Drugs

Label claim

mg tab^-1

Amount added in mg

(%)

Total amount

(mg)

Actual conc.

taken        (ng spot^-1)

For HPTLC (n= 6)

calculated conc. ±  SD

RSD (%)

Recovery (%)

Levocetirizine

   5

2.5

7.5

600

605.61± 3.15

0.52

101.87

5

10

800

799.0± 10.47

1.31

99.75

7.5

12.5

1000

998.6± 9.19

0.92

99.72

Montelukast sodium

10

5

15

1200

1212.0± 7.15

0.59

102.00

10

20

1600

1604.0± 6.73

0.42

100.55

15

25

2000

2001.9± 23.22

1.16

100.19

Drugs

Label claim

mg tab^-1

Amount added in mg

(%)

Total amount

(mg)

Actual      conc. Taken        (µg mL^-1)

For HPLC (n= 6)

calculated conc. ±  SD

RSD (%)

Recovery (%)

Levo

cetirizine

       5

2.5

(50%)

7.5

3

3.028 ± 0.03

0.98

100.94

5

(100%)

    10

4

4.048 ± 0.03

0.79

101.20

7.5 (150%)

   12.5

     5

5.006± 0.02

0.39

100.12

Montelukast sodium

      10

5

(50%)

    15

6

6.16 ± 0.03

0.48

102.66

10

(100%)

20

8

8.092 ± 0.06

0.74

101.16

15

(150%)

25

10

10.04 ± 0.02

0.19

100.40