Table 5: Assay of tablets of investigated non-sedating antihistamines by the developed method and reported methods.

Authentic drugDosage form% Recoverya ± SD t-valuebF-valueb
Proposed methodReported method

CTZ Epirizine tablets 0.364.94
EBS Evastine tablets 0.221.77
FXDAllerfen tablets 0.222.36
KETZaditen tablets 0.551.00
LORMosedine tablets 1.721.66

Average of six determinations ± standard deviation.
bTheoretical values at 95% confidence limit; t = 2.228, F = 5.053.
*Reference [22].
**Reference [24].
***Reference [21].