Drug interactions
Iloperidone + Montelukast
Severity: Minor
Iloperidone and Montelukast: 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
Iloperidone is a weak time-dependent CYP3A4 inhibitor, while montelukast is cleared mainly by CYP2C8. A clinically relevant change in montelukast exposure is unlikely.
What this interaction means in plain words
Iloperidone and Montelukast have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Iloperidone belongs to Central Nervous System; Montelukast belongs to Respiratory.
Why it happens
Weak CYP3A4 inhibition by iloperidone affects only a minor montelukast pathway.
What to do
No action is required.
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?
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Other interactions of Montelukast
- Apalutamide + Montelukast Moderate
- Carbamazepine + Montelukast Moderate
- Deferasirox + Montelukast Moderate
- Enzalutamide + Montelukast Moderate
- Fosphenytoin + Montelukast Moderate
- Gemfibrozil + Montelukast Moderate
Other interactions of Iloperidone
- Iloperidone + Thioridazine Contraindicated
- Alfuzosin + Iloperidone Major
- Amiodarone + Iloperidone Major
- Amisulpride + Iloperidone Major
- Amitriptyline + Iloperidone Major
- Anagrelide + Iloperidone Major
Frequently asked questions
Can I take Iloperidone with Montelukast?
MediHelp rates the interaction as minor. Iloperidone and Montelukast have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Iloperidone is a weak time-dependent CYP3A4 inhibitor, while montelukast is cleared mainly by CYP2C8. A clinically relevant change in montelukast exposure is unlikely.
How serious is the interaction between Iloperidone and Montelukast?
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 action is required.
What other medicines interact with Montelukast?
MediHelp also lists interactions of Montelukast with, for example, Apalutamide, Carbamazepine, Deferasirox. The full list is on the Montelukast page.
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