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Zithromax (azithromycin)

What is Zithromax?

Azithromycin is an antibiotic used to treat a number of infections caused by bacteria, including the sexually transmitted infection Chlamydia. Azithromycin is a broad-spectrum antibiotic, meaning that it is prescribed as treatment for a wide range of infections. Azithromycin is sold under the brand name Zithromax or generically as Azithromycin.

Can I buy Zithromax (azithromycin) online without a prescription?

The Online Clinic can prescribe Zithromax (azithromycin) online if it is appropriate for you. You do not need to have an existing prescription as we are licensed to issue online prescriptions. If approved, your medication will be sent to you for next day delivery.

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Zithromax is available on prescription for more than one type of consultation.
Sexual Health
Chest Infections
Throat Infections

How does Zithromax (azithromycin) work?

Azithromycin works by blocking the actions of certain proteins that bacteria require to thrive. Without the proteins, the bacteria are prevented from growing, replicating and multiplying. With the spread of the infection curbed, the remaining bacteria are killed off by the body's immune system or simply die.

How is Azithromycin used to treat Chlamydia?

If you are prescribed Azithromycin to treat Chlamydia, then it will be prescribed as a 3 day course. The former practice of prescribing a single dose is no longer recommended. The first line treatment for Chlamydia is currently Doxycycline but Azithromycin can be prescribed as an alternative.

What else is Zithromax used to treat?

This medication can also be used to treat Ureaplasma and Mycoplasma Genitalium. Azithromycin is also used to treat non-specific urethritis (NSU). The doctor will recommend the appropriate treatment regimen following a consultation.

Can I get my partner treated with Zithromax?

If you have tested positive for an STI and you have been prescribed Azithromycin then you need to make sure that your partner also gets treated, otherwise you risk passing the infection back and forth. Once you've both been treated, you should avoid sex for 7 days after treatment.

Azithromycin is very effective against Chlamydia so it is not necessary to get retested after treatment. Other infections sometimes require a retest. If you are getting retested, you should wait at least 3 weeks after you have completed the treatment. Some testing techniques will require you to wait longer for a retest as there is the possibility of a false positive result after treatment.

We recommend The STI Clinic for a fast and accurate sexual health check.

Are there any side effects of Zithromax (azithromycin)?

The most common side effects of this antibiotic are diarrhoea, nausea, vomiting or stomach pains.

Sometimes broad-spectrum antibiotics can cause the bowel to become inflamed. If you are taking this antibiotic and find that you are experiencing severe or persistent diarrhoea, then you need to see your doctor immediately.

Can everyone take Zithromax (azithromycin)?

This antibiotic should not be taken if you are allergic to the ingredients or similar antibiotics, if you have severe liver disease or if you are pregnant, unless your doctor considers it to be absolutely necessary. It is also not recommended for use during breast-feeding. You should not take Zithromax with certain antacids along with some other medications. You should make a full disclosure to our doctor to ensure that Zithromax is an appropriate medication for you.

If you feel that you require antibiotic therapy, please complete a consultation online.

Reviewed by: Dr Joyce Braaksma
GMC registration number: 4621289
Date: 21 March 2022
Next review: 22 March 2024
All UK registered doctors can have their registration checked on
The Medical Register at the GMC website.

Zithromax Reviews By Our Patients

  • Overall Rating
    Based on 5 reviews
  • ★★★★★
    All ok
    D. C. - 27/02/21
  • ★★★★★
    I found the Online Clinic to be reliable and very professional service. I had been directed to the Online Clinic from their sister site, the STI Clinic after having purchased a full STI screen which returned positive results, to undertake a consultation. This required filling out a short online consultation form for their review which I was particularly impressed with the fast turnaround. This was processed within an hour and was able to provide the required medications. After I made payment the prescription was forwarded to their pharmacy a...
    S. L. - 15/01/20
  • ★☆☆☆☆
    Poor, did not work
    S.L. - 16/05/22
  • ★★★★★
    It worked, no side effects. Clear instrucctions on how to use it.
    A. F. - 29/01/20
  • ★★★★☆
    Stomachache. Both medications were taking together on a daily basis
    A. N. - 21/12/20
  • ★★★★★
    Needed this for an STI that I tested positive for. It did the job.
    J. Smythe - 12/04/20

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