Drug interactions
Glimepiride-pioglitazone + Hydrochlorothiazide
Severity: Moderate
Glimepiride-pioglitazone and Hydrochlorothiazide: 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
Thiazide diuretics can impair glucose tolerance by causing hypokalemia and reducing insulin secretion and sensitivity, which may weaken the effect of glimepiride and pioglitazone. The effect is dose-related and usually modest at low doses.
What this interaction means in plain words
Glimepiride-pioglitazone and Hydrochlorothiazide 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; Hydrochlorothiazide belongs to Cardiovascular.
Why it happens
Pharmacodynamic antagonism via thiazide-induced hypokalemia and reduced insulin release and sensitivity.
What to do
Monitor blood glucose and serum potassium, especially after starting or increasing the thiazide, and adjust antidiabetic therapy if needed.
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 Hydrochlorothiazide
Frequently asked questions
Can I take Glimepiride-pioglitazone with Hydrochlorothiazide?
MediHelp rates the interaction as moderate. Glimepiride-pioglitazone and Hydrochlorothiazide 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. Thiazide diuretics can impair glucose tolerance by causing hypokalemia and reducing insulin secretion and sensitivity, which may weaken the effect of glimepiride and pioglitazone. The effect is dose-related and usually modest at low doses.
How serious is the interaction between Glimepiride-pioglitazone and Hydrochlorothiazide?
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, especially after starting or increasing the thiazide, and adjust antidiabetic therapy if needed.
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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