Drug interactions
Azelastine + Phenylephrine
Severity: Minor
Azelastine and Phenylephrine: 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
Phenylephrine is a sympathomimetic decongestant with mild stimulant properties that could partly offset azelastine drowsiness. No meaningful harmful interaction is established, and combination products are common.
What this interaction means in plain words
Azelastine and Phenylephrine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Azelastine belongs to Respiratory; Phenylephrine belongs to Respiratory.
Why it happens
Opposing CNS effects: sedation from H1 blockade versus sympathomimetic stimulation; no established pharmacokinetic interaction.
What to do
No specific action needed beyond awareness; do not rely on phenylephrine to prevent sedation. Counsel patients on caution when driving until response is known.
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 Azelastine
Other interactions of Phenylephrine
- Isocarboxazid + Phenylephrine Contraindicated
- Phenelzine + Phenylephrine Contraindicated
- Phenylephrine + Tranylcypromine Contraindicated
- Bromocriptine + Phenylephrine Major
- Cocaine + Phenylephrine Major
- Dihydroergotamine intranasal + Phenylephrine Major
Frequently asked questions
Can I take Azelastine with Phenylephrine?
MediHelp rates the interaction as minor. Azelastine and Phenylephrine 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 is a sympathomimetic decongestant with mild stimulant properties that could partly offset azelastine drowsiness. No meaningful harmful interaction is established, and combination products are common.
How serious is the interaction between Azelastine and Phenylephrine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No specific action needed beyond awareness; do not rely on phenylephrine to prevent sedation. Counsel patients on caution when driving until response is known.
What other medicines interact with Azelastine?
MediHelp also lists interactions of Azelastine with, for example, Calcium / magnesium / potassium / sodium oxybates, Methadone, Sodium oxybate. The full list is on the Azelastine page.
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