Drug interactions
Glimepiride-pioglitazone + Metolazone
Severity: Moderate
Glimepiride-pioglitazone and Metolazone: 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
Metolazone, a thiazide-like diuretic, can raise blood glucose and lower potassium, which may reduce the effectiveness of glimepiride and pioglitazone. Effects are more likely with higher doses or combination with loop diuretics.
What this interaction means in plain words
Glimepiride-pioglitazone and Metolazone 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.
Glimepiride-pioglitazone belongs to Endocrine; Metolazone belongs to Cardiovascular.
Why it happens
Pharmacodynamic antagonism through diuretic-induced hypokalemia and impaired insulin secretion and sensitivity.
What to do
Monitor blood glucose and serum potassium regularly and adjust antidiabetic therapy if hyperglycemia develops.
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 Glimepiride-pioglitazone
Other interactions of Metolazone
Frequently asked questions
Can I take Glimepiride-pioglitazone with Metolazone?
MediHelp rates the interaction as moderate. Glimepiride-pioglitazone and Metolazone 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. Metolazone, a thiazide-like diuretic, can raise blood glucose and lower potassium, which may reduce the effectiveness of glimepiride and pioglitazone. Effects are more likely with higher doses or combination with loop diuretics.
How serious is the interaction between Glimepiride-pioglitazone and Metolazone?
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 glucose and serum potassium regularly and adjust antidiabetic therapy if hyperglycemia develops.
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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