Influence of cimetidine on the disposition of ibuprofen in the rat
Parrott, K.A.; Christensen, J.M.
Research Communications in Chemical Pathology and Pharmacology 43(3): 369-380
1984
ISSN/ISBN: 0034-5164 PMID: 6718807 Document Number: 230189
Ibuprofen is a non-steroidal anti-inflammatory agent which is extensively metabolized in both man and the rat. Cimetidine is a well known H2 antagonist which inhibits microsomal enzyme drug metabolism. The influence of cimetidine on the disposition of ibuprofen was studied in Sprague-Dawley rats. Pretreatment with cimetidine increased both the rate and extent of absorption of ibuprofen. Cimetidine treatment also inhibited acidification of gastric fluid. Pretreatment with SKF525A increased ibuprofen half-life but not absorption. Additional studies are necessary to determine the effect of cimetidine on the half-life and absorption of ibuprofen in man.