Drug interactions
Caffeine + Diphenoxylate-atropine
Severity: Minor
Caffeine 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
Caffeine is a stimulant that may partly offset the sedation caused by diphenoxylate. The net effect is unpredictable and caffeine does not reliably reverse opioid-related CNS or respiratory depression.
What this interaction means in plain words
Caffeine 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.
Caffeine belongs to Miscellaneous; Diphenoxylate-atropine belongs to Gastrointestinal Tract.
Why it happens
Pharmacodynamic opposition between CNS stimulation and opioid sedation.
What to do
No specific action is needed; do not rely on caffeine to counter sedation from diphenoxylate.
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 Caffeine
- Caffeine + Ephedrine Major
- Caffeine + Fezolinetant Major
- Caffeine + Methylenedioxymethamphetamine Major
- Caffeine + Selegiline transdermal Major
- Adenosine + Caffeine Moderate
- Benzphetamine + Caffeine Moderate
Frequently asked questions
Can I take Caffeine with Diphenoxylate-atropine?
MediHelp rates the interaction as minor. Caffeine 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. Caffeine is a stimulant that may partly offset the sedation caused by diphenoxylate. The net effect is unpredictable and caffeine does not reliably reverse opioid-related CNS or respiratory depression.
How serious is the interaction between Caffeine 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; do not rely on caffeine to counter sedation from diphenoxylate.
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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