Table 3.

Physical properties of propranolol HCl buccoadhesive tablets. Data are expressed as mean ± SD

Formulation code	Thickness (mm) n = 10	Weight variation (g) n = 10	Hardness (Kp) n = 10	Friability (%) n = 20
F1	2.41 ± 0.05	0.166 ± 0.004	7.13 ± 2.36	0.18
F2	2.16 ± 0.04	0.157 ± 0.005	6.80 ± 2.9	0.80
F3	2.16 ± 0.05	0.158 ± 0.004	6.43 ± 1.67	0.81
F4	2.17 ± 0.12	0.161 ± 0.006	14.12 ± 1.59	0.18
F5	2.03 ± 0.05	0.158 ± 0.004	10.93 ± 1.66	0.43
F6	2.06 ± 0.07	0.162 ± 0.005	9.24 ± 1.85	0.24
F7	2.26 ± 0.10	0.162 ± 0.004	8.70 ± 1.17	0.00
F8	2.23 ± 0.06	0.160 ± 0.005	7.41 ± 1.15	0.22
F9	2.19 ± 0.05	0163 ± 0.003	5.27 ± 1.17	0.34
F10	2.19 ± 0.08	0.159 ± 0.005	4.59 ± 2.33	1.18
F11	2.19 ± 0.14	0.163 ± 0.004	9.94 ± 1.69	0.49
F12	2.19 ± 0.09	0.158 ± 0.004	11.37 ± 2.89	0.16
F13	2.24 ± 0.09	0.159 ± 0.005	10.24 ± 0.70	0.75