Drug interactions
Diphenoxylate-atropine + Henbane
Severity: Major
Diphenoxylate-atropine and Henbane: major 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 atropine, it can cause additive anticholinergic toxicity such as dry mouth, urinary retention, tachycardia, confusion and hyperthermia.
What this interaction means in plain words
Diphenoxylate-atropine and Henbane can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Why it happens
Additive antimuscarinic effects from tropane alkaloids with variable content in herbal products.
What to do
Avoid the combination. Monitor for anticholinergic toxicity if exposure occurs and treat supportively.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Diphenoxylate-atropine
- Diphenoxylate-atropine + Isocarboxazid Contraindicated
- Diphenoxylate-atropine + Phenelzine Contraindicated
- Diphenoxylate-atropine + Tranylcypromine Contraindicated
- Alfentanil + Diphenoxylate-atropine Major
- Alvimopan + Diphenoxylate-atropine Major
- Amitriptyline + Diphenoxylate-atropine Major
Frequently asked questions
Can I take Diphenoxylate-atropine with Henbane?
MediHelp rates the interaction as major. Diphenoxylate-atropine and Henbane can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Henbane contains hyoscyamine and scopolamine, which are antimuscarinic alkaloids. Combined with atropine, it can cause additive anticholinergic toxicity such as dry mouth, urinary retention, tachycardia, confusion and hyperthermia.
How serious is the interaction between Diphenoxylate-atropine and Henbane?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination. Monitor for anticholinergic toxicity if exposure occurs and treat supportively.
What other medicines interact with Diphenoxylate-atropine?
MediHelp also lists interactions of Diphenoxylate-atropine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Diphenoxylate-atropine page.
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