Drug interactions
Metformin-pioglitazone + Simvastatin
Severity: Minor
Metformin-pioglitazone and Simvastatin: 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
No clinically meaningful interaction is established between pioglitazone and simvastatin. Pioglitazone has been reported to modestly lower simvastatin exposure at most, without a recognized myopathy risk.
What this interaction means in plain words
Metformin-pioglitazone and Simvastatin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Metformin-pioglitazone belongs to Endocrine; Simvastatin belongs to Cardiovascular.
Why it happens
Not established; possible minor effect on CYP3A4 or transporter handling.
What to do
No dose adjustment is needed; monitor lipid response and ask about muscle symptoms.
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 Metformin-pioglitazone
Other interactions of Simvastatin
- Atazanavir + Simvastatin Contraindicated
- Clarithromycin + Simvastatin Contraindicated
- Cobicistat + Simvastatin Contraindicated
- Cyclosporine + Simvastatin Contraindicated
- Cyclosporin + Simvastatin Contraindicated
- Danazol + Simvastatin Contraindicated
Frequently asked questions
Can I take Metformin-pioglitazone with Simvastatin?
MediHelp rates the interaction as minor. Metformin-pioglitazone and Simvastatin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. No clinically meaningful interaction is established between pioglitazone and simvastatin. Pioglitazone has been reported to modestly lower simvastatin exposure at most, without a recognized myopathy risk.
How serious is the interaction between Metformin-pioglitazone and Simvastatin?
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 dose adjustment is needed; monitor lipid response and ask about muscle symptoms.
What other medicines interact with Metformin-pioglitazone?
MediHelp also lists interactions of Metformin-pioglitazone with, for example, Contrast media, Diatrizoate meglumine / diatrizoate, Diatrizoate. The full list is on the Metformin-pioglitazone page.
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