Drug interactions
Atenolol + Diphenoxylate-atropine
Severity: Minor
Atenolol and Diphenoxylate-atropine: minor 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
Anticholinergics such as atropine slow gastric emptying and gut motility, which may slightly increase atenolol absorption and raise its effect. The change is small and rarely of clinical importance.
What this interaction means in plain words
Atenolol and Diphenoxylate-atropine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Atenolol belongs to Cardiovascular; Diphenoxylate-atropine belongs to Gastrointestinal Tract.
Why it happens
Reduced gastrointestinal motility from atropine may increase atenolol absorption; the mechanism is not firmly established.
What to do
No specific action is needed; check heart rate and blood pressure if bradycardia or dizziness occurs.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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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
Other interactions of Atenolol
- Amifostine + Atenolol Major
- Amiodarone + Atenolol Major
- Atenolol + Atenolol-chlorthalidone Major
- Atenolol + Betaxolol Major
- Atenolol + Bisoprolol Major
- Atenolol + Carvedilol Major
Frequently asked questions
Can I take Atenolol with Diphenoxylate-atropine?
MediHelp rates the interaction as minor. Atenolol and Diphenoxylate-atropine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Anticholinergics such as atropine slow gastric emptying and gut motility, which may slightly increase atenolol absorption and raise its effect. The change is small and rarely of clinical importance.
How serious is the interaction between Atenolol and Diphenoxylate-atropine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action is needed; check heart rate and blood pressure if bradycardia or dizziness occurs.
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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