Drug interactions
Butalbital + Dexamethasone-tobramycin
Severity: Moderate
Butalbital and Dexamethasone-tobramycin: 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
Butalbital, a barbiturate, may induce metabolism of dexamethasone and reduce its effect. The impact is greatest with systemic dexamethasone and repeated butalbital use.
What this interaction means in plain words
Butalbital and Dexamethasone-tobramycin 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.
Why it happens
Butalbital induces hepatic CYP3A4, increasing dexamethasone clearance.
What to do
Monitor for reduced corticosteroid response and adjust the dexamethasone dose if needed.
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
Frequently asked questions
Can I take Butalbital with Dexamethasone-tobramycin?
MediHelp rates the interaction as moderate. Butalbital and Dexamethasone-tobramycin 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. Butalbital, a barbiturate, may induce metabolism of dexamethasone and reduce its effect. The impact is greatest with systemic dexamethasone and repeated butalbital use.
How serious is the interaction between Butalbital and Dexamethasone-tobramycin?
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 for reduced corticosteroid response and adjust the dexamethasone dose if needed.
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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