Drug interactions
Dexamethasone-tobramycin + Piperacillin
Severity: Moderate
Dexamethasone-tobramycin and Piperacillin: 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
Piperacillin and tobramycin are often used together for synergistic antibacterial effect. In patients with renal impairment, piperacillin can lower measured aminoglycoside levels in vitro and in vivo, and both drugs can affect renal function.
What this interaction means in plain words
Dexamethasone-tobramycin and Piperacillin 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.
Dexamethasone-tobramycin belongs to Anti Bacterial; Piperacillin belongs to Anti Bacterial.
Why it happens
Beta-lactam and aminoglycoside show pharmacodynamic synergy, and piperacillin can chemically inactivate aminoglycosides in vitro, particularly in renal failure.
What to do
Do not mix the two in the same infusion line or container; give separately and monitor renal function and aminoglycoside levels when systemic tobramycin is used.
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 Dexamethasone-tobramycin
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 Dexamethasone-tobramycin with Piperacillin?
MediHelp rates the interaction as moderate. Dexamethasone-tobramycin and Piperacillin 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. Piperacillin and tobramycin are often used together for synergistic antibacterial effect. In patients with renal impairment, piperacillin can lower measured aminoglycoside levels in vitro and in vivo, and both drugs can affect renal function.
How serious is the interaction between Dexamethasone-tobramycin and Piperacillin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Do not mix the two in the same infusion line or container; give separately and monitor renal function and aminoglycoside levels when systemic tobramycin is used.
What other medicines interact with Dexamethasone-tobramycin?
MediHelp also lists interactions of Dexamethasone-tobramycin with, for example, Capreomycin, Carboplatin, Ciprofloxacin. The full list is on the Dexamethasone-tobramycin page.
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