Drug interactions
Amoxicillin-clavulanic acid + Chloramphenicol
Severity: Moderate
Amoxicillin-clavulanic acid and Chloramphenicol: 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
Chloramphenicol is bacteriostatic and may reduce the bactericidal effect of amoxicillin in vitro. The clinical relevance is uncertain but could matter in severe infections.
What this interaction means in plain words
Amoxicillin-clavulanic acid and Chloramphenicol 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.
Amoxicillin-clavulanic acid belongs to Anti Bacterial; Chloramphenicol belongs to Anti Bacterial.
Why it happens
Pharmacodynamic antagonism, as inhibition of bacterial protein synthesis may reduce cell-wall-dependent killing by the beta-lactam.
What to do
Avoid combining them in serious infections requiring bactericidal therapy and use a single appropriate agent where possible. If both are used, monitor clinical response.
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 Amoxicillin-clavulanic acid
- Amoxicillin-clavulanic acid + Methotrexate Major
- Amoxicillin-clavulanic acid + Pexidartinib Major
- Amoxicillin-clavulanic acid + Pretomanid Major
- Allopurinol + Amoxicillin-clavulanic acid Moderate
- Amoxicillin-clavulanic acid + Bcg vaccine live Moderate
- Amoxicillin-clavulanic acid + Cholera vaccine Moderate
Other interactions of Chloramphenicol
Frequently asked questions
Can I take Amoxicillin-clavulanic acid with Chloramphenicol?
MediHelp rates the interaction as moderate. Amoxicillin-clavulanic acid and Chloramphenicol 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. Chloramphenicol is bacteriostatic and may reduce the bactericidal effect of amoxicillin in vitro. The clinical relevance is uncertain but could matter in severe infections.
How serious is the interaction between Amoxicillin-clavulanic acid and Chloramphenicol?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid combining them in serious infections requiring bactericidal therapy and use a single appropriate agent where possible. If both are used, monitor clinical response.
What other medicines interact with Amoxicillin-clavulanic acid?
MediHelp also lists interactions of Amoxicillin-clavulanic acid with, for example, Methotrexate, Pexidartinib, Pretomanid. The full list is on the Amoxicillin-clavulanic acid page.
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