Drug interactions
Formoterol-mometasone + Phentermine
Severity: Moderate
Formoterol-mometasone and Phentermine: 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
Phentermine is a sympathomimetic that can raise blood pressure and heart rate, and formoterol can add to these effects. Palpitations, tremor and arrhythmias may occur.
What this interaction means in plain words
Formoterol-mometasone and Phentermine 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.
Formoterol-mometasone belongs to Respiratory; Phentermine belongs to Central Nervous System.
Why it happens
Additive sympathomimetic stimulation.
What to do
Monitor blood pressure and heart rate, and reduce or stop phentermine if cardiovascular symptoms develop.
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 Formoterol-mometasone
Other interactions of Phentermine
- Isocarboxazid + Phentermine Contraindicated
- Linezolid + Phentermine Contraindicated
- Phenelzine + Phentermine Contraindicated
- Phentermine + Procarbazine Contraindicated
- Phentermine + Rasagiline Contraindicated
- Phentermine + Selegiline Contraindicated
Frequently asked questions
Can I take Formoterol-mometasone with Phentermine?
MediHelp rates the interaction as moderate. Formoterol-mometasone and Phentermine 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. Phentermine is a sympathomimetic that can raise blood pressure and heart rate, and formoterol can add to these effects. Palpitations, tremor and arrhythmias may occur.
How serious is the interaction between Formoterol-mometasone and Phentermine?
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, and reduce or stop phentermine if cardiovascular symptoms develop.
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.
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