disc. AE: Epigastric discomfort, Diarrhoea...
AEs leading to
discontinuation/dose reduction:
Epigastric discomfort (2.5%)
Diarrhoea (2.5%)
Loose stools (2.5%)
Sources:
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Disc. AE: Cardiac thrombosis, Myocardial infarction...
AEs leading to
discontinuation/dose reduction:
Cardiac thrombosis (grade 3-5)
Myocardial infarction (grade 3-5)
Stroke (grade 3-5)
Gastrointestinal disorder NOS (serious)
Bleeding (serious)
Ulceration (serious)
Perforation stomach (grade 3-5)
Perforation of intestine (grade 3-5)
Sources:
AEs

AEs

AESignificanceDosePopulation
Chest pain 0.74%
Disc. AE
40 mg 1 times / day multiple, intramuscular
Highest studied dose
Dose: 40 mg, 1 times / day
Route: intramuscular
Route: multiple
Dose: 40 mg, 1 times / day
Sources:
unhealthy, 19 -74
Health Status: unhealthy
Age Group: 19 -74
Sex: M+F
Sources:
Exanthema 0.74%
Disc. AE
40 mg 1 times / day multiple, intramuscular
Highest studied dose
Dose: 40 mg, 1 times / day
Route: intramuscular
Route: multiple
Dose: 40 mg, 1 times / day
Sources:
unhealthy, 19 -74
Health Status: unhealthy
Age Group: 19 -74
Sex: M+F
Sources:
Injection site pain 0.74%
Disc. AE
40 mg 1 times / day multiple, intramuscular
Highest studied dose
Dose: 40 mg, 1 times / day
Route: intramuscular
Route: multiple
Dose: 40 mg, 1 times / day
Sources:
unhealthy, 19 -74
Health Status: unhealthy
Age Group: 19 -74
Sex: M+F
Sources:
Rash 0.74%
Disc. AE
40 mg 1 times / day multiple, intramuscular
Highest studied dose
Dose: 40 mg, 1 times / day
Route: intramuscular
Route: multiple
Dose: 40 mg, 1 times / day
Sources:
unhealthy, 19 -74
Health Status: unhealthy
Age Group: 19 -74
Sex: M+F
Sources:
Vomiting 0.74%
Disc. AE
40 mg 1 times / day multiple, intramuscular
Highest studied dose
Dose: 40 mg, 1 times / day
Route: intramuscular
Route: multiple
Dose: 40 mg, 1 times / day
Sources:
unhealthy, 19 -74
Health Status: unhealthy
Age Group: 19 -74
Sex: M+F
Sources:
Abdominal pain Disc. AE
1800 mg single, oral
Overdose
Dose: 1800 mg
Route: oral
Route: single
Dose: 1800 mg
Sources:
unhealthy, 54
Health Status: unhealthy
Age Group: 54
Sex: F
Sources:
Duodenal ulcer Disc. AE
1800 mg single, oral
Overdose
Dose: 1800 mg
Route: oral
Route: single
Dose: 1800 mg
Sources:
unhealthy, 54
Health Status: unhealthy
Age Group: 54
Sex: F
Sources:
Gastric ulcer Disc. AE
1800 mg single, oral
Overdose
Dose: 1800 mg
Route: oral
Route: single
Dose: 1800 mg
Sources:
unhealthy, 54
Health Status: unhealthy
Age Group: 54
Sex: F
Sources:
Nausea Disc. AE
1800 mg single, oral
Overdose
Dose: 1800 mg
Route: oral
Route: single
Dose: 1800 mg
Sources:
unhealthy, 54
Health Status: unhealthy
Age Group: 54
Sex: F
Sources:
Erythema facial 0.85%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Haemorrhage of digestive tract 0.85%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Headache 0.85%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Oedema 0.85%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Pruritus 0.85%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Gastrointestinal disorders 2.6%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, 59.7+/-7.4
Health Status: unhealthy
Age Group: 59.7+/-7.4
Sex: M+F
Sources:
Diarrhoea 2.5%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, >40
Health Status: unhealthy
Age Group: >40
Sex: M+F
Sources:
Epigastric discomfort 2.5%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, >40
Health Status: unhealthy
Age Group: >40
Sex: M+F
Sources:
Loose stools 2.5%
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy, >40
Health Status: unhealthy
Age Group: >40
Sex: M+F
Sources:
Cardiac thrombosis grade 3-5
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Myocardial infarction grade 3-5
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Perforation of intestine grade 3-5
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Perforation stomach grade 3-5
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Stroke grade 3-5
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Bleeding serious
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Gastrointestinal disorder NOS serious
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Ulceration serious
Disc. AE
20 mg 1 times / day multiple, oral
Recommended
Dose: 20 mg, 1 times / day
Route: oral
Route: multiple
Dose: 20 mg, 1 times / day
Sources:
unhealthy
Overview

