Table 4.

Summary of data for the determination of pregabalin in pharmaceutical preparations by standard addition method

Formulations	Amount (μg/ml)			Recovery (%)	RSD (%)	SAEb
	Taken	Added	Found ± SDa
Capsules
Gabanext-75	1.00	0.50	1.499 ± 0.008	99.920	0.503	0.0034
	1.00	2.00	3.001 ± 0.012	100.026	0.399	0.0054
	1.00	3.50	4.499 ± 0.011	99.982	0.233	0.0047
Neugaba-75	1.00	0.50	1.499 ± 0.004	99.973	0.238	0.0016
	1.00	2.00	2.999 ± 0.011	99.987	0.350	0.0047
	1.00	3.50	4.498 ± 0.008	99.965	0.176	0.0035
Maxgalin-75	1.00	0.50	1.500 ± 0.009	99.973	0.590	0.0040
	1.00	2.00	2.999 ± 0.014	99.960	0.474	0.0064
	1.00	3.50	4.500 ± 0.008	100.001	0.175	0.0035
Pregalin- 75	1.00	0.50	1.499 ± 0.014	99.947	0.923	0.0062
	1.00	2.00	2.999 ± 0.009	99.973	0.284	0.0038
	1.00	3.50	4.498 ± 0.010	99.946	0.220	0.0044
Mahagaba-75	1.00	0.50	1.499 ± 0.008	99.973	0.473	0.0032
	1.00	2.00	3.001 ± 0.007	100.027	0.242	0.0033
	1.00	3.50	4.496 ± 0.006	99.920	0.152	0.0031

^aMean for 5 independent analyses;

^bSAE, standard analytical error.