Drug interactions
Diphenoxylate-atropine + Ephedrine
Severity: Minor
Diphenoxylate-atropine and Ephedrine: 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
Ephedrine is a sympathomimetic stimulant, while atropine can raise heart rate and both may increase tachycardia. No meaningful sedation interaction is established.
What this interaction means in plain words
Diphenoxylate-atropine and Ephedrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Diphenoxylate-atropine belongs to Gastrointestinal Tract; Ephedrine belongs to Cardiovascular.
Why it happens
Additive sympathomimetic and antimuscarinic effects on heart rate; the sedation effect is not established.
What to do
Monitor heart rate and blood pressure when used together, particularly in patients with cardiac disease.
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 Ephedrine
- Ephedrine + Isocarboxazid Contraindicated
- Ephedrine + Phenelzine Contraindicated
- Ephedrine + Procarbazine Contraindicated
- Ephedrine + Rasagiline Contraindicated
- Ephedrine + Selegiline Contraindicated
- Ephedrine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Diphenoxylate-atropine with Ephedrine?
MediHelp rates the interaction as minor. Diphenoxylate-atropine and Ephedrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Ephedrine is a sympathomimetic stimulant, while atropine can raise heart rate and both may increase tachycardia. No meaningful sedation interaction is established.
How serious is the interaction between Diphenoxylate-atropine and Ephedrine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rate and blood pressure when used together, particularly in patients with cardiac disease.
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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