Drug interactions
Asenapine + Difenoxin
Severity: Moderate
Asenapine 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 combined with asenapine may deepen CNS depression. The risk is greater with high doses or other sedatives.
What this interaction means in plain words
Asenapine 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.
Asenapine belongs to Central Nervous System; Difenoxin belongs to Gastrointestinal Tract.
Why it happens
Additive CNS depression from opioid agonism and antipsychotic sedative properties.
What to do
Use the lowest effective difenoxin dose and monitor for sedation and respiratory depression. Advise against driving or alcohol use.
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 Asenapine
- Asenapine + Pimozide Contraindicated
- Asenapine + Thioridazine Contraindicated
- Asenapine + Vandetanib Contraindicated
- Adagrasib + Asenapine Major
- Alfentanil + Asenapine Major
- Alfuzosin + Asenapine Major
Other interactions of Difenoxin
Frequently asked questions
Can I take Asenapine with Difenoxin?
MediHelp rates the interaction as moderate. Asenapine 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 combined with asenapine may deepen CNS depression. The risk is greater with high doses or other sedatives.
How serious is the interaction between Asenapine 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 difenoxin dose and monitor for sedation and respiratory depression. Advise against driving or alcohol use.
What other medicines interact with Asenapine?
MediHelp also lists interactions of Asenapine with, for example, Pimozide, Thioridazine, Vandetanib. The full list is on the Asenapine page.
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