Drug interactions
Dexamethasone-tobramycin + Trastuzumab
Severity: Minor
Dexamethasone-tobramycin and Trastuzumab: 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
Corticosteroids are immunosuppressive and trastuzumab combined with chemotherapy increases neutropenia risk, so infection risk may be additive. Dexamethasone is routinely used as premedication with chemotherapy and is usually acceptable.
What this interaction means in plain words
Dexamethasone-tobramycin and Trastuzumab have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Dexamethasone-tobramycin belongs to Anti Bacterial; Trastuzumab belongs to Oncology.
Why it happens
Additive immunosuppression and infection risk; no pharmacokinetic mechanism established.
What to do
Monitor for infection and neutropenia during combined therapy with chemotherapy. Use the lowest effective corticosteroid dose.
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?
Pro+ members
Unlock the full page
Create an account and start a Pro+ trial to unlock the full management advice for Dexamethasone-tobramycin and Trastuzumab, the additional notes, the evidence detail and the whole-prescription interaction checker.
- Full clinical management advice
- Additional notes
- Evidence detail
- Interaction checker for a whole prescription
Try Pro+ free for 7 days on the web. No card needed.
Other interactions of Dexamethasone-tobramycin
Other interactions of Trastuzumab
Frequently asked questions
Can I take Dexamethasone-tobramycin with Trastuzumab?
MediHelp rates the interaction as minor. Dexamethasone-tobramycin and Trastuzumab have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Corticosteroids are immunosuppressive and trastuzumab combined with chemotherapy increases neutropenia risk, so infection risk may be additive. Dexamethasone is routinely used as premedication with chemotherapy and is usually acceptable.
How serious is the interaction between Dexamethasone-tobramycin and Trastuzumab?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for infection and neutropenia during combined therapy with chemotherapy. Use the lowest effective corticosteroid dose.
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.
Full monographs, dosing and an interaction checker in the MediHelp app
Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.
