Drug interactions
Oxymetazoline intranasal + Tranylcypromine
Severity: Moderate
Oxymetazoline intranasal and Tranylcypromine: 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
Oxymetazoline is an alpha-adrenergic agonist, and in patients on a nonselective MAOI such as tranylcypromine, sympathomimetic effects can be exaggerated. This may cause a hypertensive reaction with headache and, rarely, hypertensive crisis. Systemic absorption from nasal use is limited, which makes serious reactions less likely but still possible.
What this interaction means in plain words
Oxymetazoline intranasal and Tranylcypromine 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
MAO inhibition increases neuronal norepinephrine stores, so adrenergic agonists produce an enhanced pressor response.
What to do
Avoid intranasal decongestants where possible and use saline or other non-sympathomimetic measures instead. If used, give at the lowest dose for a short time and monitor blood pressure.
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 Tranylcypromine
- 5-HTP + Tranylcypromine Contraindicated
- Amitriptyline + Tranylcypromine Contraindicated
- Amoxapine + Tranylcypromine Contraindicated
- Atomoxetine + Tranylcypromine Contraindicated
- Benzphetamine + Tranylcypromine Contraindicated
- Brimonidine + Tranylcypromine Contraindicated
Frequently asked questions
Can I take Oxymetazoline intranasal with Tranylcypromine?
MediHelp rates the interaction as moderate. Oxymetazoline intranasal and Tranylcypromine 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. Oxymetazoline is an alpha-adrenergic agonist, and in patients on a nonselective MAOI such as tranylcypromine, sympathomimetic effects can be exaggerated. This may cause a hypertensive reaction with headache and, rarely, hypertensive crisis. Systemic absorption from nasal use is limited, which makes serious reactions less likely but still possible.
How serious is the interaction between Oxymetazoline intranasal and Tranylcypromine?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid intranasal decongestants where possible and use saline or other non-sympathomimetic measures instead. If used, give at the lowest dose for a short time and monitor blood pressure.
What other medicines interact with Tranylcypromine?
MediHelp also lists interactions of Tranylcypromine with, for example, 5-HTP, Amitriptyline, Amoxapine. The full list is on the Tranylcypromine page.
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