Table 2.

Screening results of the matrix dosage.

Matrix Name	Dosage/(g/100mL)	Character	Stickiness	Formability	Stability
Carbomer	0.3	White semi-solid	-	-	++
	0.6	White semi-solid	++	+	++
	0.9	White semi-solid	++	++	++
Gelatin	0.3	Light yellow semi-solid	-	-	-
	0.6	Light yellow semi-solid	+	-	-
	0.9	Light yellow semi-solid	+	+	-
Chitosan	0.3	Milky precipitate	-	-	-
	0.6	Milky precipitate	-	-	-
	0.9	Milky precipitate	-	-	-

Note: ‘-’ means poor (the viscosity range is between 1 and 100 cP; not forming; stratification); ‘+’ means general (the viscosity range is between 100 and 700 cP; forming; not easy to stratify); ‘++’ means good (the viscosity range is between 700 and 1100 cP; good stability; not stratified).