Drug interactions
Carbamazepine + Glimepiride-pioglitazone
Severity: Moderate
Carbamazepine and Glimepiride-pioglitazone: 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
Carbamazepine induces CYP enzymes including CYP2C8, CYP3A4 and CYP2C9, which can reduce pioglitazone and glimepiride levels and weaken glycemic control.
What this interaction means in plain words
Carbamazepine and Glimepiride-pioglitazone 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.
Carbamazepine belongs to Central Nervous System; Glimepiride-pioglitazone belongs to Endocrine.
Why it happens
Enzyme induction by carbamazepine increases metabolism of pioglitazone (CYP2C8/3A4) and glimepiride (CYP2C9).
What to do
Monitor blood glucose and HbA1c and increase antidiabetic doses if needed; reassess if carbamazepine is stopped.
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 Carbamazepine
- Artemether / lumefantrine + Carbamazepine Contraindicated
- Cabotegravir + Carbamazepine Contraindicated
- Carbamazepine + Delamanid Contraindicated
- Carbamazepine + Dienogest / estradiol valerate Contraindicated
- Carbamazepine + Doravirine Contraindicated
- Carbamazepine + Elbasvir / grazoprevir Contraindicated
Frequently asked questions
Can I take Carbamazepine with Glimepiride-pioglitazone?
MediHelp rates the interaction as moderate. Carbamazepine and Glimepiride-pioglitazone 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. Carbamazepine induces CYP enzymes including CYP2C8, CYP3A4 and CYP2C9, which can reduce pioglitazone and glimepiride levels and weaken glycemic control.
How serious is the interaction between Carbamazepine and Glimepiride-pioglitazone?
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 HbA1c and increase antidiabetic doses if needed; reassess if carbamazepine is stopped.
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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