Overview

OverviewOther

Other InhibitorOther SubstrateOther Inducer





Drug as perpetrator​

Drug as perpetrator​

Drug as victim

Drug as victim

TargetModalityActivityMetaboliteClinical evidence
major
yes (pharmacogenomic study)
Comment: Higher systemic exposure of piroxicam has been noted in subjects with CYP2C9 polymorphisms compared to normal metabolizer type subject
yes
Tox targets

Tox targets

PubMed

PubMed

TitleDatePubMed
Systems pharmacological analysis of drugs inducing stevens-johnson syndrome and toxic epidermal necrolysis.
2015-05-18
Lung fibrosis induced by crystalline silica particles is uncoupled from lung inflammation in NMRI mice.
2011-06-10
Apoptosis induced by piroxicam plus cisplatin combined treatment is triggered by p21 in mesothelioma.
2011
The effect of non-steroidal anti-inflammatory agents on behavioural changes and cytokine production following systemic inflammation: Implications for a role of COX-1.
2010-03
Effects of cyclooxygenase inhibitor treatment on the renal toxicity of cisplatin in rats.
2010-02
Lack of effect of naltrindole on the spinal synergism of morphine and non-steroidal anti-inflammatory drugs (NSAIDS).
2009-06
The conversion of rapid TCCD nongenomic signals to persistent inflammatory effects via select protein kinases in MCF10A cells.
2009-04
Antirheumatic drug response signatures in human chondrocytes: potential molecular targets to stimulate cartilage regeneration.
2009
Piroxicam: restriction of indications: labelling change. Only half-measures.
2008-10
Effect of acetaminophen, a cyclooxygenase inhibitor, on Morris water maze task performance in mice.
2007-09
Genetic susceptibility to nonsteroidal anti-inflammatory drug-related gastroduodenal bleeding: role of cytochrome P450 2C9 polymorphisms.
2007-08
Immunomodulatory effect of nonsteroidal anti-inflammatory drugs (NSAIDs) at the clinically available doses.
2007-01
In silico prediction of pregnane X receptor activators by machine learning approaches.
2007-01
Inhibition of human phenol and estrogen sulfotransferase by certain non-steroidal anti-inflammatory agents.
2006-10
Non-steroidal anti-inflammatory drug-related hepatic damage in France and Spain: analysis from national spontaneous reporting systems.
2006-08
Direct binding of Cu(II)-complexes of oxicam NSAIDs with DNA backbone.
2006-08
Prediction of CYP2C9-mediated drug-drug interactions: a comparison using data from recombinant enzymes and human hepatocytes.
2005-11
Mechanisms of protection by pantoprazole against NSAID-induced gastric mucosal damage.
2005-07
Identification of HIV-1 integrase inhibitors based on a four-point pharmacophore.
1998-11
Nonsteroidal anti-inflammatory drugs enhance glutathione S-transferase theta levels in rat colon.
1998-08-24
[Cholestatic hepatitis associated with piroxicam use. Case report].
1998-05
Piroxicam and acarbose as chemopreventive agents for spontaneous intestinal adenomas in APC gene 1309 knockout mice.
1998-04
Differential effects of nonsteroidal anti-inflammatory drugs on constitutive and inducible prostaglandin G/H synthase in cultured bone cells.
1997-08
Effect of structural modification of enol-carboxamide-type nonsteroidal antiinflammatory drugs on COX-2/COX-1 selectivity.
1997-03-14
Tenidap inhibits replication of the human immunodeficiency virus-1 in cultured cells.
1997-01-01
Tenidap in rheumatoid arthritis. A 24-week double-blind comparison with hydroxychloroquine-plus-piroxicam, and piroxicam alone.
1995-10
Antiinflammatory 4,5-diarylpyrroles. 2. Activity as a function of cyclooxygenase-2 inhibition.
1995-09-29
Anti-inflammatory effects of etodolac: comparison with other non-steroidal anti-inflammatory drugs.
1994-12
Fetal renal maldevelopment with oligohydramnios following maternal use of piroxicam.
1994-10
Comparison of ketorolac tromethamine with other injectable nonsteroidal anti-inflammatory drugs for pain-on-injection and muscle damage in the rat.
1994-02
Renal disease and use of topical non-steroidal anti-inflammatory drugs.
1994-01-08
Mechanism of anti-inflammatory action of fepradinol.
1994-01
Nonsteroidal antiinflammatory drugs and certain rare, serious adverse events: a cohort study.
1993-05-01
[Iatrogenic axonal neuropathy and erythroderma induced by piroxicam. Manifestations of hypersensitivity?].
1993
Severe cholestatic jaundice associated with piroxicam.
1991-12
Zidovudine-induced macular edema.
1991-02-15
Aplastic anaemia associated with piroxicam.
1991-02
Piroxicam-induced renal failure following relief of chronic retention.
1989-04
[Acute hemolytic anemia and hepatonephritis caused by piroxicam].
1988-10-01
[Fatal autoimmune hemolytic anemia probably induced by treatment with piroxicam].
1988-03-07
[Hepatonephritis caused by piroxicam].
1987-10
Piroxicam in acute musculoskeletal disorders and sport injuries.
1987
Non-steroidal anti-inflammatory drugs: assessment of risks.
1987
A double-blind multicentre trial of piroxicam and naproxen in osteoarthritis.
1986-01
An interaction between lithium carbonate and piroxicam presenting as lithium toxicity.
1985-08
Piroxicam-induced acute renal failure (anuria)
1985-05
Piroxicam-induced acute interstitial nephritis and minimal-change nephrotic syndrome.
1985
Piroxicam-induced renal disease.
1984-01
Piroxicam-induced renal failure.
1983-11
Piroxicam-induced renal failure and hyperkalemia.
1983-07
Patents

