Drug interactions
Phenylephrine + Xylometazoline
Severity: Minor
Phenylephrine and Xylometazoline: minor 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 are alpha-adrenergic vasoconstrictors, so using them together adds to the vasopressor effect and may raise blood pressure or heart rate, particularly with oral phenylephrine and frequent nasal xylometazoline. Systemic absorption of nasal xylometazoline is usually small, so the effect is generally modest.
What this interaction means in plain words
Phenylephrine and Xylometazoline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Phenylephrine belongs to Respiratory; Xylometazoline belongs to Respiratory.
Why it happens
Additive alpha-adrenergic agonist vasoconstriction.
What to do
Avoid combining multiple decongestants; monitor blood pressure in patients with hypertension or heart disease.
What to ask your pharmacist
- Is there anything I should notice while taking both?
- Do I need to tell my doctor at the next visit?
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Other interactions of Phenylephrine
- Isocarboxazid + Phenylephrine Contraindicated
- Phenelzine + Phenylephrine Contraindicated
- Phenylephrine + Tranylcypromine Contraindicated
- Bromocriptine + Phenylephrine Major
- Cocaine + Phenylephrine Major
- Dihydroergotamine intranasal + Phenylephrine Major
Other interactions of Xylometazoline
- Selegiline + Xylometazoline Contraindicated
- Ergotamine + Xylometazoline Major
- Isocarboxazid + Xylometazoline Major
- Phenelzine + Xylometazoline Major
- Tranylcypromine + Xylometazoline Major
- Amitriptyline + Xylometazoline Moderate
Frequently asked questions
Can I take Phenylephrine with Xylometazoline?
MediHelp rates the interaction as minor. Phenylephrine and Xylometazoline have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Both are alpha-adrenergic vasoconstrictors, so using them together adds to the vasopressor effect and may raise blood pressure or heart rate, particularly with oral phenylephrine and frequent nasal xylometazoline. Systemic absorption of nasal xylometazoline is usually small, so the effect is generally modest.
How serious is the interaction between Phenylephrine and Xylometazoline?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining multiple decongestants; monitor blood pressure in patients with hypertension or heart disease.
What other medicines interact with Phenylephrine?
MediHelp also lists interactions of Phenylephrine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Phenylephrine page.
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