Drug name 1st day µg/ml 2nd day µg/ml 3rd day µg/ml pooled average  pooled average % RSD
Amlodipine besylate 5.03 4.91 5.00 4.98 99.29 1.33%
Losartan potassium 49.60 49.21 50.18 49.66 99.33 0.98%
Valsartan 78.90 79.10 80.4 79.48 99.30 1.03%
Atorvastatin calcium 9.91 101.0 9.77 9.93 99.30 1.68%
Table 2: Intermediate precision Amlodipine besylate, Losartan potassium, Valsartan and Atorvastatin calcium respectively.