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Drug interactions

Brexpiprazole + Diphenoxylate-atropine

Severity: Moderate

Brexpiprazole 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

Diphenoxylate is an opioid and brexpiprazole is a sedating antipsychotic, so together they may increase drowsiness and impair psychomotor performance. Risk is greatest with higher doses or in older patients.

What this interaction means in plain words

Brexpiprazole 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.

Brexpiprazole belongs to Central Nervous System; Diphenoxylate-atropine belongs to Gastrointestinal Tract.

Evidence level: Low

Why it happens

Additive CNS depression.

What to do

Counsel patients about drowsiness and avoid driving until response is known; use the lowest effective antidiarrheal dose and for the shortest time.

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 Brexpiprazole with Diphenoxylate-atropine?

MediHelp rates the interaction as moderate. Brexpiprazole 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. Diphenoxylate is an opioid and brexpiprazole is a sedating antipsychotic, so together they may increase drowsiness and impair psychomotor performance. Risk is greatest with higher doses or in older patients.

How serious is the interaction between Brexpiprazole 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: Counsel patients about drowsiness and avoid driving until response is known; use the lowest effective antidiarrheal dose and for the shortest time.

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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