Clindamycin and Lixisenatide: Interaction Details
AI-assisted, pharmacist-reviewed · AI content regenerated Jul 11, 2026 · Source data updated Jul 1, 2026 · Sources: FDA labeling, DDInter 2.0, cited literature
Lixisenatide
No brand names on recordClindamycin
How we grade severity & evidence
Severity levels
- Contraindicated: These should generally not be used together.
- Major: Potentially serious — often needs a change or close monitoring.
- Moderate: Can be significant — usually manageable with monitoring.
- Minor: Usually limited clinical impact.
Evidence grades
- Established: Well documented — supported by controlled studies or strong clinical data.
- Probable: Good supporting evidence, though not definitively proven.
- Suspected: Some evidence suggests this interaction, but it is not well established.
- Possible: Limited or conflicting evidence; the interaction may occur.
- Theoretical: Predicted from the drugs' pharmacology; not yet confirmed in people.
Ratings come from the documented interaction literature and are reviewed by a pharmacist. They describe the documented risk of the combination, not what will necessarily happen to you — your dose, timing, and health picture all matter.
What's going on: Lixisenatide is a diabetes medicine that slows down how fast your stomach empties. Clindamycin is an antibiotic you may take by mouth to fight an infection. Because lixisenatide slows your stomach, your body may absorb the clindamycin a little more slowly, which could delay how quickly the antibiotic reaches the level it needs to work.
The good news is this is easy to manage. Taking your clindamycin at least an hour before your lixisenatide injection usually solves it. Keep taking both as prescribed, and just check the timing with your pharmacist or doctor.
Mechanism: Lixisenatide, a GLP-1 receptor agonist, delays gastric emptying, which can slow the absorption of orally administered clindamycin. This is a PK interaction affecting rate (and potentially time to threshold concentration) of the antibiotic; neither agent is a prodrug and the direction is delayed, not reduced, systemic exposure in principle.
- Effect: delayed therapeutic effect of oral clindamycin
- Onset: rapid
- Evidence: theoretical
- Management: administer oral clindamycin at least 1 hour before the lixisenatide injection to ensure threshold concentrations for efficacy. Monitor clinical response to antibiotic therapy.
What happens
Delayed therapeutic effect
Interaction Deep Dive
Taking lixisenatide together with oral antibiotics can reduce the rate at which the antibiotic is absorbed because gastric emptying is delayed. When these medications must be used together, give the oral antibiotic no less than one hour before injecting lixisenatide so that the antibiotic reaches the threshold concentrations required for its effectiveness1.
Why it happens (mechanism)
Delayed gastric emptying
How to manage this interaction
How your care team handles this: The main tool here is timing, not stopping either medicine.
- Keep taking both your clindamycin and lixisenatide as prescribed.
- The usual approach is to take your oral clindamycin at least one hour before your lixisenatide injection, so the antibiotic can reach the levels it needs to work.
- Your care team may watch to make sure the infection is responding as expected.
Ask your pharmacist or prescriber to confirm the best schedule for your specific doses and to raise any concerns if the infection does not seem to be improving.
Management is individual — confirm any change with your pharmacist or prescriber.
Common questions
Can I take Clindamycin and Lixisenatide together?
Take your oral clindamycin at least one hour before your lixisenatide injection so the antibiotic can work properly, and confirm the timing with your pharmacist. Always confirm with your pharmacist or prescriber before making any change.
How serious is the Clindamycin and Lixisenatide interaction?
It is rated moderate. Can be significant — usually manageable with monitoring.
How quickly could this interaction happen?
The documented onset is "rapid". Effects can appear quickly, often within about 24 hours of combining the drugs.
How is the Clindamycin and Lixisenatide interaction managed?
How your care team handles this: The main tool here is timing, not stopping either medicine. Keep taking both your clindamycin and lixisenatide as prescribed. The usual approach is to take your oral clindamycin at least one hour before your lixisenatide injection, so the antibiotic can reach the levels it needs to work. Your care team may watch to make sure the infection is responding as expected.… Management is individual — always follow your own care team's guidance.
How strong is the evidence for this interaction?
The evidence is graded "theoretical". Predicted from the drugs' pharmacology; not yet confirmed in people.
From our Q&A
Real reader questions about these medications, each personally answered by our pharmacist:
Questions for your pharmacist
- Does my dose of Clindamycin or Lixisenatide need adjusting while I take them together?
- What symptoms should prompt me to call you or my prescriber right away?
- Does the timing of my doses matter for this combination?
- Is there anything you'd monitor while I'm on both?
References (1)
- Product Information: ADLYXIN(TM) subcutaneous injection, lixisenatide subcutaneous injection. sanofi-aventis US LLC (per manufacturer), Bridgewater, NJ, 2016. DailyMed
Keep reading about Lixisenatide
Keep reading about Clindamycin
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Prescription drugs aren't the whole picture — herbal and dietary supplements can interact with them too. From the evidence-graded Natural Medicines database:
major · moderate · minor — check everything you take with our drug–supplement interaction checker.
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