Subchronic high-dose memantine impairs memory performances in wild-type control mice.
Subchronic memantine improves memory impairments in 5XFAD mice at 6–7 months of age.
Cognitive benefits of memantine in 5XFAD mice are independent of Aβ reductions.
Memantine cannot rescue more profound memory deficits in 5XFAD mice at advanced age.