Drug interactions
Amoxapine + Ofloxacin
Severity: Moderate
Amoxapine and Ofloxacin: 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
Both drugs can prolong the QT interval, so together they may increase the risk of torsades de pointes. The risk is greater with electrolyte disturbance, bradycardia or existing heart disease.
What this interaction means in plain words
Amoxapine and Ofloxacin 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
Additive blockade of cardiac potassium channels (hERG) causing QT prolongation.
What to do
Check baseline ECG, potassium and magnesium, and correct abnormalities. Consider an alternative antibiotic if the patient has other QT risk factors.
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 Ofloxacin
- Ofloxacin + Thioridazine Contraindicated
- Adagrasib + Ofloxacin Major
- Amiodarone + Ofloxacin Major
- Amisulpride + Ofloxacin Major
- Anagrelide + Ofloxacin Major
- Arsenic trioxide + Ofloxacin Major
Frequently asked questions
Can I take Amoxapine with Ofloxacin?
MediHelp rates the interaction as moderate. Amoxapine and Ofloxacin 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. Both drugs can prolong the QT interval, so together they may increase the risk of torsades de pointes. The risk is greater with electrolyte disturbance, bradycardia or existing heart disease.
How serious is the interaction between Amoxapine and Ofloxacin?
MediHelp rates it moderate, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Check baseline ECG, potassium and magnesium, and correct abnormalities. Consider an alternative antibiotic if the patient has other QT risk factors.
What other medicines interact with Ofloxacin?
MediHelp also lists interactions of Ofloxacin with, for example, Thioridazine, Adagrasib, Amiodarone. The full list is on the Ofloxacin page.
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