(a) By HPTLC
Drugs
Label claim
mg tablet-1
For HPTLC (n= 6)
Drug content
(%) ± SD
RSD (%)
Levocetirizine
5
99.72 ± 0.97
0.98
Montelukast sodium
10
100.19 ± 1.06
1.06
(b) By HPLC
For HPLC (n= 6)
RSD(%)
99.76± 0.55
0.56
100.15 ± 0.71
0.71
Table 5: Analysis of a marketed formulation (Assay)