Drug interactions
Bendroflumethiazide + Metformin-pioglitazone
Severity: Minor
Bendroflumethiazide and Metformin-pioglitazone: 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
Thiazide diuretics can raise blood glucose and so partly oppose the effect of metformin and pioglitazone. The effect is dose-related and generally modest at low doses.
What this interaction means in plain words
Bendroflumethiazide and Metformin-pioglitazone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Thiazides impair insulin secretion and sensitivity, partly via potassium depletion, antagonizing antidiabetic effect.
What to do
Monitor blood glucose and HbA1c after starting the thiazide and adjust antidiabetic doses if control worsens. Keep potassium in the normal range.
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
Frequently asked questions
Can I take Bendroflumethiazide with Metformin-pioglitazone?
MediHelp rates the interaction as minor. Bendroflumethiazide and Metformin-pioglitazone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Thiazide diuretics can raise blood glucose and so partly oppose the effect of metformin and pioglitazone. The effect is dose-related and generally modest at low doses.
How serious is the interaction between Bendroflumethiazide and Metformin-pioglitazone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor blood glucose and HbA1c after starting the thiazide and adjust antidiabetic doses if control worsens. Keep potassium in the normal range.
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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