Table 5: Determination of SVS in tablets by the proposed and official methods.

Product^a	Pharmaceutical company (country of origin)	%Recovery^b ±SD
Product^a	Pharmaceutical company (country of origin)	Proposed method	Official method [2]
Adacor 20mg	Adamco Pharma (Syria)	101.30±1.50 t =1.94 F = 3.79	100.87±0.77 t =1.96
Simvacor 40mg	Alfares (Syria)	101.84±2.07 t =1.99 F = 3.08	101.00±1.18 t =1.47
Zocorine 10mg	Asia (Syria)	101.67±1.62 t =2.92 F = 1.26	101.93±1.44 t =2.31
Zukol 5mg	K.C. pharma (Syria)	100.75±0.81 t =2.05 F = 1.60	99.46±0.73 t =1.28

^a The dose is 5, 10, 20 and 40 mg expressed as simvastatin for all products.

^bFive independent analyses. At 95% confidence level t-value is 2.776 and F-value is 6.26.