Drug interactions
Dexamethasone-tobramycin + Propafenone
Severity: Minor
Dexamethasone-tobramycin and Propafenone: 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
Propafenone is metabolized by CYP2D6, CYP3A4 and CYP1A2, so dexamethasone induction might reduce its levels. Clinical consequences are uncertain and likely small, particularly with topical use.
What this interaction means in plain words
Dexamethasone-tobramycin and Propafenone 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; Propafenone belongs to Cardiovascular.
Why it happens
Dexamethasone induces CYP3A4, potentially increasing propafenone metabolism.
What to do
Monitor heart rhythm control if systemic dexamethasone is given for a prolonged period.
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 Propafenone
- Dofetilide + Propafenone Contraindicated
- Dronedarone + Propafenone Contraindicated
- Nilotinib + Propafenone Contraindicated
- Nirmatrelvir / ritonavir + Propafenone Contraindicated
- Nirmatrelvir + Propafenone Contraindicated
- Pimozide + Propafenone Contraindicated
Frequently asked questions
Can I take Dexamethasone-tobramycin with Propafenone?
MediHelp rates the interaction as minor. Dexamethasone-tobramycin and Propafenone have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Propafenone is metabolized by CYP2D6, CYP3A4 and CYP1A2, so dexamethasone induction might reduce its levels. Clinical consequences are uncertain and likely small, particularly with topical use.
How serious is the interaction between Dexamethasone-tobramycin and Propafenone?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Monitor heart rhythm control if systemic dexamethasone is given for a prolonged period.
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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