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The Influence of Antineoplastic Chemotherapy on Antipyrine Metabolism in Man
Author(s) -
Wissel P. S.,
Sordillo P.,
Magill G. B.
Publication year - 1989
Publication title -
the journal of clinical pharmacology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.92
H-Index - 116
eISSN - 1552-4604
pISSN - 0091-2700
DOI - 10.1002/j.1552-4604.1989.tb03325.x
Subject(s) - doxorubicin , drug metabolism , chemotherapy , mitomycin c , pharmacology , pharmacokinetics , volume of distribution , medicine , metabolism , renal function , drug , chemistry , endocrinology , surgery
When either Doxorubicin or Mitomycin‐C was administered to patients, antipyrine clearance was respectively unaltered or increased. Antipyrine was administered to patients two days prior to and one day after their first course of the chemotherapeutic drug. Antipyrine clearance increased an average of 11.2% in the 5 patients that received Doxorubicin (not significant) and 15.2% in the six patients that received Mitomycin‐C ( P = 0.033, students t‐test). The altered clearance is likely due to a rapid induction of the mixed function oxidase system by the chemotherapy as other parameters that could influence clearance were stable throughout the study (volume of distribution, weight, creatinine clearance and liver function tests). It is unlikely that the prechemotherapy antipyrine dose accounted for this change. The administration of these two antitumor antibiotics in humans may modestly increase the mixed function oxidase activity that is responsible for the metabolism of antipyrine. These findings are in direct contrast to markedly decreased mixed‐function oxidase activity observed in the rodent pretreated with the same chemotherapy.