Drug interactions
Fleroxacin + Metformin-sitagliptin
Severity: Moderate
Fleroxacin and Metformin-sitagliptin: 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 older patients and those with diabetes on glucose-lowering drugs. Glycemic control may become unpredictable during therapy with fleroxacin.
What this interaction means in plain words
Fleroxacin and Metformin-sitagliptin 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 alter pancreatic beta-cell insulin release, causing dysglycemia that adds to the effect of antidiabetic drugs.
What to do
Monitor blood glucose closely during and shortly after the fluoroquinolone course and teach the patient the symptoms of hypo- and hyperglycemia. Consider an antibiotic from another class if glucose control 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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Fleroxacin and Metformin-sitagliptin, 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 Metformin-sitagliptin
Frequently asked questions
Can I take Fleroxacin with Metformin-sitagliptin?
MediHelp rates the interaction as moderate. Fleroxacin and Metformin-sitagliptin 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 older patients and those with diabetes on glucose-lowering drugs. Glycemic control may become unpredictable during therapy with fleroxacin.
How serious is the interaction between Fleroxacin and Metformin-sitagliptin?
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 and shortly after the fluoroquinolone course and teach the patient the symptoms of hypo- and hyperglycemia. Consider an antibiotic from another class if glucose control becomes unstable.
What other medicines interact with Metformin-sitagliptin?
MediHelp also lists interactions of Metformin-sitagliptin with, for example, Clozapine, Contrast media, Diatrizoate meglumine / diatrizoate. The full list is on the Metformin-sitagliptin 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.
