Skip to content

Drug interactions

Azithromycin + Dicloxacillin

Severity: Minor

Azithromycin and Dicloxacillin: 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

Azithromycin is bacteriostatic and may theoretically blunt the bactericidal activity of dicloxacillin. Clinical relevance is unproven, and the pair is commonly used together without evident problems.

What this interaction means in plain words

Azithromycin and Dicloxacillin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised.

Azithromycin belongs to Anti Bacterial; Dicloxacillin belongs to Anti Bacterial.

Evidence level: Low

Why it happens

Pharmacodynamic antagonism: reduced bacterial replication lessens the effect of cell-wall-active beta-lactams.

What to do

No routine change is needed; monitor clinical response in serious infections and avoid unneeded combination therapy.

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?

Bring a full list of your medicines, including over-the-counter products, supplements and herbal remedies, to every pharmacy visit.

Pro+ members

Unlock the full page

Create an account and start a Pro+ trial to unlock the full management advice for Azithromycin and Dicloxacillin, the additional notes, the evidence detail and the whole-prescription interaction checker.

  • Full clinical management advice
  • Additional notes
  • Evidence detail
  • Interaction checker for a whole prescription

Try Pro+ free for 7 days on the web. No card needed.

Frequently asked questions

Can I take Azithromycin with Dicloxacillin?

MediHelp rates the interaction as minor. Azithromycin and Dicloxacillin have a small, usually unimportant interaction. Most people can take both; the pharmacist may still mention it so that any unexpected effect is recognised. Azithromycin is bacteriostatic and may theoretically blunt the bactericidal activity of dicloxacillin. Clinical relevance is unproven, and the pair is commonly used together without evident problems.

How serious is the interaction between Azithromycin and Dicloxacillin?

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 is needed; monitor clinical response in serious infections and avoid unneeded combination therapy.

What other medicines interact with Dicloxacillin?

MediHelp also lists interactions of Dicloxacillin with, for example, Phenindione, Atogepant, Axitinib. The full list is on the Dicloxacillin page.

Full monographs, dosing and an interaction checker in the MediHelp app

Open the complete reference, check multi-drug interactions and use dosing tools in the MediHelp app.

Browse A–Z · Drug interactions

Get the app Sign in