Table 4.

Design model indicating the levels of variables and responses.

Run	Cumulative percentage coating (CPC) (%)	Coating efficiency (CE) (%)	Drug release (%)	Percentage size of spherules (%)	Drug content (%)
1	300	65	41.66	52.04	53.1
2	300	95	49	69.11	65.4
3	150	65	63.01	67.22	57.01
4	150	65	46.3	83.5	53.01
5	150	35	59.4	79.62	49.25
6	0	65	58.02	83.01	55.74
7	300	35	39.01	52.36	52.1
8	150	65	53.68	69.74	49.65
9	0	35	79.89	85.54	50.7
10	150	95	59.4	74.2	66.2
11	0	95	67.5	82.9	65.4