% degradation  Drug recovery %
UPLC method FDSFS
5 98.90 98.10
10 98.88 99.20
30 99.30 98.40
50 100.40 98.20
90 100.50 99.30
Mean 99.60 98.64
SD 0.80 0.57
Table 5: The determination of atomoxetine HCl in a mixture of its acid degradation products in laboratory prepared mixture by the proposed methods.