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  • Title: Therapeutic drug monitoring of digoxin-20 years of experience.
    Author: Grześk G, Stolarek W, Kasprzak M, Krzyżanowski M, Szadujkis-Szadurska K, Wiciński M, Grześk E.
    Journal: Pharmacol Rep; 2018 Feb; 70(1):184-189. PubMed ID: 29414149.
    Abstract:
    BACKGROUND: Digoxin is the oldest drug used in the pharmacotherapy of heart failure (HF). However, digoxin remains an important therapeutic option for patients with persistent symptoms of HF occurring despite the implementation of standard pharmacotherapy. Digoxin concentration serum (SCD) should equal 1-2ng/ml. The aim of our study was to measure of SCD among the hospitalized patients as well as to determine the selected factors influencing the concentration of the digoxin in the blood. METHODS: The presented research was based on a retrospective analysis including 2149 patients treated with digoxin and hospitalized between 1980 and 2000. Was used for the determination of SCD automatic analyzer TDX ABBOTT GmbH - fluorescence polarization immunoassay (FPIA), with therapeutic range for digoxin of 0.8-2.0ng/ml. RESULTS: Average SCD result in the study population was located within the therapeutic range and amounted 1.06ng/ml (55.7% of patients). Statistically significant differences in digoxin level were observed depending on the way of medicine administration (p=0.000001) and the daily amount (p=0.001). Moreover, statistically significant differences in digoxin level were observed depending on sex (p=0.00002). CONCLUSIONS: An elevated level of digoxin was observed in the case of patients who received the medication both orally and intravenously, together with an increase in the daily amount of digoxin doses. It was confirmed that an elevated digoxin level occurs in the course of treatment in the case of women.
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