Drug interactions
Brexpiprazole + Diphenoxylate
Severity: Moderate
Brexpiprazole and Diphenoxylate: 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 can cause drowsiness at higher doses and brexpiprazole is also sedating, so combined use may increase sedation and reduce alertness. The effect is typically manageable.
What this interaction means in plain words
Brexpiprazole and Diphenoxylate 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 belongs to Gastrointestinal Tract.
Why it happens
Additive CNS depression from opioid-receptor agonism and antipsychotic sedative activity.
What to do
Use the lowest effective diphenoxylate dose for the shortest time and monitor for sedation. Counsel patients not to drive if drowsy.
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?
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Other interactions of Brexpiprazole
Other interactions of Diphenoxylate
Frequently asked questions
Can I take Brexpiprazole with Diphenoxylate?
MediHelp rates the interaction as moderate. Brexpiprazole and Diphenoxylate 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 can cause drowsiness at higher doses and brexpiprazole is also sedating, so combined use may increase sedation and reduce alertness. The effect is typically manageable.
How serious is the interaction between Brexpiprazole and Diphenoxylate?
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 diphenoxylate dose for the shortest time and monitor for sedation. Counsel patients not to drive if drowsy.
What other medicines interact with Brexpiprazole?
MediHelp also lists interactions of Brexpiprazole with, for example, Alfentanil, Amisulpride, Apalutamide. The full list is on the Brexpiprazole page.
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