From:  Low serum urate levels are not associated with increased mortality risk during urate-lowering treatment in patients with gout

 Distribution of serum urate (sUA) strata during urate-lowering therapy (ULT) according to urate-lowering medications.

sUA (mg/dL)None
(n = 163)
Allopurinol
(n = 1,039)
Febuxostat
(n = 193)
Benzbromarone
(n = 206)
Other
(n = 17)
< 3.0
72/1,618 (4.4%)
015
(1.4 %)*
30
(15.5%)**
24
(11.7%)
3
(17.6%)
3.0–5.9
1,207/1,618 (74.6%)
46
(28.2%)
826
(79.5%)
154
(79.8%)
174
(84.5%)
7
(41.2%)
6.0–8.9
294/1,618 (18.2%)
90
(55.2%)
181
(17.4%)
8
(4.1 %)
8
(3.9%)
7
(41.2%)
≥ 9.0
45/1,618 (2.8%)
27
(16.6%)
17
(1.6%)
1
(0.5%)
00

Chi-square test, p < 0.001. *4/15 patients < 3 mg/dL were on allopurinol combined with benzbromarone; **9/30 patients < 3 mg/dL were on febuxostat combined with benzbromarone.