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Azithromycin 500mg Tablets

*The brand supplied may vary. Please contact us if you require a specific brand.

Azithromycin 500mg Tablets (4 tablets)

Order before 4pm for delivery from Tue. 24 Sep.

Description for Azithromycin 500mg Tablets

Azithromycin is an antibiotic to treat chlamydia and is used where Doxycycline is unsuitable to take. It is taken as a three-day course and clears up most chlamydia infections within 7 days. Chlamydia antibiotic treatment can be bought from our Online Pharmacy following a simple medical questionnaire and can be delivered quickly and discreetly to a location of your choice. 

Product Information

  • Age: 18 Years +

    Maximum per order: 1

  • Pregnancy: Not suitable

    Breastfeeding: Not suitable

Azithromycin is used to treat sexual infections 

Azithromycin is a type of antibiotic known as a macrolide-type antibiotic. These antibiotics work by stopping protein production in bacteria, preventing them from growing and replicating. This means that a bacterial infection can no longer spread and the immune system will eventually kill it off.

As a broad-spectrum antibiotic, azithromycin is effective against a large variety of different bacteria. There are many uses for azithromycin: it is highly effective in treating infections in the skin, ears, soft tissue, airways, and it can also be used to treat the sexually transmitted infection, chlamydia.

Sometimes, a doctor may take a tissue sample to ensure that a specific bacterial infection is vulnerable to azithromycin before prescribing it.

It is easy to order azithromycin online; to place an order, you just need to complete a brief medical questionnaire. One of our doctors will then review your order and approve it in order to prescribe azithromycin for treatment of your sexual infection, as long as Doxycycline (the first choice antibiotic for chlamydia) would be unsuitable.

A chlamydia test kit can be ordered here.


How azithromycin treats chlamydia

Chlamydia is easily treated with a course of antibiotics. The two most common types of antibiotics used to treat chlamydia are azithromycin and doxycycline. Both combat the infection in the same way, by preventing the bacteria from reproducing.

A course of antibiotics successfully treats chlamydia 95% of the time if the prescriptions instructions are correctly followed. Always read the information guidelines before taking this medication.

The dosage of azithromycin to treat chlamydia has been recently updated in the UK and is two 500mg tablets to be taken at the same time for one day, then one tablet once daily for two days. Doxycycline, the first-line treatment for chlamydia, is normally prescribed in a longer course, of one capsule twice daily for a week.

A different antibiotic may be prescribed if you are pregnant or breastfeeding, or if you have had chlamydia for a long time. Always complete a course of antibiotics, even if the symptoms appear to have gone.


When will a doctor prescribe azithromycin for you? 

If you believe you have chlamydia, get tested right away. The test can be taken at any time, but if you have engaged in unprotected sex within two weeks before taking the test you may want to take a further test at a later time. The test is normally a simple urine or swab test.

For most people (9 out of 10), the chlamydia test is accurate. Cases of false positives or negatives are very rare. Most sexual health clinics or GPs offer to test for free, but you can also buy a test online to be taken at home. The National Chlamydia Screening Programme (NCSP) offers free testing at pharmacies for those under twenty-five.

For men, the test is almost always a simple urine sample. For women, a urine test is possible but normally a swab test is used.

A doctor may suggest a swab test in the rectum or throat if you have engaged in unprotected oral or anal sex. An eyelid swab may be called for if there are symptoms present in the eyes.

If there is a very high risk of chlamydia, for example, if you have been engaging in unprotected sex with a partner who has chlamydia, a doctor may prescribe a course of treatment before the test results return. If your test results confirm that you have chlamydia, your doctor will prescribe doxycycline or another medication such as azithromycin (if doxycycline is unsuitable) to treat your sexual infection. 

*Prescription medicines are supplied subject to a medical consultation at the discretion of a doctor.
  • Take TWO Azithromycin 500mg tablets as a single dose for one day, then 500mg orally once daily for two days.
  • You should take Azithromycin as soon as possible after a positive chlamydia test by you or one of your sexual partners.
  • Azithromycin tablets should be swallowed whole with plenty of water.
  • Do not have sex for SEVEN days after treatment.
  • Take a chlamydia test again after 14 days to ensure successful treatment.

