Drug interactions
Asenapine transdermal + Orphenadrin
Severity: Moderate
Asenapine transdermal and Orphenadrin: 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
Both drugs cause sedation, and each has some anticholinergic activity, so together they can increase drowsiness, dizziness and cognitive impairment. Falls are a particular concern in older patients.
What this interaction means in plain words
Asenapine transdermal and Orphenadrin 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.
Why it happens
Additive CNS depressant and anticholinergic effects.
What to do
Monitor for sedation and anticholinergic effects, and counsel about driving and fall risk. Reduce the dose of either drug if excessive sedation occurs.
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 Orphenadrin
Frequently asked questions
Can I take Asenapine transdermal with Orphenadrin?
MediHelp rates the interaction as moderate. Asenapine transdermal and Orphenadrin 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. Both drugs cause sedation, and each has some anticholinergic activity, so together they can increase drowsiness, dizziness and cognitive impairment. Falls are a particular concern in older patients.
How serious is the interaction between Asenapine transdermal and Orphenadrin?
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 for sedation and anticholinergic effects, and counsel about driving and fall risk. Reduce the dose of either drug if excessive sedation occurs.
What other medicines interact with Orphenadrin?
MediHelp also lists interactions of Orphenadrin with, for example, Alfentanil, Amobarbital, Benzhydrocodone / acetaminophen. The full list is on the Orphenadrin page.
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