Drug interactions
Dexamethasone-tobramycin + Prednisone
Severity: Minor
Dexamethasone-tobramycin and Prednisone: 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
Using two corticosteroids together adds glucocorticoid effects and adverse effects, and dexamethasone may modestly lower prednisolone exposure through CYP3A4 induction. With topical dexamethasone-tobramycin the interaction is negligible.
What this interaction means in plain words
Dexamethasone-tobramycin and Prednisone 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; Prednisone belongs to Endocrine.
Why it happens
Duplicate glucocorticoid activity, with possible weak CYP3A4 induction by dexamethasone.
What to do
No action is needed for topical use. With systemic dexamethasone, avoid unnecessary duplicate steroid therapy.
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 Prednisone
- Bcg vaccine live + Prednisone Contraindicated
- Measles vaccine + Prednisone Contraindicated
- Mifepristone + Prednisone Contraindicated
- Prednisone + Radium-223 dichloride Contraindicated
- Prednisone + Smallpox vaccine live Contraindicated
- Adenovirus types 4 and 7 live + Prednisone Major
Frequently asked questions
Can I take Dexamethasone-tobramycin with Prednisone?
MediHelp rates the interaction as minor. Dexamethasone-tobramycin and Prednisone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Using two corticosteroids together adds glucocorticoid effects and adverse effects, and dexamethasone may modestly lower prednisolone exposure through CYP3A4 induction. With topical dexamethasone-tobramycin the interaction is negligible.
How serious is the interaction between Dexamethasone-tobramycin and Prednisone?
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 action is needed for topical use. With systemic dexamethasone, avoid unnecessary duplicate steroid therapy.
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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