Brand   Labeled amount Amount found a %Labeled amount % RSD
Tizan 2.288 2.2732 ± 0.0048 99.355±0.2631 0.2648
Sirdalud 2.288 2.2742 ± 0.0043 99.399±0.3373 0.3394
a: Average of Four Readings
Table 4: Results of estimation of Tizanidine Hydrochloride in Tablet dosage forms.