Drug interactions
Amoxapine + Oxymetazoline
Severity: Moderate
Amoxapine and Oxymetazoline: 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
Tricyclic antidepressants block norepinephrine reuptake, which can potentiate the vasoconstrictor action of alpha-agonists. With intranasal oxymetazoline systemic absorption is low, so clinically significant pressor effects are uncommon but possible with heavy use.
What this interaction means in plain words
Amoxapine and Oxymetazoline 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
Pharmacodynamic synergism: inhibited norepinephrine reuptake enhances adrenergic receptor stimulation by the alpha-agonist.
What to do
Use oxymetazoline at labeled doses for the shortest time and monitor blood pressure and heart rate. Avoid combined oxymetazoline-tetracaine dental preparations in patients on tricyclics.
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 Oxymetazoline
- Isocarboxazid + Oxymetazoline Major
- Oxymetazoline + Phenelzine Major
- Oxymetazoline + Tranylcypromine Major
- Amitriptyline + Oxymetazoline Moderate
- Clomipramine + Oxymetazoline Moderate
- Desipramine + Oxymetazoline Moderate
Frequently asked questions
Can I take Amoxapine with Oxymetazoline?
MediHelp rates the interaction as moderate. Amoxapine and Oxymetazoline 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. Tricyclic antidepressants block norepinephrine reuptake, which can potentiate the vasoconstrictor action of alpha-agonists. With intranasal oxymetazoline systemic absorption is low, so clinically significant pressor effects are uncommon but possible with heavy use.
How serious is the interaction between Amoxapine and Oxymetazoline?
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 oxymetazoline at labeled doses for the shortest time and monitor blood pressure and heart rate. Avoid combined oxymetazoline-tetracaine dental preparations in patients on tricyclics.
What other medicines interact with Oxymetazoline?
MediHelp also lists interactions of Oxymetazoline with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Oxymetazoline page.
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