Drug interactions
Glimepiride-pioglitazone + Mavacamten
Severity: Minor
Glimepiride-pioglitazone and Mavacamten: 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
Mavacamten is metabolized largely by CYP2C19, with CYP3A4 contributing. Pioglitazone is not a recognized meaningful CYP2C19 inhibitor, so any rise in mavacamten exposure is uncertain and probably small.
What this interaction means in plain words
Glimepiride-pioglitazone and Mavacamten have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Glimepiride-pioglitazone belongs to Endocrine; Mavacamten belongs to Cardiovascular.
Why it happens
Possible weak CYP2C19 inhibition, which is not well established for pioglitazone.
What to do
No routine dose change is needed. Follow standard echocardiographic monitoring of left ventricular ejection fraction during mavacamten therapy.
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 Glimepiride-pioglitazone
Other interactions of Mavacamten
- Apalutamide + Mavacamten Contraindicated
- Carbamazepine + Mavacamten Contraindicated
- Clarithromycin + Mavacamten Contraindicated
- Dexlansoprazole + Mavacamten Contraindicated
- Efavirenz + Mavacamten Contraindicated
- Enzalutamide + Mavacamten Contraindicated
Frequently asked questions
Can I take Glimepiride-pioglitazone with Mavacamten?
MediHelp rates the interaction as minor. Glimepiride-pioglitazone and Mavacamten have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Mavacamten is metabolized largely by CYP2C19, with CYP3A4 contributing. Pioglitazone is not a recognized meaningful CYP2C19 inhibitor, so any rise in mavacamten exposure is uncertain and probably small.
How serious is the interaction between Glimepiride-pioglitazone and Mavacamten?
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 dose change is needed. Follow standard echocardiographic monitoring of left ventricular ejection fraction during mavacamten therapy.
What other medicines interact with Glimepiride-pioglitazone?
MediHelp also lists interactions of Glimepiride-pioglitazone with, for example, Fluconazole, Gemfibrozil, Insulin aspart. The full list is on the Glimepiride-pioglitazone page.
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