[HTML][HTML] Pharmacokinetic/pharmacodynamic modelling of allopurinol, its active metabolite oxypurinol, and biomarkers hypoxanthine, xanthine and uric acid in hypoxic …

WY Chu, KV Annink, AL Nijstad, CA Maiwald… - … Pharmacokinetics, 2022 - Springer
… establish the pharmacokinetics (PK) of allopurinol and oxypurinol, and the pharmacodynamics
(… The dosage used and the effect of allopurinol in this population, either or not undergoing …

Oxypurinol pharmacokinetics and pharmacodynamics in healthy volunteers: Influence of BCRP Q141K polymorphism and patient characteristics

B Vora, DJ Brackman, L Zou… - Clinical and …, 2021 - Wiley Online Library
… In this analysis, F m was used to represent the fraction of the allopurinol dose systemically
available as oxypurinol and K fm denotes the formation rate constant, similar to a previous …

Population pharmacokinetics, pharmacodynamics and pharmacogenetics modelling of oxypurinol in Hmong adults with gout and/or hyperuricemia

YF Wen, RC Brundage, YM Roman… - … Pharmacology, 2023 - Wiley Online Library
… the exposure of serum oxypurinol, the active metabolite of allopurinol.These two transporters…
were estimated, where fm represents the fraction of allopurinol dose available as oxypurinol

Detection of allopurinol and oxypurinol in canine urine by HPLC/MS-MS: Focus on veterinary clinical pharmacokinetics

ALPC Godoy, C de Jesus, RS Gonçalves… - … of Pharmaceutical and …, 2020 - Elsevier
… In our present work, we achieved recoveries of 74 % and 100 % respectively for
allopurinol and oxypurinol from clinical canine urine samples, which we consider superior. …

[HTML][HTML] Bioavailability and bioequivalence of allopurinol in two tablet formulations

SMI Al-Dalaen, AWR Hamad… - … Pharmacology …, 2020 - biomedpharmajournal.org
Allopurinol is metabolized to oxipurinol, and hypouricaemic efficacy of allopurinol is due …
Objective: To study and compare the bioavailability and bioequivalence of two allopurinol 300 …

Relationships Between Allopurinol Dose, Oxypurinol Concentration and Urate‐Lowering Response—In Search of a Minimum Effective Oxypurinol Concentration

LK Stamp, PT Chapman, M Barclay… - Clinical and …, 2020 - Wiley Online Library
… to allopurinol and the conversion of allopurinol to oxypurinol, and to determine a minimum
therapeutic oxypurinol … , controlled, parallel-group, comparative clinical trial were analyzed. …

An allopurinol adherence tool using plasma oxypurinol concentrations

N Smith‐Diaz, SL Stocker, LK Stamp… - … Pharmacology, 2023 - Wiley Online Library
… and evaluate an allopurinol adherence tool based on steadystate oxypurinol plasma
concentrations, allopurinol’s active metabolite. Methods. Plasma oxypurinol concentration were …

Pharmacokinetics, pharmacodynamics, and safety of verinurad with and without allopurinol in healthy Asian, Chinese, and non‐Asian participants

S Johansson, D Han, T Hunt, K Björck… - Pharmacology …, 2022 - Wiley Online Library
… among patients with gout; 18 this study also showed that allopurinol does not influence the
pharmacokinetics of verinurad. Oxypurinol exposure was lower on day 7/9 compared with …

The impact of genetic variability in urate transporters on oxypurinol pharmacokinetics

HZ Hishe, SL Stocker, LK Stamp… - Clinical and …, 2023 - Wiley Online Library
allopurinol treatment response, however, the association with plasma allopurinol or oxypurinol
… extensively studied for an association with altered oxypurinol pharmacokinetics (PKs). …

[HTML][HTML] Allopurinol and oxypurinol differ in their strength and mechanisms of inhibition of xanthine oxidoreductase

M Sekine, K Okamoto, EF Pai, K Nagata… - Journal of Biological …, 2023 - ASBMB
oxypurinol was less effective than allopurinol both in vivo and in vitro. We show that upon
reoxidation to Mo(VI), oxypurinol … , hypoxanthine, or allopurinol is required for reformation of the …