Drug interactions
Dexamethasone + Toremifene
Severity: Moderate
Dexamethasone 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
Dexamethasone may induce CYP3A4 and lower toremifene concentrations, potentially reducing its antitumor effect. The magnitude of the effect with dexamethasone is less than with strong inducers.
What this interaction means in plain words
Dexamethasone 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 belongs to Endocrine; Toremifene belongs to Endocrine.
Why it happens
CYP3A4 induction by dexamethasone increases toremifene metabolism.
What to do
Monitor clinical response to toremifene during prolonged dexamethasone therapy. Consider a toremifene dose increase only per specialist guidance.
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
- Bcg vaccine live + Dexamethasone Contraindicated
- Dexamethasone + Mifepristone Contraindicated
- Dexamethasone + Rilpivirine Contraindicated
- Dexamethasone + Smallpox vaccine live Contraindicated
- Dexamethasone + Varicella virus vaccine live Contraindicated
- Dexamethasone + Yellow fever vaccine Contraindicated
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 with Toremifene?
MediHelp rates the interaction as moderate. Dexamethasone 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 may induce CYP3A4 and lower toremifene concentrations, potentially reducing its antitumor effect. The magnitude of the effect with dexamethasone is less than with strong inducers.
How serious is the interaction between Dexamethasone 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 clinical response to toremifene during prolonged dexamethasone therapy. Consider a toremifene dose increase only per specialist guidance.
What other medicines interact with Dexamethasone?
MediHelp also lists interactions of Dexamethasone with, for example, Bcg vaccine live, Mifepristone, Rilpivirine. The full list is on the Dexamethasone page.
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