Drug interactions
Dexamethasone-tobramycin + Vinblastine
Severity: Minor
Dexamethasone-tobramycin and Vinblastine: 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
Vinblastine is a CYP3A4 substrate, so dexamethasone induction may reduce its exposure. The effect is uncertain and dexamethasone is commonly given alongside chemotherapy as an antiemetic.
What this interaction means in plain words
Dexamethasone-tobramycin and Vinblastine 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; Vinblastine belongs to Oncology.
Why it happens
CYP3A4 induction by dexamethasone may increase vinblastine clearance.
What to do
No routine dose adjustment is needed; monitor treatment response and toxicity as part of standard chemotherapy care.
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 Dexamethasone-tobramycin
Other interactions of Vinblastine
Frequently asked questions
Can I take Dexamethasone-tobramycin with Vinblastine?
MediHelp rates the interaction as minor. Dexamethasone-tobramycin and Vinblastine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Vinblastine is a CYP3A4 substrate, so dexamethasone induction may reduce its exposure. The effect is uncertain and dexamethasone is commonly given alongside chemotherapy as an antiemetic.
How serious is the interaction between Dexamethasone-tobramycin and Vinblastine?
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 routine dose adjustment is needed; monitor treatment response and toxicity as part of standard chemotherapy care.
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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