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Drug interactions

Epinephrine + Propylhexedrine

Severity: Moderate

Epinephrine and Propylhexedrine: 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

Propylhexedrine is an inhaled sympathomimetic decongestant with vasoconstrictor action. Combined with epinephrine it may add to hypertension, tachycardia and arrhythmia risk, especially when misused or in patients with cardiovascular disease.

What this interaction means in plain words

Epinephrine and Propylhexedrine 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.

Epinephrine belongs to Endocrine; Propylhexedrine belongs to Respiratory.

Evidence level: Low

Why it happens

Additive adrenergic stimulation.

What to do

Monitor blood pressure and heart rate when epinephrine is needed in patients using propylhexedrine. Advise cardiac patients to avoid overuse of the inhaler.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Epinephrine with Propylhexedrine?

MediHelp rates the interaction as moderate. Epinephrine and Propylhexedrine 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. Propylhexedrine is an inhaled sympathomimetic decongestant with vasoconstrictor action. Combined with epinephrine it may add to hypertension, tachycardia and arrhythmia risk, especially when misused or in patients with cardiovascular disease.

How serious is the interaction between Epinephrine and Propylhexedrine?

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 and heart rate when epinephrine is needed in patients using propylhexedrine. Advise cardiac patients to avoid overuse of the inhaler.

What other medicines interact with Epinephrine?

MediHelp also lists interactions of Epinephrine with, for example, Isocarboxazid, Phenelzine, Tranylcypromine. The full list is on the Epinephrine page.

Full monographs, dosing and an interaction checker in the MediHelp app

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