Drug interactions
Isoniazid + Pioglitazone
Severity: Minor
Isoniazid and 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
Isoniazid may impair glycemic control, potentially reducing the effect of pioglitazone, and its weak CYP inhibition is unlikely to be clinically important. Both drugs can also affect the liver, so liver injury is a consideration.
What this interaction means in plain words
Isoniazid and 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.
Isoniazid belongs to Anti Bacterial; Pioglitazone belongs to Endocrine.
Why it happens
Mechanism not firmly established; isoniazid may impair glucose control and weakly inhibit CYP enzymes.
What to do
Monitor blood glucose and liver enzymes during combined therapy and adjust the antidiabetic regimen as needed.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Isoniazid and Pioglitazone, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Isoniazid
Other interactions of Pioglitazone
Frequently asked questions
Can I take Isoniazid with Pioglitazone?
MediHelp rates the interaction as minor. Isoniazid and 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. Isoniazid may impair glycemic control, potentially reducing the effect of pioglitazone, and its weak CYP inhibition is unlikely to be clinically important. Both drugs can also affect the liver, so liver injury is a consideration.
How serious is the interaction between Isoniazid and 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 liver enzymes during combined therapy and adjust the antidiabetic regimen as needed.
What other medicines interact with Isoniazid?
MediHelp also lists interactions of Isoniazid with, for example, Bacillus calmette-guerin substrain tice, Benzhydrocodone / acetaminophen, Carbamazepine. The full list is on the Isoniazid page.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
