Table 2: Applicability of the proposed HPTLC method for determination of rifaximin in pharmaceutical formulation.

DrugBrand nameAmount of rifaximin present (mg per tablet)% amount of rifaximin foundaSD% RSD

RifaximinRCIFAX40098.261.581.61
RCIFAX20096.691.201.24
RIFAGUT20095.591.681.76
TORFIX20098.021.661.69
RIXMIN20097.221.011.04

Average of three replicates.