Cookies Policy
X

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Gastrointestinal tolerability of nimesulide, a selective cyclooxygenase-2 inhibitor, in experimental animals and man

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Inflammopharmacology

These studies assessed the gastrointestinal tolerability and cyclooxygenase (COX) selectivity of nimesulide in animals and man. Nimesulide (15 and 30 mg/kg) had no significant 'topical' toxicity in animals as assessed by in vivo mitochondrial morphologcal studies and no increase in small intestinal permeability or inflammation in rats. Similarly, these doses did not affect mucosal prostaglandins significantly and there were no ulcers. At the very high does of 60 mg/kg, nimesulide had some 'topical' toxicity and lost some of its COX-2 selectivity, but this was not associated with inflammation or ulcers. Indomethacin (10 mg/kg, equivalent to 15 mg/kg of nimesulide) altered all of the above parameters and led to small bowel ulcers. This suggests that the gastrointestinal tolerability of nimesulide is not only due to its COX-2 selectivity, but that it is also due to its lack of 'topical' toxicity. Thirty six healthy subjects participated in a randomised, double-blind, double-dummy crossover study (14 day treatment with a washout) of the effect of nimesulide (100 mg bid) and naproxen (500 mg bid) on the gastroduodenal mucosa and small intestine (absorption-permeability and inflammation). An assessment was also made on their COX selectivity. Nimesulide caused significantly less gastric (p = 0.0001) and duodenal (p = 0.0086) damage than naproxen. Naproxen increased intestinal permeability significantly (p = 0.004) and caused intestinal inflammation while nimesulide (p > 0.40) did not. Nimesulide had no significant (p > 0.1) effect on COX-1 dependant platelet aggregation, reduced serum thromboxane B2 levels moderately by 24-34% (p < 0.005) and decreased prostanoid generation in gastric biopsies by 9-30% (p > 0.5). By comparison, naproxen had significantly (p < 0.0001) greater effects on these functions: abolished platelet aggregation to arachidonic acid, suppressed serum thromboxane B2 levels by 98% and gastric prostaglandin production by 76-82%. Nimesulide inhibited lipopolysaccharide-induced PGE2 formation in whole blood to a significantly (p < 0.01) greater extent than naproxen.

This study shows that nimesulide has a preferential selectivity for COX-2 over COX-1 in vivo at full therapeutic doses. This selectivity is associated with minimal gastrointestinal damage in the short term.

10.1163/15685600038215
/content/journals/10.1163/15685600038215
dcterms_title,pub_keyword,dcterms_description,pub_author
6
3
Loading
Loading

Full text loading...

/content/journals/10.1163/15685600038215
Loading

Data & Media loading...

http://brill.metastore.ingenta.com/content/journals/10.1163/15685600038215
Loading

Article metrics loading...

/content/journals/10.1163/15685600038215
2000-06-01
2016-12-08

Sign-in

Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
     
    Inflammopharmacology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation