Drug interactions
Memantine-donepezil + Quinupristin / dalfopristin
Severity: Minor
Memantine-donepezil and Quinupristin / dalfopristin: minor interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Quinupristin/dalfopristin inhibits CYP3A4 and may raise donepezil concentrations. The increase is probably modest, but it could enhance cholinergic adverse effects during a short antibiotic course.
What this interaction means in plain words
Memantine-donepezil and Quinupristin / dalfopristin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Inhibition of CYP3A4-mediated donepezil metabolism by quinupristin/dalfopristin.
What to do
No empirical dose change is usually required; monitor heart rate and gastrointestinal tolerance during the antibiotic course.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Memantine-donepezil and Quinupristin / dalfopristin, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 14 days on the web. No card needed.
Other interactions of Memantine-donepezil
- Dronedarone + Memantine-donepezil Contraindicated
- Memantine-donepezil + Thioridazine Contraindicated
- Amantadine + Memantine-donepezil Major
- Amiodarone + Memantine-donepezil Major
- Amisulpride + Memantine-donepezil Major
- Amitriptyline + Memantine-donepezil Major
Frequently asked questions
Can I take Memantine-donepezil with Quinupristin / dalfopristin?
MediHelp rates the interaction as minor. Memantine-donepezil and Quinupristin / dalfopristin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Quinupristin/dalfopristin inhibits CYP3A4 and may raise donepezil concentrations. The increase is probably modest, but it could enhance cholinergic adverse effects during a short antibiotic course.
How serious is the interaction between Memantine-donepezil and Quinupristin / dalfopristin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No empirical dose change is usually required; monitor heart rate and gastrointestinal tolerance during the antibiotic course.
What other medicines interact with Memantine-donepezil?
MediHelp also lists interactions of Memantine-donepezil with, for example, Dronedarone, Thioridazine, Amantadine. The full list is on the Memantine-donepezil page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
