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

Details

Stereochemistry RACEMIC
Molecular Formula C13H14ClNO2
Molecular Weight 251.709
Optical Activity ( + / - )
Defined Stereocenters 0 / 1
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of PIRPROFEN

SMILES

CC(C(O)=O)C1=CC(Cl)=C(C=C1)N2CC=CC2

InChI

InChIKey=PIDSZXPFGCURGN-UHFFFAOYSA-N
InChI=1S/C13H14ClNO2/c1-9(13(16)17)10-4-5-12(11(14)8-10)15-6-2-3-7-15/h2-5,8-9H,6-7H2,1H3,(H,16,17)

HIDE SMILES / InChI
Pirprofen is a non-steroidal anti-inflammatory drug, related structurally to drugs such as ibuprofen, ketoprofen and naproxen. Pirprofen was introduced by Ciba-Geigy in 1982 as a treatment for rheumatic diseases. In 1990 due to adverse effects, including some cases of fatal liver toxicity the manufacturers decided to discontinue marketing it worldwide. Pirprofen proved to be useful in the management of both rheumatoid arthritis and osteoarthritis and as an analgesic. In doses of 600-800 mg/d, pirprofen has been found to be as effective as, but not superior to, aspirin 3.6 g/d in relieving the more common symptoms of rheumatoid arthritis. Pirprofen is as effective as, but not superior to, other available NSAIDs in terms of efficacy, tolerability, and incidence of adverse effects. The recommended dosage in osteoarthritis is 450-600 mg/d.

Approval Year

PubMed

PubMed

TitleDatePubMed
[Hepatitis due to pirprofen; 3 cases, 1 fatality].
1986 Jan-Feb
Aldosterone glucuronidation by human liver and kidney microsomes and recombinant UDP-glucuronosyltransferases: inhibition by NSAIDs.
2009 Sep
Patents

Sample Use Guides

Published clinical trials indicate that pirprofen 600 to 1200 mg/day as 2 or 3 divided doses is a suitable alternative to usual therapeutic dosages of aspirin, flurbiprofen, ibuprofen, indomethacin, ketoprofen, naproxen, piroxicam and sulindac in the treatment of rheumatoid arthritis, osteoarthritis, ankylosing spondylitis, musculoskeletal disorders and non-articular rheumatism. In patients with acute postsurgical, trauma or cancer pain, single oral or intramuscular doses of pirprofen 200 to 400mg provide equivalent analgesic activity to usual therapeutic doses of aspirin, diflunisal, ketoprofen, noramidopyrine, paracetamol and pentazocine.
Route of Administration: Other
In Vitro Use Guide
Curator's Comment: Pirprofen, racemic 2-[3-chloro-4(3-pyrrolinyl) phenyl] propionic acid, was evaluated for its ability to inhibit the conversion of arachidonic acid into prostaglandin E2 by sheep seminal vesicle prostaglandin synthase in vitro.
The compound proved to be a potent inhibitor with a Ki value of about 1.2 uM.
Name Type Language
PIRPROFEN
INN   MART.   MI   USAN   WHO-DD  
USAN   INN  
Official Name English
PIRPROFEN [MI]
Common Name English
RANGASIL 400
Common Name English
3-Chloro-4-(3-pyrrolin-1-yl)hydratropic acid
Systematic Name English
SU 21524
Code English
RACEMIC PIRPROFEN
Common Name English
SU-21524
Code English
2-(3-CHLORO-4-(2,5-DIHYDROPYRROL-1-YL)-PHENYL)PROPANOIC ACID
Systematic Name English
2-(3-CHLORO-4-(3-PYRROLIN-1-YL)PHENYL)PROPIONIC ACID
Systematic Name English
PIRPROFEN [USAN]
Common Name English
Pirprofen [WHO-DD]
Common Name English
BENZENEACETIC ACID, 3-CHLORO-4-(2,5-DIHYDRO-1H-PYRROL-1-YL)-.ALPHA.-METHYL-
Common Name English
RENGASIL
Common Name English
(±)-PIRPROFEN
Common Name English
HYDRATROPIC ACID, 3-CHLORO-4-(3-PYRROLIN-1-YL)-
Common Name English
pirprofen [INN]
Common Name English
PIRPROFEN [MART.]
Common Name English
SEFLENYL
Brand Name English
PIRPROFEN [JAN]
Common Name English
Classification Tree Code System Code
WHO-VATC QM01AE08
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
WHO-ATC M01AE08
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
Code System Code Type Description
PUBCHEM
35935
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
MESH
C008924
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
WIKIPEDIA
Pirprofen
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
MERCK INDEX
m896
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY Merck Index
DRUG CENTRAL
2213
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PRIMARY
FDA UNII
T7KN291890
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
EPA CompTox
DTXSID7023489
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
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INN
3717
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PRIMARY
CAS
31793-07-4
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
ECHA (EC/EINECS)
250-805-8
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
CAS
46801-03-0
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
SUPERSEDED
NCI_THESAURUS
C170327
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
DRUG BANK
DB13722
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
EVMPD
SUB09940MIG
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
ChEMBL
CHEMBL188952
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY
SMS_ID
100000081700
Created by admin on Fri Dec 15 17:15:04 GMT 2023 , Edited by admin on Fri Dec 15 17:15:04 GMT 2023
PRIMARY