Drug interactions
Armodafinil + Phenylephrine po
Severity: Moderate
Armodafinil and Phenylephrine po: 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
Oral phenylephrine is a decongestant with pressor activity, and armodafinil is a wakefulness-promoting stimulant that can raise blood pressure. Combined use may increase blood pressure, heart rate and feelings of jitteriness.
What this interaction means in plain words
Armodafinil and Phenylephrine po 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 pressor and stimulant effects from alpha-adrenergic agonism and central stimulation.
What to do
Monitor blood pressure and heart rate in patients taking decongestants with armodafinil. Avoid the combination in uncontrolled hypertension or significant cardiac disease.
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 Armodafinil
Frequently asked questions
Can I take Armodafinil with Phenylephrine po?
MediHelp rates the interaction as moderate. Armodafinil and Phenylephrine po 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. Oral phenylephrine is a decongestant with pressor activity, and armodafinil is a wakefulness-promoting stimulant that can raise blood pressure. Combined use may increase blood pressure, heart rate and feelings of jitteriness.
How serious is the interaction between Armodafinil and Phenylephrine po?
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 in patients taking decongestants with armodafinil. Avoid the combination in uncontrolled hypertension or significant cardiac disease.
What other medicines interact with Armodafinil?
MediHelp also lists interactions of Armodafinil with, for example, Avapritinib, Elacestrant, Elbasvir / grazoprevir. The full list is on the Armodafinil page.
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