Skip to content

Drug interactions

Clozapine + Difenoxin

Severity: Moderate

Clozapine 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 metabolite that can cause drowsiness, and with clozapine sedation may be additive. Both drugs slow gut motility, so constipation or ileus risk may also rise.

What this interaction means in plain words

Clozapine 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.

Clozapine belongs to Central Nervous System; Difenoxin belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive CNS depression and reduced gastrointestinal motility.

What to do

Monitor sedation and bowel function, and limit antidiarrheal use to short courses. Seek review if abdominal distension or constipation develops.

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.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Clozapine 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 7 days on the web. No card needed.

Frequently asked questions

Can I take Clozapine with Difenoxin?

MediHelp rates the interaction as moderate. Clozapine 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 metabolite that can cause drowsiness, and with clozapine sedation may be additive. Both drugs slow gut motility, so constipation or ileus risk may also rise.

How serious is the interaction between Clozapine 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: Monitor sedation and bowel function, and limit antidiarrheal use to short courses. Seek review if abdominal distension or constipation develops.

What other medicines interact with Clozapine?

MediHelp also lists interactions of Clozapine with, for example, Deferiprone, Irinotecan, Pimozide. The full list is on the Clozapine 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.

Browse A–Z · Drug interactions

Get the app Sign in