Drug interactions
Danazol + Dexamethasone-tobramycin
Severity: Minor
Danazol and Dexamethasone-tobramycin: 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
Danazol may modestly raise dexamethasone exposure through CYP3A4 inhibition, and both agents can contribute to fluid retention. With topical or ophthalmic dexamethasone-tobramycin, systemic absorption is minimal and the effect is unlikely to matter clinically.
What this interaction means in plain words
Danazol and Dexamethasone-tobramycin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Why it happens
Danazol weakly inhibits CYP3A4, reducing dexamethasone metabolism, with additive sodium and fluid retention.
What to do
No routine action is needed with topical use; with systemic dexamethasone, monitor for edema, blood pressure and signs of corticosteroid excess.
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
Frequently asked questions
Can I take Danazol with Dexamethasone-tobramycin?
MediHelp rates the interaction as minor. Danazol and Dexamethasone-tobramycin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Danazol may modestly raise dexamethasone exposure through CYP3A4 inhibition, and both agents can contribute to fluid retention. With topical or ophthalmic dexamethasone-tobramycin, systemic absorption is minimal and the effect is unlikely to matter clinically.
How serious is the interaction between Danazol and Dexamethasone-tobramycin?
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 action is needed with topical use; with systemic dexamethasone, monitor for edema, blood pressure and signs of corticosteroid excess.
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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