Drug interactions
Olopatadine intranasal + Orphenadrin
Severity: Moderate
Olopatadine intranasal 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 can cause drowsiness, and olopatadine nasal spray has some systemic absorption. Combined use may add to sedation and impair psychomotor performance, including driving.
What this interaction means in plain words
Olopatadine intranasal 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 depression and antihistaminic and anticholinergic effects.
What to do
Warn the patient about drowsiness and impaired driving. Consider dosing olopatadine at night or choosing a less sedating alternative if 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 Olopatadine intranasal with Orphenadrin?
MediHelp rates the interaction as moderate. Olopatadine intranasal 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 can cause drowsiness, and olopatadine nasal spray has some systemic absorption. Combined use may add to sedation and impair psychomotor performance, including driving.
How serious is the interaction between Olopatadine intranasal 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: Warn the patient about drowsiness and impaired driving. Consider dosing olopatadine at night or choosing a less sedating alternative if 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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