Drug name Recovery at 80% conc. (%) Recovery at 100% conc. (%) Recovery at 120% conc. (%) Average Recovery (%) RSD Amlodipine besylate 101.57 98.80 100.17 100.18 1.38% Losartan potassium 99.91 99.68 99.87 100.79 0.59% Valsartan 100.25 100.00 101.10 100.45 0.58% Atorvastatin calcium 98.37 101.61 99.13 100.8 1.69%

Table 3: Recovery results for standard solution plus excipients for Amlodipine besylate, Losartan potassium, Valsartan and Atorvastatin calcium respectively.