Comparison of Rheological, Drug Release, and Mucoadhesive Characteristics upon Storage between Hydrogels with Unmodified or Beta-Glycerophosphate-Crosslinked Chitosan

Table 2

Time intervals applied for stability studies [26].

Stability studies	Storage conditions	The minimum period of storage	Time intervals (months)
Long term	25 ± 2°C/60 ± 5% RH	12 months	1, 3, 6, 12
	4 ± 2°C	6 months	1, 3, 6
Accelerated	40± 2°C/75 ± 5% RH	6 months	1, 3, 6