Drug interactions
Belladonna and opium + Galantamine
Severity: Moderate
Belladonna and opium and Galantamine: moderate 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
The belladonna component is antimuscarinic and opposes galantamine, while the opium component adds sedation and may worsen cognition and confusion in dementia patients. Together the combination can reduce the benefit of galantamine.
What this interaction means in plain words
Belladonna and opium and Galantamine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken.
Why it happens
Antimuscarinic antagonism of cholinesterase inhibition, plus additive CNS depression from opium.
What to do
Use an alternative where possible. If used, monitor cognition, sedation and clinical response to galantamine.
What to ask your pharmacist
- Should I take them at different times of day?
- Does the dose of either medicine need to change?
- Is there anything I should avoid, such as alcohol or certain foods, while on both?
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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
Frequently asked questions
Can I take Belladonna and opium with Galantamine?
MediHelp rates the interaction as moderate. Belladonna and opium and Galantamine can affect each other. The combination is often manageable, but it may need a change of dose, a change of timing, or extra checks while both are taken. The belladonna component is antimuscarinic and opposes galantamine, while the opium component adds sedation and may worsen cognition and confusion in dementia patients. Together the combination can reduce the benefit of galantamine.
How serious is the interaction between Belladonna and opium and Galantamine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use an alternative where possible. If used, monitor cognition, sedation and clinical response to galantamine.
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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