Drug interactions
Galantamine + Scopolamine
Severity: Moderate
Galantamine and Scopolamine: 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
Galantamine enhances cholinergic transmission by inhibiting cholinesterase, while scopolamine blocks muscarinic receptors. They oppose each other, so the efficacy of both may be reduced and cognitive benefit from galantamine may be lost.
What this interaction means in plain words
Galantamine and Scopolamine 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.
Galantamine belongs to Central Nervous System; Scopolamine belongs to Respiratory.
Why it happens
Pharmacodynamic antagonism between cholinesterase inhibition and muscarinic blockade.
What to do
Avoid scopolamine in patients receiving galantamine when alternatives exist, and monitor cognition and symptom control if both are used.
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 Scopolamine
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 Galantamine with Scopolamine?
MediHelp rates the interaction as moderate. Galantamine and Scopolamine 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. Galantamine enhances cholinergic transmission by inhibiting cholinesterase, while scopolamine blocks muscarinic receptors. They oppose each other, so the efficacy of both may be reduced and cognitive benefit from galantamine may be lost.
How serious is the interaction between Galantamine and Scopolamine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid scopolamine in patients receiving galantamine when alternatives exist, and monitor cognition and symptom control if both are used.
What other medicines interact with Scopolamine?
MediHelp also lists interactions of Scopolamine with, for example, Benzhydrocodone / acetaminophen, Buprenorphine long-acting, Buprenorphine subdermal implant. The full list is on the Scopolamine page.
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