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Open AccessReview

Side Effects and Interactions of the Xanthine Oxidase Inhibitor Febuxostat

Internal Medicine, Medical Faculty, Ludwig Maximilians University of Munich, 80539 Munich, Germany
Author to whom correspondence should be addressed.
Pharmaceuticals 2018, 11(2), 51;
Received: 26 March 2018 / Revised: 21 May 2018 / Accepted: 21 May 2018 / Published: 25 May 2018
The paper addresses the safety of febuxostat and summarizes reports on side effects and interactions of febuxostat published by the cut-off date (last day of literature search) of 20 March 2018. Publications on side effects and the interactions of febuxostat were considered. Information concerning the occurrence of side effects and interactions in association with the treatment with febuxostat was collected and summarized in the review. The incidence of severe side effects was much less frequent than mild side effects (1.2–3.8% to 20.1–38.7%). The rate and range of febuxostat side effects are low at doses of up to 120 mg and only increase with a daily dose of over 120 mg. The publications reveal no age-dependent increase in side effects for febuxostat. In patients with impaired renal function, no increase in adverse events is described with a dose of up to 120 mg of febuxostat per day. Patients with impaired liver function had no elevated risk for severe side effects. A known allopurinol intolerance increases the risk of skin reactions during treatment with febuxostat by a factor of 3.6. No correlation between treatment with febuxostat and agranulocytosis has been confirmed. Possible interactions with very few medications (principally azathioprine) are known for febuxostat. Febuxostat is well tolerated and a modern and safe alternative to allopurinol therapy. View Full-Text
Keywords: febuxostat; side effects; interactions febuxostat; side effects; interactions
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Jordan, A.; Gresser, U. Side Effects and Interactions of the Xanthine Oxidase Inhibitor Febuxostat. Pharmaceuticals 2018, 11, 51.

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