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AZITHROMYCIN (Zithromax) 1 gram

This medicine is an antibiotic used to treat infections including chlamydia.

This medication is considered safe by many experts for use during pregnancy. Canadian Guidelines on Sexually Transmitted Infections 2010

It is preferable to take this medicine with food to avoid stomach upset.

Do not take antacids such as Maalox within two hours of taking this medication. If you vomit within 1 hour after taking medication, you will
need to be re-treated. Please contact your health care provider.

You may get nausea, stomach pain, vaginal irritation or rash. If these side effects do not go away or get worse, or if you notice other side effects not listed above, check with your doctor.


  • Do not take this medicine if you have an allergy to erythromycin or clarithromycin (Biaxin), or if you have liver disease.
  • If you get moderate to severe diarrhea with this medicine, check with your doctor. Do not treat it with over the counter medicines such as Imodium.
  • Tell your doctor if you are pregnant or breastfeeding.
  • If you need to take any other medicines (over the counter or prescription) while taking this medicine, check with your doctor or pharmacist.
  • Avoid alcohol for 24 hours after taking this medication.

Do not have sex for seven days after taking this medication. Use condoms to stop future infections. Tell your sex partner(s) to be tested and/or treated, whether they have symptoms or not. If you have unprotected sex with your partner and they have not been treated, you can get this infection again.

If you have more questions about chlamydia or other sexually transmitted infections visit our website at and or contact your health care provider.