Drug interactions
Ofloxacin + Sulphasalazine
Severity: Minor
Ofloxacin and Sulphasalazine: 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
Fluoroquinolones lower the seizure threshold, and salicylates have been proposed to enhance this through effects at GABA receptors. With sulfasalazine, the salicylate load is low, so the risk is largely theoretical.
What this interaction means in plain words
Ofloxacin and Sulphasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.
Ofloxacin belongs to Anti Bacterial; Sulphasalazine belongs to Gastrointestinal Tract.
Why it happens
Quinolone antagonism of GABA-A receptors, theoretically potentiated by displacement from binding sites; not established for sulfasalazine.
What to do
No routine change needed. Use caution with ofloxacin in patients with seizure history and report any CNS symptoms.
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 Sulphasalazine
- Deferiprone + Sulphasalazine Major
- Pexidartinib + Sulphasalazine Major
- Sepiapterin + Sulphasalazine Major
- Acalabrutinib + Sulphasalazine Moderate
- Aceclofenac + Sulphasalazine Moderate
- Acetazolamide + Sulphasalazine Moderate
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 Ofloxacin with Sulphasalazine?
MediHelp rates the interaction as minor. Ofloxacin and Sulphasalazine have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Fluoroquinolones lower the seizure threshold, and salicylates have been proposed to enhance this through effects at GABA receptors. With sulfasalazine, the salicylate load is low, so the risk is largely theoretical.
How serious is the interaction between Ofloxacin and Sulphasalazine?
MediHelp rates it minor, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: No routine change needed. Use caution with ofloxacin in patients with seizure history and report any CNS symptoms.
What other medicines interact with Sulphasalazine?
MediHelp also lists interactions of Sulphasalazine with, for example, Deferiprone, Pexidartinib, Sepiapterin. The full list is on the Sulphasalazine page.
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