Drug interactions
Atropine + Benperidol
Severity: Moderate
Atropine and Benperidol: 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
Benperidol has some antimuscarinic activity, so adding atropine may increase anticholinergic effects such as confusion, constipation, urinary retention and tachycardia. Atropine may also reduce the antiparkinsonian-type tolerability concerns but can worsen psychotic symptoms or cognition in some patients.
What this interaction means in plain words
Atropine and Benperidol 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 muscarinic receptor blockade, with possible reduced gastrointestinal absorption of oral antipsychotic due to slowed motility.
What to do
Monitor for anticholinergic toxicity, cognitive changes and constipation, especially in older patients. Review the need for both drugs and use the lowest effective doses.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Atropine and Benperidol, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Atropine
- Atropine + Eluxadoline Major
- Atropine + Henbane Major
- Atropine + Pramlintide Major
- Abobotulinumtoxina + Atropine Moderate
- Aclidinium + Atropine Moderate
- Amantadine + Atropine Moderate
Frequently asked questions
Can I take Atropine with Benperidol?
MediHelp rates the interaction as moderate. Atropine and Benperidol 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. Benperidol has some antimuscarinic activity, so adding atropine may increase anticholinergic effects such as confusion, constipation, urinary retention and tachycardia. Atropine may also reduce the antiparkinsonian-type tolerability concerns but can worsen psychotic symptoms or cognition in some patients.
How serious is the interaction between Atropine and Benperidol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for anticholinergic toxicity, cognitive changes and constipation, especially in older patients. Review the need for both drugs and use the lowest effective doses.
What other medicines interact with Atropine?
MediHelp also lists interactions of Atropine with, for example, Eluxadoline, Henbane, Pramlintide. The full list is on the Atropine page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
