Drug interactions
Henbane + Trospium
Severity: Moderate
Henbane and Trospium: 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 hyoscyamine and scopolamine, which are antimuscarinic alkaloids. Combined with trospium it can produce additive anticholinergic effects including dry mouth, constipation, urinary retention, tachycardia and confusion.
What this interaction means in plain words
Henbane and Trospium 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 belladonna alkaloids.
What to do
Avoid concurrent use of henbane products with trospium; if unavoidable, monitor for anticholinergic toxicity.
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 Trospium
- Clozapine + Trospium Major
- Pramlintide + Trospium Major
- Thioridazine + Trospium Major
- Trihexyphenidyl + Trospium Major
- Aclidinium + Trospium Moderate
- Amantadine + Trospium Moderate
Frequently asked questions
Can I take Henbane with Trospium?
MediHelp rates the interaction as moderate. Henbane and Trospium 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 hyoscyamine and scopolamine, which are antimuscarinic alkaloids. Combined with trospium it can produce additive anticholinergic effects including dry mouth, constipation, urinary retention, tachycardia and confusion.
How serious is the interaction between Henbane and Trospium?
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 concurrent use of henbane products with trospium; if unavoidable, monitor for anticholinergic toxicity.
What other medicines interact with Trospium?
MediHelp also lists interactions of Trospium with, for example, Clozapine, Pramlintide, Thioridazine. The full list is on the Trospium page.
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