Pharmaceutical preparation Proposed method Mean ± S.D Reference method Mean ± S.D Neurontin capsules 400 mg Gabapentin /capsule 99.68±1.02 99.55 ± 1.45 t= 0.37 (2.78)* F= 2.02 (5.05)** 10 mg Baclofen /tablet 99.85±0.98 *Tabulated t-value for P=0.05 ** Tabulated F-value for P=0.05

Table 5: Determination of Gabapentin in Neurontin and Baclofen using proposed method compared with reference methods.