Optimization Studies on Compression Coated Floating-Pulsatile Drug Delivery of Bisoprolol

Table 4

Concentrations of the variables according to the coded levels used in factorial design.

Variables used	Coded levels
	−1	0	+1
Polyox WSR205 (in mg)	45	55	65
Polyox WSR N12K (in mg)	65	75	85