Drug interactions
Ciprofloxacin + Mirtazapine
Severity: Moderate
Ciprofloxacin and Mirtazapine: 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
Ciprofloxacin and mirtazapine each have some potential to prolong the QT interval, so combined use may modestly increase the risk of ventricular arrhythmia. The concern is greatest in patients with other risk factors such as cardiac disease, electrolyte imbalance or other QT-prolonging drugs.
What this interaction means in plain words
Ciprofloxacin and Mirtazapine 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.
Ciprofloxacin belongs to Anti Bacterial; Mirtazapine belongs to Central Nervous System.
Why it happens
Additive effects on cardiac repolarization through potassium channel inhibition.
What to do
Check baseline ECG and electrolytes in patients with QT risk factors and correct potassium and magnesium deficits. Consider a non-QT-prolonging antibiotic if the patient has additional 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 Ciprofloxacin
- Agomelatine + Ciprofloxacin Contraindicated
- Ciprofloxacin + Fezolinetant Contraindicated
- Ciprofloxacin + Thioridazine Contraindicated
- Ciprofloxacin + Tizanidine Contraindicated
- Ciprofloxacin + Vandetanib Contraindicated
- Alosetron + Ciprofloxacin Major
Other interactions of Mirtazapine
- Isocarboxazid + Mirtazapine Contraindicated
- Mirtazapine + Phenelzine Contraindicated
- Mirtazapine + Pimozide Contraindicated
- Mirtazapine + Procarbazine Contraindicated
- Mirtazapine + Rasagiline Contraindicated
- Mirtazapine + Selegiline Contraindicated
Frequently asked questions
Can I take Ciprofloxacin with Mirtazapine?
MediHelp rates the interaction as moderate. Ciprofloxacin and Mirtazapine 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. Ciprofloxacin and mirtazapine each have some potential to prolong the QT interval, so combined use may modestly increase the risk of ventricular arrhythmia. The concern is greatest in patients with other risk factors such as cardiac disease, electrolyte imbalance or other QT-prolonging drugs.
How serious is the interaction between Ciprofloxacin and Mirtazapine?
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 in patients with QT risk factors and correct potassium and magnesium deficits. Consider a non-QT-prolonging antibiotic if the patient has additional risk factors.
What other medicines interact with Ciprofloxacin?
MediHelp also lists interactions of Ciprofloxacin with, for example, Agomelatine, Fezolinetant, Thioridazine. The full list is on the Ciprofloxacin page.
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