Memantine ER/Donepezil: A Review in Alzheimer’s Disease
Abstract
A once-daily, fixed-dose combination of memantine extended-release (ER)/donepezil 28/10 mg (Namzaric™) is available in the USA for patients with moderate to severe Alzheimer's disease (AD) on stable memantine and donepezil therapy. The fixed-dose formulation is bioequivalent to coadministration of the individual drugs. In a 24-week, phase III trial in patients with moderate to severe AD, addition of memantine ER 28 mg once daily to stable cholinesterase inhibitor (ChEI) therapy was more effective than add-on placebo on measures of cognition, global clinical status, dementia behaviour and semantic processing ability, although between-group differences on a measure of daily function did not significantly differ. In subgroup analyses in donepezil-treated patients, add-on memantine ER was more effective than add-on placebo on measures of cognition, dementia behaviour and semantic processing, although there were no significant between-group differences on measures of global clinical status and daily function. Memantine ER plus ChEI combination therapy was generally well tolerated in the phase III trial, with diarrhoea, dizziness and influenza occurring at least twice as often with add-on memantine ER as add-on placebo in donepezil-treated patients. Thus, memantine ER plus donepezil combination therapy is an effective and well tolerated treatment option for patients with moderate to severe AD. The fixed-dose combination is potentially more convenient than coadministration of the individual agents.
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In 2014, the FDA approved a fixed-dose combination of donepezil and memantine for the symptomatic treatment of moderate-to-severe AD.
“Notably, in 2014, the Food and Drug Administration (FDA) approved a fixed-dose combination of AChE inhibitor (AChEI) donepezil (1) and NMDAR blocker memantine (2) for the symptomatic treatment of moderate-to-severe AD (Figure 4).46”
From From combinations to multitarget-directed ligands: A continuum in Alzheimer’s disease polypharmacology (2021) · cites this paper as [46]
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- Authors
- Greig, S. L.
- Affiliations
- Springer Nature (Germany) (DE)
- Corresponding author
- Greig, Sarah L.
- ORCID
- Greig, Sarah L.
- Venue
- CNS Drugs
- Published
- 2015-10-30
- Volume
- 29
- Issue
- 11
- Pages
- 963-970
- ISSN
- 1172-7047 (ISSN-L)
- 1179-1934
- OpenAlex
- W1957558887
- Cited by
- 69
- References
- 24
- Citations by year
- 2026: 6 · 2025: 7 · 2024: 10 · 2023: 3 · 2022: 6 · 2021: 3 · 2020: 9 · 2019: 6 · 2018: 7 · 2017: 8 · 2016: 3 · 2015: 1
- FWCI
- 4.55
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- CNS Drugs (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Pharmacology › Cholinesterase and Neurodegenerative Diseases
- Health Sciences › Medicine › Psychiatry and Mental health › Dementia and Cognitive Impairment Research
- Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
- Keywords
- donepezil, Alzheimer's disease, fixed-dose combination, cholinesterase inhibitors, adjunctive therapy, bioequivalence, cognitive function, semantic processing, tolerability, drug safety
- MeSH terms
- Alzheimer Disease, Drug Combinations, Humans, Memantine, Piperidines, Clinical Trials, Phase III as Topic, Nootropic Agents
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
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