Drug interactions
Henbane + Meclizine
Severity: Moderate
Henbane and Meclizine: 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
Henbane contains tropane alkaloids such as hyoscyamine and scopolamine, which are strongly anticholinergic. With meclizine this may cause additive dry mouth, urinary retention, tachycardia, confusion and sedation.
What this interaction means in plain words
Henbane and Meclizine 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
Additive antimuscarinic effects from tropane alkaloids and meclizine.
What to do
Avoid combined use where possible, since henbane content is variable and toxic. Monitor for anticholinergic toxicity if both are taken.
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 Meclizine
Frequently asked questions
Can I take Henbane with Meclizine?
MediHelp rates the interaction as moderate. Henbane and Meclizine 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. Henbane contains tropane alkaloids such as hyoscyamine and scopolamine, which are strongly anticholinergic. With meclizine this may cause additive dry mouth, urinary retention, tachycardia, confusion and sedation.
How serious is the interaction between Henbane and Meclizine?
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 combined use where possible, since henbane content is variable and toxic. Monitor for anticholinergic toxicity if both are taken.
What other medicines interact with Meclizine?
MediHelp also lists interactions of Meclizine with, for example, Belladonna and opium, Benzhydrocodone / acetaminophen, Brexanolone. The full list is on the Meclizine page.
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