Statistical Optimization and In Vitro Evaluation of Metformin Hydrochloride Asymmetric Membrane Capsules Prepared by a Novel Semiautomatic Manufacturing Approach

Table 1

Formulation composition of AMCs of CAB.

Formulation code	Ingredients
	CAB (% 𝑤/𝑣)	PG (% 𝑣/𝑣)	Ethanol (% 𝑣/𝑣)	Acetone (% 𝑣/𝑣)
CAB-10% PG-10%	10	10	30	70
CAB-10% PG-15%	10	15	30	70
CAB-10% PG-20%	10	20	30	70
CAB-12% PG-10%	12	10	30	70
CAB-12% PG-15%	12	15	30	70
CAB-12% PG-20%	12	20	30	70
CAB-14% PG-10%	14	10	30	70
CAB-14% PG-15%	14	15	30	70
CAB-14% PG-20%	14	20	30	70
CAB-16% PG-10%	16	10	30	70
CAB-16% PG-15%	16	15	30	70
CAB-16% PG-20%	16	20	30	70

CAB: cellulose acetate butyrate; PG: propylene glycol.