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Journal of Neurology, Neurosurgery, and Psychiatry logoLink to Journal of Neurology, Neurosurgery, and Psychiatry
. 1981 Feb;44(2):148–151. doi: 10.1136/jnnp.44.2.148

The effects of phenytoin on phenobarbitone and primidone metabolism.

D G Lambie, R H Johnson
PMCID: PMC490847  PMID: 7217971

Abstract

Serum concentrations of primidone and its metabolites-phenobarbitone and phenylethylmalonamide-were measured in 40 epileptic patients receiving treatment with primidone alone or primidone plus phenytoin. Serum phenobarbitone concentrations were also measured in 100 patients receiving phenobarbitone, alone or with phenytoin showed raised serum phenobarbitone concentrations. Phenytoin also caused raised phenylethylmalonamide concentrations in patients on primidone.

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Selected References

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

  1. Baumel I. P., Gallagher B. B., Mattson R. H. Phenylethylmalonamide (PEMA). An important metabolite of primidone. Arch Neurol. 1972 Jul;27(1):34–41. doi: 10.1001/archneur.1972.00490130036005. [DOI] [PubMed] [Google Scholar]
  2. Callaghan N., Feely M., Duggan F., O'Callaghan M., Seldrup J. The effect of anticonvulsant drugs which induce liver microsomal enzymes on derived and ingested phenobarbitone levels. Acta Neurol Scand. 1977 Jul;56(1):1–6. doi: 10.1111/j.1600-0404.1977.tb01403.x. [DOI] [PubMed] [Google Scholar]
  3. Fincham R. W., Schottelius D. D., Sahs A. L. The influence of diphenylhydantoin on primidone metabolism. Arch Neurol. 1974 Mar;30(3):259–262. doi: 10.1001/archneur.1974.00490330067012. [DOI] [PubMed] [Google Scholar]
  4. Goudie J. H., Burnett D. A gas-chromatographic method for the simultaneous determination of phenobarbitone, primidone and phenytoin in serum using a nitrogen detector. Clin Chim Acta. 1973 Feb 12;43(3):423–429. doi: 10.1016/0009-8981(73)90482-8. [DOI] [PubMed] [Google Scholar]
  5. Lambie D. G., Johnson R. H., Nanda R. N., Shakir R. A. Therapeutic and pharmacokinetic effects of increasing phenytoin in chronic epileptics on multiple drug therapy. Lancet. 1976 Aug 21;2(7982):386–389. doi: 10.1016/s0140-6736(76)92405-3. [DOI] [PubMed] [Google Scholar]
  6. Morselli P. L., Rizzo M., Garattini S. Interaction between phenobarbital and diphenylhydantoin in animals and in epileptic patients. Ann N Y Acad Sci. 1971 Jul 6;179:88–107. doi: 10.1111/j.1749-6632.1971.tb46892.x. [DOI] [PubMed] [Google Scholar]
  7. Olesen O. V., Dam M. The metabolic conversion of primidone (Mysoline) to phenobarbitone in patients under long-term treatment. An attempt to estimate the independent effect of primidone. Acta Neurol Scand. 1967;43(3):348–356. doi: 10.1111/j.1600-0404.1967.tb05737.x. [DOI] [PubMed] [Google Scholar]
  8. Reynolds E. H., Fenton G., Fenwick P., Johnson A. L., Laundy M. Interaction of phenytoin and primidone. Br Med J. 1975 Jun 14;2(5971):594–595. doi: 10.1136/bmj.2.5971.594. [DOI] [PMC free article] [PubMed] [Google Scholar]

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