Drug interactions
Neomycin po + Piperacillin-tazobactam
Severity: Minor
Neomycin po and Piperacillin-tazobactam: 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
Oral neomycin is poorly absorbed, so systemic synergy with piperacillin is minimal. Any effect is mostly on gut flora and is not clinically important.
What this interaction means in plain words
Neomycin po and Piperacillin-tazobactam 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
Theoretical additive antibacterial effect; systemic exposure to oral neomycin is negligible.
What to do
No action is required; monitor renal function if neomycin absorption is increased, such as with damaged gut mucosa.
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 Piperacillin-tazobactam
Frequently asked questions
Can I take Neomycin po with Piperacillin-tazobactam?
MediHelp rates the interaction as minor. Neomycin po and Piperacillin-tazobactam have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Oral neomycin is poorly absorbed, so systemic synergy with piperacillin is minimal. Any effect is mostly on gut flora and is not clinically important.
How serious is the interaction between Neomycin po and Piperacillin-tazobactam?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No action is required; monitor renal function if neomycin absorption is increased, such as with damaged gut mucosa.
What other medicines interact with Piperacillin-tazobactam?
MediHelp also lists interactions of Piperacillin-tazobactam with, for example, Vancomycin, Amikacin, Antithrombin alfa. The full list is on the Piperacillin-tazobactam page.
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