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Animal Science

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European Journal of Drug Metabolism and Pharmacokinetics



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Background and Objectives Numerous studies have confirmed the influence of diabetes mellitus on the pharmacokinetics of drugs. Paracetamol (APAP) is an antipyretic that is commonly used in febrile neutropenia (FN) therapy. APAP is chiefly metabolised by glucuronidation and sulphation. This study assessed the influence of diabetes on the pharmacokinetics of paracetamol and its metabolites: glucuronide (APAP-glu) and sulfate (APAP-sulfate) in FN patients.

Methods Patients with FN received single intravenous dose 1000 mg of APAP. The FN patients were allocated to one of two groups: diabetics (DG, n = 7) or non-diabetics (NDG, n = 11). The plasma concentrations of paracetamol and its metabolites were measured with the validated high-performance liquid chromatography (HPLC) with ultraviolet (UV) detection.

Results Pharmacokinetic parameters (mean [SD]) of APAP in the DG and NDG groups were as follows: Cmax (maximum comcentration) = 21.50 [11.23] vs. 23.42 [9.79] mg/L, AUC 0–t (area under the concentration–time curve) = 44.23 [17.93] vs. 41.43 [14.57] mg·h/L, t1/2kel (elimination half-life) = 2.28 [0.80] vs. 2.11 [0.80] h. In both groups the exposure to APAP was comparable. The study did not reveal differences between the two groups in the pharmacokinetics of APAP-glu and APAP-sulfate. The Cmax and AUC 0–t ratio between the metabolites and APAP were similar.

Conclusions No differences in the pharmacokinetics of APAP, APAP-glu and APAP-sulfate in patients with FN indicates that diabetes does not influence glucuronidation and sulfatation of paracetamol.


This article is published as Stachowiak, A., Szałek, E., Karbownik, A. et al. The Influence of Diabetes Mellitus on Glucuronidation and Sulphation of Paracetamol in Patients with Febrile Neutropenia. Eur J Drug Metab Pharmacokinet 44, 289–294 (2019). doi: 10.1007/s13318-018-0508-4.

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