Drug interactions
Balstilimab + Cefadroxil
Severity: Moderate
Balstilimab and Cefadroxil: 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
Antibiotics may alter gut microbiota, and observational data in cancer patients suggest antibiotic exposure around the start of checkpoint inhibitor therapy is associated with poorer outcomes. A causal effect of cefadroxil has not been established.
What this interaction means in plain words
Balstilimab and Cefadroxil 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
Antibiotic-induced gut dysbiosis may impair immune responses that support checkpoint inhibitor efficacy; the mechanism is not firmly established.
What to do
Use antibiotics only when clearly indicated and for the shortest effective duration. Monitor tumor response as usual.
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 Cefadroxil
- Amikacin + Cefadroxil Moderate
- Avelumab + Cefadroxil Moderate
- Bcg vaccine live + Cefadroxil Moderate
- Cefadroxil + Cholera vaccine Moderate
- Cefadroxil + Gentamicin Moderate
- Cefadroxil + Kanamycin Moderate
Frequently asked questions
Can I take Balstilimab with Cefadroxil?
MediHelp rates the interaction as moderate. Balstilimab and Cefadroxil 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. Antibiotics may alter gut microbiota, and observational data in cancer patients suggest antibiotic exposure around the start of checkpoint inhibitor therapy is associated with poorer outcomes. A causal effect of cefadroxil has not been established.
How serious is the interaction between Balstilimab and Cefadroxil?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Use antibiotics only when clearly indicated and for the shortest effective duration. Monitor tumor response as usual.
What other medicines interact with Cefadroxil?
MediHelp also lists interactions of Cefadroxil with, for example, Amikacin, Avelumab, Bcg vaccine live. The full list is on the Cefadroxil page.
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