Drug interactions
Fleroxacin + Glimepiride
Severity: Moderate
Fleroxacin and Glimepiride: 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, and the risk is increased in patients taking sulfonylureas. Severe hypoglycemia has been reported, particularly in older adults and those with renal impairment.
What this interaction means in plain words
Fleroxacin and Glimepiride 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.
Why it happens
Fluoroquinolones can stimulate pancreatic insulin release by blocking ATP-sensitive potassium channels, adding to sulfonylurea effects.
What to do
Monitor blood glucose closely during the antibiotic course and educate patients on symptoms of dysglycemia. Switch to a non-quinolone antibiotic if glucose becomes unstable.
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
Frequently asked questions
Can I take Fleroxacin with Glimepiride?
MediHelp rates the interaction as moderate. Fleroxacin and Glimepiride 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, and the risk is increased in patients taking sulfonylureas. Severe hypoglycemia has been reported, particularly in older adults and those with renal impairment.
How serious is the interaction between Fleroxacin and Glimepiride?
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 the antibiotic course and educate patients on symptoms of dysglycemia. Switch to a non-quinolone antibiotic if glucose becomes unstable.
What other medicines interact with Glimepiride?
MediHelp also lists interactions of Glimepiride with, for example, Fluconazole, Insulin degludec-liraglutide, Insulin glargine-lixisenatide. The full list is on the Glimepiride page.
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