Drug interactions
Levofloxacin + Sitagliptin
Severity: Minor
Levofloxacin and Sitagliptin: 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
Fluoroquinolones such as levofloxacin can cause both low and high blood glucose in patients on glucose-lowering drugs. Sitagliptin alone rarely causes hypoglycemia, so the risk is mainly unpredictable dysglycemia in diabetic patients, especially older adults or those with renal impairment.
What this interaction means in plain words
Levofloxacin and Sitagliptin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Levofloxacin belongs to Anti Bacterial; Sitagliptin belongs to Endocrine.
Why it happens
Fluoroquinolones alter pancreatic beta-cell insulin release, producing dysglycemia that may add to the glucose-lowering effect of sitagliptin.
What to do
Advise the patient to monitor blood glucose more often during the levofloxacin course and to report symptoms of hypoglycemia or hyperglycemia. Stop levofloxacin and switch antibiotic class if significant glucose abnormalities occur.
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?
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Other interactions of Levofloxacin
- Dronedarone + Levofloxacin Contraindicated
- Ibutilide + Levofloxacin Contraindicated
- Levofloxacin + Thioridazine Contraindicated
- Levofloxacin + Vandetanib Contraindicated
- Levofloxacin + Ziprasidone Contraindicated
- Adagrasib + Levofloxacin Major
Other interactions of Sitagliptin
- Albiglutide + Sitagliptin Moderate
- Amlodipine-benazepril + Sitagliptin Moderate
- Aripiprazole + Sitagliptin Moderate
- Asenapine + Sitagliptin Moderate
- Benazepril + Sitagliptin Moderate
- Captopril-hydrochlorothiazide + Sitagliptin Moderate
Frequently asked questions
Can I take Levofloxacin with Sitagliptin?
MediHelp rates the interaction as minor. Levofloxacin and Sitagliptin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Fluoroquinolones such as levofloxacin can cause both low and high blood glucose in patients on glucose-lowering drugs. Sitagliptin alone rarely causes hypoglycemia, so the risk is mainly unpredictable dysglycemia in diabetic patients, especially older adults or those with renal impairment.
How serious is the interaction between Levofloxacin and Sitagliptin?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Advise the patient to monitor blood glucose more often during the levofloxacin course and to report symptoms of hypoglycemia or hyperglycemia. Stop levofloxacin and switch antibiotic class if significant glucose abnormalities occur.
What other medicines interact with Levofloxacin?
MediHelp also lists interactions of Levofloxacin with, for example, Dronedarone, Ibutilide, Thioridazine. The full list is on the Levofloxacin page.
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