Drug interactions
Naphazoline + Safinamide
Severity: Moderate
Naphazoline and Safinamide: 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
Safinamide is a MAO-B inhibitor, and sympathomimetic decongestants such as naphazoline may raise blood pressure and heart rate. Safinamide labeling advises monitoring for hypertension with sympathomimetics. Systemic exposure from ophthalmic or nasal naphazoline is low, which limits the risk.
What this interaction means in plain words
Naphazoline and Safinamide 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.
Naphazoline belongs to Miscellaneous; Safinamide belongs to Central Nervous System.
Why it happens
Additive pressor effects from alpha-adrenergic agonism together with MAO inhibition.
What to do
Monitor blood pressure if naphazoline is used regularly, and avoid frequent or high-dose use. Seek an alternative for patients with uncontrolled hypertension.
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 Naphazoline
- Iobenguane i + Naphazoline Moderate
- Naphazoline + Solriamfetol Moderate
- Naphazoline + Zavegepant intranasal Moderate
- Naphazoline + Nicotine Minor
- Naphazoline + Nicotine intranasal Minor
Other interactions of Safinamide
- Amitriptyline + Safinamide Contraindicated
- Amoxapine + Safinamide Contraindicated
- Amphetamine polistirex + Safinamide Contraindicated
- Clomipramine + Safinamide Contraindicated
- Cyclobenzaprine + Safinamide Contraindicated
- Desipramine + Safinamide Contraindicated
Frequently asked questions
Can I take Naphazoline with Safinamide?
MediHelp rates the interaction as moderate. Naphazoline and Safinamide 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. Safinamide is a MAO-B inhibitor, and sympathomimetic decongestants such as naphazoline may raise blood pressure and heart rate. Safinamide labeling advises monitoring for hypertension with sympathomimetics. Systemic exposure from ophthalmic or nasal naphazoline is low, which limits the risk.
How serious is the interaction between Naphazoline and Safinamide?
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 blood pressure if naphazoline is used regularly, and avoid frequent or high-dose use. Seek an alternative for patients with uncontrolled hypertension.
What other medicines interact with Naphazoline?
MediHelp also lists interactions of Naphazoline with, for example, Iobenguane i, Solriamfetol, Zavegepant intranasal. The full list is on the Naphazoline page.
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