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Drug interactions

Baclofen + Diphenoxylate-atropine

Severity: Moderate

Baclofen and Diphenoxylate-atropine: 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

Baclofen and diphenoxylate can both depress the CNS, producing additive sedation, weakness and in some cases respiratory depression. Risk is greater with higher doses or renal impairment.

What this interaction means in plain words

Baclofen and Diphenoxylate-atropine 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; Diphenoxylate-atropine belongs to Gastrointestinal Tract.

Evidence level: Moderate

Why it happens

Additive CNS depression via GABA-B agonism and opioid receptor agonism.

What to do

Use the lowest effective doses and monitor sedation and respiration, especially in renal impairment.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Baclofen with Diphenoxylate-atropine?

MediHelp rates the interaction as moderate. Baclofen and Diphenoxylate-atropine 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 and diphenoxylate can both depress the CNS, producing additive sedation, weakness and in some cases respiratory depression. Risk is greater with higher doses or renal impairment.

How serious is the interaction between Baclofen and Diphenoxylate-atropine?

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 sedation and respiration, especially in renal impairment.

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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