Drug interactions
Chloramphenicol + Penicillin g aqueous
Severity: Minor
Chloramphenicol and Penicillin g aqueous: 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
Chloramphenicol may antagonize the bactericidal action of penicillin G in vitro. Clinical relevance is uncertain but may matter in meningitis or other severe infections.
What this interaction means in plain words
Chloramphenicol and Penicillin g aqueous have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Pharmacodynamic antagonism between a bacteriostatic agent and a growth-dependent bactericidal beta-lactam.
What to do
Avoid the combination in life-threatening infections when alternatives exist; otherwise monitor clinical response.
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 Chloramphenicol
Frequently asked questions
Can I take Chloramphenicol with Penicillin g aqueous?
MediHelp rates the interaction as minor. Chloramphenicol and Penicillin g aqueous have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Chloramphenicol may antagonize the bactericidal action of penicillin G in vitro. Clinical relevance is uncertain but may matter in meningitis or other severe infections.
How serious is the interaction between Chloramphenicol and Penicillin g aqueous?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Avoid the combination in life-threatening infections when alternatives exist; otherwise monitor clinical response.
What other medicines interact with Chloramphenicol?
MediHelp also lists interactions of Chloramphenicol with, for example, Adagrasib, Avapritinib, Bcg vaccine live. The full list is on the Chloramphenicol page.
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