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. 1977 Mar;53(617):126–129. doi: 10.1136/pgmj.53.617.126

The different effects of sodium bicarbonate and aluminium hydroxide on the absorption of indomethacin in man.

J C Garnham, T Kaspi, C M Kaye, V M Oh
PMCID: PMC2496481  PMID: 16256

Abstract

The influence of oral sodium bicarbonate and aluminium hydroxide on the absorption of indomethacin has been studied in normal volunteers. While sodium bicarbonate appeared to increase indomethacin absorption, aluminium hydroxide markedly reduced both the rate and extent of absorption. The buccal absorption of indomethacin over the pH range 5-9 was also studied in normal volunteers, and showed that the percentage absorption increased markedly as the pH was reduced. The clinical importance both of pH-partition and of adsorption are discussed in the context of antacid interactions. It is concluded that caution must be exercised when prescribing an antacid with other orally-administered drugs.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Ambre J. J., Fischer L. J. Effect of coadministration of aluminum and magnesium hydroxides on absorption of anticoagulants in man. Clin Pharmacol Ther. 1973 Mar-Apr;14(2):231–237. doi: 10.1002/cpt1973142231. [DOI] [PubMed] [Google Scholar]
  2. Brooks P. M., Walker J. J., Bell M. A., Buchanan W. W., Rhymer A. R. Indomethacin--aspirin interaction: a clinical appraisal. Br Med J. 1975 Jul 12;3(5975):69–71. doi: 10.1136/bmj.3.5975.69. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. 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]
  4. Garnham J. C., Raymond K., Shotton E., Turner P. The effect of buffered aspirin on plasma indomethacin. Eur J Clin Pharmacol. 1975 Feb 28;8(2):107–113. doi: 10.1007/BF00561558. [DOI] [PubMed] [Google Scholar]
  5. Hurwitz A., Sheehan M. B. The effects of antacids on the absorption of orally administered pentobarbital in the rat. J Pharmacol Exp Ther. 1971 Oct;179(1):124–131. [PubMed] [Google Scholar]
  6. Hurwitz A. The effects of antacids on gastrointestinal drug absorption. II. Effect on sulfadiazine and quinine. J Pharmacol Exp Ther. 1971 Dec;179(3):485–489. [PubMed] [Google Scholar]
  7. Hussar D. A. Oral anticoagulants--their interactions. J Am Pharm Assoc. 1970 Feb;10(2):78–passim. doi: 10.1016/s0003-0465(16)31123-5. [DOI] [PubMed] [Google Scholar]
  8. 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]
  9. JAMES A. H., PICKERING G. W. The role of gastric acidity in the pathogenesis of peptic ulcer. Clin Sci. 1949 Sep;8(3):181–210. [PubMed] [Google Scholar]
  10. Jeremy R., Towson J. Interaction between aspirin and indomethacin in the treatment of rheumatoid arthritis. Med J Aust. 1970 Jul 18;2(3):127–129. doi: 10.5694/j.1326-5377.1970.tb87342.x. [DOI] [PubMed] [Google Scholar]
  11. Khalil S. A. The uptake of digoxin and digitoxin by some antacids. J Pharm Pharmacol. 1974 Dec;26(12):961–967. doi: 10.1111/j.2042-7158.1974.tb09216.x. [DOI] [PubMed] [Google Scholar]
  12. LEVIN E., KIRSNER J. B., PALMER W. L. Benign gastric ulcer with apparent achlorhydria. Gastroenterology. 1951 Mar;17(3):414–419. [PubMed] [Google Scholar]
  13. Mason D. I. In-patient prescribing in a rheumatic diseases centre. A study in self-abasement. Health Bull (Edinb) 1975 Mar;33(2):72–75. [PubMed] [Google Scholar]
  14. McCallister J. D., Chin T. F., Lach J. L. Diffuse reflectance studies of solid-solid interactions. IV. Interaction of bishydroxycoumarin, furosemide, and other medicinal agents with various adjuvants. J Pharm Sci. 1970 Sep;59(9):1286–1289. doi: 10.1002/jps.2600590916. [DOI] [PubMed] [Google Scholar]
  15. Segre E. J., Chaplin M., Forchielli E., Runkel R., Sevelius H. Naproxen-aspirin interactions in man. Clin Pharmacol Ther. 1974 Apr;15(4):374–379. doi: 10.1002/cpt1974154374. [DOI] [PubMed] [Google Scholar]
  16. el-Masry S., Khalil S. A. Adsorption of atropine and hyoscine on magnesium trisilicate. J Pharm Pharmacol. 1974 Apr;26(4):243–248. doi: 10.1111/j.2042-7158.1974.tb09265.x. [DOI] [PubMed] [Google Scholar]

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