Table II.

Physical Properties of Compressed Tablets

Formulation code	PrH1	PrH2	PrH3	PrH4	PrK1	PrK2	PrK3	PrK4
Drug content (mg/tab)	81.2 ± 1.6	80.3 ± 1.7	80.8 ± 1.2	80.2 ± 0.5	80.1 ± 0.5	80.3 ± 0.9	80.9 ± 0.8	81.6 ± 0.9
Weight variation	±4.9	±4.6	±5.2	±4.6	±4.4	±4.8	±4.3	±4.5
Hardness (kg/cm2)	5.2 ± 0.5	5.1 ± 0.3	5.4 ± 0.6	5.3 ± 0.8	5.4 ± 0.3	5.2 ± 0.6	5.1 ± 0.5	5.3 ± 0.3
Friability (%)	0.91	0.81	0.83	0.75	0.85	0.76	0.72	0.89