Formulation and Characterization of Drug Loaded Nonionic Surfactant Vesicles (Niosomes) for Oral Bioavailability Enhancement

Table 2

Degree of sedimentation of TDF loaded niosomes after being stored at 4°C for 3 months.

Formulation code	0 day	15 days	30 days	45 days	60 days	90 days
F4	−	−	+	+	++	+++
F9	−	−	+	+	++	++
F14	−	−	−	−	+	+
F19	−	−	+	+	++	++