Drug interactions
Dexamethasone-tobramycin + Insulin detemir
Severity: Moderate
Dexamethasone-tobramycin and Insulin detemir: 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 raises blood glucose and can raise insulin requirements. Topical or ophthalmic use has little effect, but systemic steroids can cause marked hyperglycemia.
What this interaction means in plain words
Dexamethasone-tobramycin and Insulin detemir 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; Insulin detemir belongs to Endocrine.
Why it happens
Glucocorticoids induce insulin resistance and increase hepatic glucose output, opposing insulin action.
What to do
Monitor blood glucose frequently during systemic dexamethasone and titrate insulin; reduce the dose again when the steroid is stopped.
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 Insulin detemir
Frequently asked questions
Can I take Dexamethasone-tobramycin with Insulin detemir?
MediHelp rates the interaction as moderate. Dexamethasone-tobramycin and Insulin detemir 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 raises blood glucose and can raise insulin requirements. Topical or ophthalmic use has little effect, but systemic steroids can cause marked hyperglycemia.
How serious is the interaction between Dexamethasone-tobramycin and Insulin detemir?
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 blood glucose frequently during systemic dexamethasone and titrate insulin; reduce the dose again when the steroid is stopped.
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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