Sample Use Guides

Recommended dose: 20 mg orally once a day
Route of Administration: Oral
Contractions induced by bradykinin in guinea-pig gallbladder smooth muscle strips were significantly attenuated by the cyclooxygenase inhibitor piroxicam (10 muM).
Substance Class Chemical
Created
by admin
on Mon Mar 31 18:09:34 GMT 2025
Edited
by admin
on Mon Mar 31 18:09:34 GMT 2025
Record UNII
T4O2MP4507
Record Status Validated (UNII)
Record Version
  • Download
Name Type Language
CP-16,171-85
Preferred Name English
PIROXICAM OLAMINE
USAN   WHO-DD  
USAN  
Official Name English
2H-1,2-BENZOTHIAZINE-3-CARBOXAMIDE, 4-HYDROXY-2-METHYL-N-2-PYRIDINYL-, 1,1-DIOXIDE, COMPD. WITH 2-AMINOETHANOL (1:1)
Systematic Name English
CP-16171-85
Code English
PIROXICAM OLAMINE [USAN]
Common Name English
CP-1617185
Code English
Piroxicam olamine [WHO-DD]
Common Name English
Classification Tree Code System Code
NCI_THESAURUS C257
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
Code System Code Type Description
PUBCHEM
54687412
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
EVMPD
SUB03877MIG
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
EPA CompTox
DTXSID30234114
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
FDA UNII
T4O2MP4507
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
NCI_THESAURUS
C66434
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
ChEMBL
CHEMBL527
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
CAS
85056-47-9
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
SMS_ID
100000085315
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
USAN
U-108
Created by admin on Mon Mar 31 18:09:34 GMT 2025 , Edited by admin on Mon Mar 31 18:09:34 GMT 2025
PRIMARY
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