Drug interactions
Desipramine + Ofloxacin
Severity: Moderate
Desipramine 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 combined use increases the chance of torsades de pointes. Desipramine has also been associated with sudden cardiac events at higher exposure.
What this interaction means in plain words
Desipramine 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.
Desipramine belongs to Central Nervous System; Ofloxacin belongs to Anti Bacterial.
Why it happens
Additive QT prolongation through cardiac potassium channel blockade.
What to do
Check baseline ECG and electrolytes and monitor the QTc during therapy. Use a non-QT-prolonging antibiotic when feasible.
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
Other interactions of Desipramine
- Desipramine + Disopyramide Contraindicated
- Desipramine + Dofetilide Contraindicated
- Desipramine + Ibutilide Contraindicated
- Desipramine + Isocarboxazid Contraindicated
- Desipramine + Methylene blue Contraindicated
- Desipramine + Pentamidine Contraindicated
Frequently asked questions
Can I take Desipramine with Ofloxacin?
MediHelp rates the interaction as moderate. Desipramine 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 combined use increases the chance of torsades de pointes. Desipramine has also been associated with sudden cardiac events at higher exposure.
How serious is the interaction between Desipramine 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 and electrolytes and monitor the QTc during therapy. Use a non-QT-prolonging antibiotic when feasible.
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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