Drug interactions
Neomycin po + Piperacillin
Severity: Minor
Neomycin po and Piperacillin: 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
Beta-lactams and aminoglycosides are often synergistic against susceptible bacteria. Oral neomycin is poorly absorbed, so systemic effects are minimal and the interaction is of little concern.
What this interaction means in plain words
Neomycin po and Piperacillin 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 synergy between cell-wall-active and aminoglycoside antibiotics; limited by poor oral absorption of neomycin.
What to do
No action is needed in typical use. Monitor renal function if neomycin absorption is increased, such as with damaged bowel mucosa or renal impairment.
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
- Piperacillin + Vancomycin Major
- Acetylsalicylic acid + Piperacillin Moderate
- Amikacin + Piperacillin Moderate
- Antithrombin alfa + Piperacillin Moderate
- Antithrombin iii + Piperacillin Moderate
- Argatroban + Piperacillin Moderate
Frequently asked questions
Can I take Neomycin po with Piperacillin?
MediHelp rates the interaction as minor. Neomycin po and Piperacillin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Beta-lactams and aminoglycosides are often synergistic against susceptible bacteria. Oral neomycin is poorly absorbed, so systemic effects are minimal and the interaction is of little concern.
How serious is the interaction between Neomycin po and Piperacillin?
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 needed in typical use. Monitor renal function if neomycin absorption is increased, such as with damaged bowel mucosa or renal impairment.
What other medicines interact with Piperacillin?
MediHelp also lists interactions of Piperacillin with, for example, Vancomycin, Acetylsalicylic acid, Amikacin. The full list is on the Piperacillin page.
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