Drug interactions
Dexamethasone-tobramycin + Toremifene
Severity: Moderate
Dexamethasone-tobramycin and Toremifene: 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
Toremifene is metabolized mainly by CYP3A4, and dexamethasone as an inducer can lower its steady-state concentrations, potentially reducing efficacy. This is mainly relevant with sustained systemic corticosteroid use.
What this interaction means in plain words
Dexamethasone-tobramycin and Toremifene 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; Toremifene belongs to Endocrine.
Why it happens
CYP3A4 induction by dexamethasone increases toremifene metabolism.
What to do
Monitor for reduced toremifene effect with prolonged systemic dexamethasone, and consider a toremifene dose adjustment if needed.
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 Toremifene
- Amiodarone + Toremifene Contraindicated
- Dronedarone + Toremifene Contraindicated
- Nilotinib + Toremifene Contraindicated
- Pimozide + Toremifene Contraindicated
- Quinidine + Toremifene Contraindicated
- Ribociclib + Toremifene Contraindicated
Frequently asked questions
Can I take Dexamethasone-tobramycin with Toremifene?
MediHelp rates the interaction as moderate. Dexamethasone-tobramycin and Toremifene 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. Toremifene is metabolized mainly by CYP3A4, and dexamethasone as an inducer can lower its steady-state concentrations, potentially reducing efficacy. This is mainly relevant with sustained systemic corticosteroid use.
How serious is the interaction between Dexamethasone-tobramycin and Toremifene?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor for reduced toremifene effect with prolonged systemic dexamethasone, and consider a toremifene dose adjustment if needed.
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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