Drug interactions
Lithium + Ofloxacin
Severity: Moderate
Lithium 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
Lithium has been associated with QT changes, and ofloxacin may add a modest QT effect. The risk is mainly relevant with lithium toxicity, electrolyte disturbance or heart disease.
What this interaction means in plain words
Lithium 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.
Lithium belongs to Central Nervous System; Ofloxacin belongs to Anti Bacterial.
Why it happens
Additive effects on cardiac repolarization.
What to do
Check ECG and electrolytes in patients with cardiac risk factors and keep lithium levels in the therapeutic range. Consider an alternative antibiotic in high-risk patients.
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 Lithium
- Lithium + Thioridazine Contraindicated
- Lithium + Vandetanib Contraindicated
- Aceclofenac + Lithium Major
- Acemetacin + Lithium Major
- Amisulpride + Lithium Major
- Amlodipine-benazepril + Lithium Major
Frequently asked questions
Can I take Lithium with Ofloxacin?
MediHelp rates the interaction as moderate. Lithium 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. Lithium has been associated with QT changes, and ofloxacin may add a modest QT effect. The risk is mainly relevant with lithium toxicity, electrolyte disturbance or heart disease.
How serious is the interaction between Lithium 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 ECG and electrolytes in patients with cardiac risk factors and keep lithium levels in the therapeutic range. Consider an alternative antibiotic in high-risk patients.
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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