Xanfeb DSR® contain 40 mg febuxostat and 100 mg diclofenac

Claimed taken (μg/ml)

Pure added (μg/mL)

Mean*% ± SD

Pure found (μg/mL)

R% of pure added

FEB

0.8

1.6

100.28 ± 1.185

1.586

99.13

0.8

2.4

2.409

100.38

0.8

2.8

2.837

101.32

Mean % ± SD

100.28% ± 1.099

DIC

2

1

99.92 ± 1.036

1.021

102.10

2

2

1.971

98.55

2

3

2.979

99.30

Mean % ± SD

99.98% ± 1.871