Table 3.

Physical appearance and apparent viscosities of propranolol HCl gel formulaions (F1−F18).

Formulation code	Physical appearance	Apparent viscosity	Formulation code	Physical appearance	Apparent viscosity
F1	Transparent, light green color, without lumps	Low	F10	Translucent, light yellow color, without lumps	Low
F2	Transparent, light green color, without lumps	Relatively high	F11	Translucent, light yellow color, without lumps	Relatively low
F3	Transparent, light green color, without lumps	high	F12	Translucent, light yellow color, without lumps	Relatively high
F4	Transparent, light green color, with lumps	Very high	F13	Translucent, light yellow color, without lumps	high
F5	Translucent, white color, without lumps	Low	F14	Translucent, light yellow color, with lumps	Very high
F6	Translucent, white color, without lumps	Relatively low	F15	Transparent, colorless, without lumps	Relatively low
F7	Translucent, white color, without lumps	Relatively high	F16	Transparent, colorless, without lumps	Relatively high
F8	Translucent, white color, without lumps	high	F17	Transparent, colorless, without lumps	high
F9	Translucent, white color, with lumps	Very high	F18	Transparent, colorless, with lumps	Very high