Drug interactions
Galantamine + Primidone
Severity: Minor
Galantamine and Primidone: 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
Primidone is metabolised to phenobarbital, which induces CYP3A4 and may lower galantamine levels with chronic use. The clinical effect is probably modest.
What this interaction means in plain words
Galantamine and Primidone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Galantamine belongs to Central Nervous System; Primidone belongs to Central Nervous System.
Why it happens
CYP3A4 induction by primidone and its metabolite phenobarbital increases galantamine clearance.
What to do
No empirical adjustment is needed; reassess cognitive response and adjust galantamine if benefit appears reduced.
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?
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Other interactions of Galantamine
- Galantamine + Memantine-donepezil Major
- Galantamine + Physostigmine Major
- Galantamine + Ponesimod Major
- Galantamine + Rivastigmine Major
- Amifampridine + Galantamine Moderate
- Amiodarone + Galantamine Moderate
Other interactions of Primidone
- Lorlatinib + Primidone Contraindicated
- Lurasidone + Primidone Contraindicated
- Primidone + Ranolazine Contraindicated
- Primidone + Sofosbuvir-velpatasvir-voxilaprevir Contraindicated
- Primidone + Voriconazole Contraindicated
- Abiraterone + Primidone Major
Frequently asked questions
Can I take Galantamine with Primidone?
MediHelp rates the interaction as minor. Galantamine and Primidone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Primidone is metabolised to phenobarbital, which induces CYP3A4 and may lower galantamine levels with chronic use. The clinical effect is probably modest.
How serious is the interaction between Galantamine and Primidone?
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 adjustment is needed; reassess cognitive response and adjust galantamine if benefit appears reduced.
What other medicines interact with Galantamine?
MediHelp also lists interactions of Galantamine with, for example, Memantine-donepezil, Physostigmine, Ponesimod. The full list is on the Galantamine page.
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