Table 2.

Results of drug loadings according to amount of surfactant (n = 3)

Formulation	Polymer (mg)	PVA (mg)	Int. phase (mL)	Ext. phase (mL)	EE (%)
1	165	0	12	22	–
2	165	25	12	22	18.2 ± 5.8
3	165	35	12	22	23.4 ± 6.2
4	165	50	12	22	45.3 ± 2.9
5	165	75	12	22	28.8 ± 4.9
6	165	100	12	22	15.2 ± 4.2

Abbreviations: EE, entrapment efficacy; PVA, polyvinyl alcohol.