Drug interactions
Dexamethasone-tobramycin + Eplerenone
Severity: Minor
Dexamethasone-tobramycin and Eplerenone: 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
Dexamethasone is a CYP3A4 inducer, and eplerenone is cleared mainly by CYP3A4. Exposure to eplerenone may fall, which could reduce its blood pressure or heart failure benefit. The effect from short topical or ophthalmic dexamethasone use is likely negligible.
What this interaction means in plain words
Dexamethasone-tobramycin and Eplerenone 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; Eplerenone belongs to Cardiovascular.
Why it happens
Induction of CYP3A4 by dexamethasone increases the metabolism of eplerenone.
What to do
No routine change is needed; if systemic dexamethasone is used long term, monitor blood pressure and serum potassium and adjust the eplerenone dose if response is reduced.
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 Eplerenone
- Amiloride + Eplerenone Contraindicated
- Atazanavir + Eplerenone Contraindicated
- Clarithromycin + Eplerenone Contraindicated
- Cobicistat + Eplerenone Contraindicated
- Elvitegravir / cobicistat / emtricitabine / tenofovir df + Eplerenone Contraindicated
- Ensitrelvir + Eplerenone Contraindicated
Frequently asked questions
Can I take Dexamethasone-tobramycin with Eplerenone?
MediHelp rates the interaction as minor. Dexamethasone-tobramycin and Eplerenone 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 is a CYP3A4 inducer, and eplerenone is cleared mainly by CYP3A4. Exposure to eplerenone may fall, which could reduce its blood pressure or heart failure benefit. The effect from short topical or ophthalmic dexamethasone use is likely negligible.
How serious is the interaction between Dexamethasone-tobramycin and Eplerenone?
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 change is needed; if systemic dexamethasone is used long term, monitor blood pressure and serum potassium and adjust the eplerenone dose if response is reduced.
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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