Table 1.

Composition of PVP-based MNs

Formulation code	PVP type and concentration (%, w/w)	Model drug	Drug concentration in hydrogel (mg/g)
P1	PVP K29–32/30	–	–
P2	PVP K30/40	–	–
P3	PVP K15/60	–	–
F1	PVP K29–32/30	FS	2
F2	PVP K29–32/30	FD70	2
F3	PVP K29–32/30	FD150	2
F4	PVP K29–32/30	FD70	10
F5	PVP K15/60	FD70	2
F6	PVP K30/40	FD70	2