Drug interactions
Olodaterol inhaled + Phenylephrine
Severity: Moderate
Olodaterol inhaled and Phenylephrine: 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
Phenylephrine is an alpha-agonist that raises blood pressure, and olodaterol is a long-acting beta2-agonist that can increase heart rate and cause palpitations. Taken together they may produce additive cardiovascular stimulation, which matters most in patients with hypertension or coronary disease.
What this interaction means in plain words
Olodaterol inhaled and Phenylephrine 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
Additive adrenergic pharmacodynamic effects on the cardiovascular system.
What to do
Monitor blood pressure and heart rate when systemic phenylephrine, such as an oral decongestant, is used with olodaterol. Avoid the combination in patients with uncontrolled hypertension or arrhythmia.
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 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 Olodaterol inhaled with Phenylephrine?
MediHelp rates the interaction as moderate. Olodaterol inhaled and Phenylephrine 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. Phenylephrine is an alpha-agonist that raises blood pressure, and olodaterol is a long-acting beta2-agonist that can increase heart rate and cause palpitations. Taken together they may produce additive cardiovascular stimulation, which matters most in patients with hypertension or coronary disease.
How serious is the interaction between Olodaterol inhaled and Phenylephrine?
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 systemic phenylephrine, such as an oral decongestant, is used with olodaterol. Avoid the combination in patients with uncontrolled hypertension or arrhythmia.
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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