Drug interactions
Baclofen + Difenoxin
Severity: Moderate
Baclofen and Difenoxin: 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
Difenoxin is an opioid antidiarrheal and the active metabolite of diphenoxylate. It can add to the sedative effect of baclofen, causing drowsiness and, at high doses, respiratory depression.
What this interaction means in plain words
Baclofen and Difenoxin 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.
Baclofen belongs to Musculoskeletal; Difenoxin belongs to Gastrointestinal Tract.
Why it happens
Additive CNS depression from opioid receptor agonism and baclofen GABA-B agonism.
What to do
Use the lowest effective doses and monitor for sedation, especially in children and the elderly. Advise avoiding alcohol and driving.
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 Baclofen and Difenoxin, 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 14 days on the web. No card needed.
Other interactions of Baclofen
Other interactions of Difenoxin
Frequently asked questions
Can I take Baclofen with Difenoxin?
MediHelp rates the interaction as moderate. Baclofen and Difenoxin 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. Difenoxin is an opioid antidiarrheal and the active metabolite of diphenoxylate. It can add to the sedative effect of baclofen, causing drowsiness and, at high doses, respiratory depression.
How serious is the interaction between Baclofen and Difenoxin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use the lowest effective doses and monitor for sedation, especially in children and the elderly. Advise avoiding alcohol and driving.
What other medicines interact with Baclofen?
MediHelp also lists interactions of Baclofen with, for example, Alfentanil, Amobarbital, Belladonna and opium. The full list is on the Baclofen 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.
