Abstract
In the use of anti-inflammatory compounds, sustained serum levels are thought to be related to drug efficacy. This study shows that frequent clinical administration of indomethacin can result in sustained serum levels of the drug and that food and antacid may have important modifying effects on serum indomethacin concentrations. After oral ingestion by fasting subjects, indomethacin rapidly appeared in the serum, usually reaching peak concentrations in 30 to 90 minutes. Food delayed and decreased the mean peak level; antacid delayed the peak and slightly enhanced subsequent concentrations. With multiple dose schedules plateau levels were reached after 24 hours. When a total daily dose of 150 mg was given as 25 mg every 4 hours peak concentrations were the same but fluctuations were smaller and average concentrations were higher than with a dosage of 50 mg every 8 hours.
Full text
PDF





Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- Caruso I. Verteilung von Indometacin in Blut und Synovialflüssigkeit chronischer Polyarthritiker. Arzneimittelforschung. 1971 Nov;21(11):1824–1826. [PubMed] [Google Scholar]
- Champion G. D., Paulus H. E., Mongan E., Okun R., Pearson C. M. The effect of aspirin on serum indomethacin. Clin Pharmacol Ther. 1972 Mar-Apr;13(2):239–244. doi: 10.1002/cpt1972132239. [DOI] [PubMed] [Google Scholar]
- Donnelly P., Lloyd K., Campbell H. Indomethacin in rheumatoid arthritis: an evaluation of its anti-inflammatory and side effects. Br Med J. 1967 Jan 14;1(5532):69–75. doi: 10.1136/bmj.1.5532.69. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Duggan D. E., Hogans A. F., Kwan K. C., McMahon F. G. The metabolism of indomethacin in man. J Pharmacol Exp Ther. 1972 Jun;181(3):563–575. [PubMed] [Google Scholar]
- Emori H. W., Champion G. D., Bluestone R., Paulus H. E. Simultaneous pharmacokinetics of indomethacin in serum and synovial fluid. Ann Rheum Dis. 1973 Sep;32(5):433–435. doi: 10.1136/ard.32.5.433. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hvidberg E., Lausen H. H., Jansen J. A. Indomethacin: plasma concentrations and protein binding in man. Eur J Clin Pharmacol. 1972 Mar;4(2):119–124. doi: 10.1007/BF00562508. [DOI] [PubMed] [Google Scholar]
- Koch-Weser J. Drug therapy. Serum drug concentrations as therapeutic guides. N Engl J Med. 1972 Aug 3;287(5):227–231. doi: 10.1056/NEJM197208032870505. [DOI] [PubMed] [Google Scholar]
- LANSDOWN F. S., RADZIN I. EFFECT OF ALUMINUM HYDROXIDE GEL ON BLOOD CONCENTRATIONS OF PARA-AMINOSALICYLIC ACID. Am Rev Respir Dis. 1963 Nov;88:721–724. doi: 10.1164/arrd.1963.88.5.721. [DOI] [PubMed] [Google Scholar]
- Lindquist B., Jensen K. M., Johansson H., Hansen T. Effect of concurrent administration of aspirin and indomethacin on serum concentrations. Clin Pharmacol Ther. 1974 Mar;15(3):247–252. doi: 10.1002/cpt1974153247. [DOI] [PubMed] [Google Scholar]
- Rosenoer V. M., Gill G. M. Drug interactions in clinical medicine. Med Clin North Am. 1972 May;56(3):585–597. doi: 10.1016/s0025-7125(16)32372-0. [DOI] [PubMed] [Google Scholar]
- Van Arman C. G., Nuss G. W., Risley E. A. Interactions of aspirin, indomethacin and other drugs in adjuvant-induced arthritis in the rat. J Pharmacol Exp Ther. 1973 Nov;187(2):400–414. [PubMed] [Google Scholar]
