Drug interactions
Formoterol-mometasone + Phenobarbital
Severity: Minor
Formoterol-mometasone and Phenobarbital: 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
Phenobarbital is a CYP3A4 inducer that may lower mometasone systemic exposure. The effect on inhaled therapy is probably small, and formoterol has no sedative interaction.
What this interaction means in plain words
Formoterol-mometasone and Phenobarbital have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
CYP3A4 induction by phenobarbital may increase mometasone clearance.
What to do
No routine adjustment; reassess respiratory control if phenobarbital is started or stopped.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Formoterol-mometasone and Phenobarbital, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Formoterol-mometasone
Frequently asked questions
Can I take Formoterol-mometasone with Phenobarbital?
MediHelp rates the interaction as minor. Formoterol-mometasone and Phenobarbital have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Phenobarbital is a CYP3A4 inducer that may lower mometasone systemic exposure. The effect on inhaled therapy is probably small, and formoterol has no sedative interaction.
How serious is the interaction between Formoterol-mometasone and Phenobarbital?
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 routine adjustment; reassess respiratory control if phenobarbital is started or stopped.
What other medicines interact with Formoterol-mometasone?
MediHelp also lists interactions of Formoterol-mometasone with, for example, Amiodarone, Amisulpride, Amoxapine. The full list is on the Formoterol-mometasone page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
