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Drug interactions

Fleroxacin + Glipizide

Severity: Moderate

Fleroxacin and Glipizide: 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

Fluoroquinolones can cause both hypoglycemia and hyperglycemia, particularly in patients on sulfonylureas, with severe hypoglycemia reported especially in older adults and those with renal impairment.

What this interaction means in plain words

Fleroxacin and Glipizide 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.

Evidence level: Moderate

Why it happens

Fluoroquinolones block pancreatic beta-cell potassium channels and stimulate insulin release, adding to sulfonylurea effects.

What to do

Monitor blood glucose closely during fluoroquinolone therapy and counsel the patient on hypoglycemia symptoms. Stop the quinolone and treat if marked dysglycemia occurs.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

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Frequently asked questions

Can I take Fleroxacin with Glipizide?

MediHelp rates the interaction as moderate. Fleroxacin and Glipizide 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. Fluoroquinolones can cause both hypoglycemia and hyperglycemia, particularly in patients on sulfonylureas, with severe hypoglycemia reported especially in older adults and those with renal impairment.

How serious is the interaction between Fleroxacin and Glipizide?

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 closely during fluoroquinolone therapy and counsel the patient on hypoglycemia symptoms. Stop the quinolone and treat if marked dysglycemia occurs.

What other medicines interact with Glipizide?

MediHelp also lists interactions of Glipizide with, for example, Disopyramide, Fluconazole, Insulin degludec-liraglutide. The full list is on the Glipizide page.

Full monographs, dosing and an interaction checker in the MediHelp app

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