Like all medicines, Azithromycin can cause side effects, although not everybody gets them.

Side effects can include:

  • nausea & diarrhoea
  • abdominal pain
  • flatulence

If you have any of the following symptoms, you may have a severe allergic reaction to Azithromycin, stop taking it and tell your doctor immediately or go to the casualty department at your nearest hospital. 

  • Sudden difficulty in breathing, speaking and swallowing.
  • Swelling of the lips, tongue, face and neck.
  • Extreme dizziness or collapse.
  • Severe or itchy skin rash, especially if this shows blistering and there is soreness of the eyes, mouth or genital organs.

The following are serious side effects that occur in a very small minority of patients. If you experience any of the following side effects you should see your GP as soon as possible.

  • Diarrhoea that is serious, lasts a long time or has blood in it, with stomach pain or fever. This can be a sign of a serious bowel inflammation. This is something that can rarely happen after taking antibiotics
  • Yellowing of the skin or whites of the eyes caused by liver problems
  • Inflammation of the pancreas, which causes severe pain in the abdomen and back
  • Increased or reduced urine output, or traces of blood in your urine
  • Skin rash caused by sensitivity to sunlight
  • Unusual bruising or bleeding
  • Irregular heartbeat.

Please read the patient information leaflet that comes with your Azithromycin tablets before you take them for full information on side effects.

Each Azithromycin tablet contains the active ingredient azithromycin dihydrate 500mg.

Each tablet also contains: Core: croscarmellose sodium (E468), magnesium stearate (E572), microcrystalline cellulose (E460), silicium dioxide, (E551), poloxamer, povidone (E1201), talc, and waterfree lactose. Coating: hypromellose (E464), hydroxypropylcellulose, macrogol and titanium dioxide (E171).

It is not suitable for our Online Doctor to prescribe Azithromycin to treat chlamydia for you if:
you have severe liver or kidney problems.
you have severe heart problems or problems with your heart beat such as long QT syndrome (shown on an electro-cardiogram or ECG machine).
your blood levels of potassium or magnesium are too low.
you develop signs of another infection.
you are taking any ergot derivatives such as ergotamine (to treat migraine).
you have a certain type of muscle weakness called myasthenia gravis.
you have nervous (neurological) or mental (psychiatric) problems.
If any of the above conditions apply you should see your GP for advice and treatment of chlamydia.
If you notice blood in your stool, or suffer with fever, chills, or severe headache your infection may be more serious and you should see a doctor as soon as possible. If symptoms include a thick or bloody discharge from the penis with soreness or inflammation in men or women with heavy offensive vaginal discharge or irregular bleeding and low abdominal pain, you should see your GP as this could indicate a more serious infection.

Delivery & Shipping Information


UK Orders

We offer FREE standard tracked delivery on orders over £40.

The following delivery options are available:

  • Standard Tracked Delivery - 2/3 day delivery - £2.95
  • Express Tracked Delivery - 1/2 day delivery - £4.45
  • DPD Next Day - 1 working day - £6.95
  • Special Delivery (Guaranteed before 1pm) - £8.95
  • Saturday Guaranteed before 1pm - £10.45

Important Delivery Information

All our orders are sent out using Royal Mail (unless stated). We always aim to dispatch all Royal Mail orders received before 4pm the same working day. Any orders received after 4pm or over the weekend will be dispatched the next working day. We aim to dispatch all DPD orders placed before 3pm on the same working day. Orders will not be dispatched on weekends or bank holidays.

All orders are subject to approval by our team of doctors and pharmacists. Your delivery date in the checkout is subject to your consultation being approved by our healthcare team.

All orders can be fully tracked from your dispatch email and in your account.

We ensure all parcels are in plain packaging for discreet delivery of your medicines and pharmacy goods.

Deliveries containing pharmacy-only or prescription medicines may require a signature on receipt. 

Delivery is free for all NHS prescriptions.


Royal Mail

Royal Mail are the most widely recognised mail delivery company in the UK. Being on the UK’s 29 million doorsteps six days a week means they offer unparalleled price and convenience. The Independent Pharmacy uses Royal Mail’s Tracked 48, Tracked 24, and Special Delivery Guaranteed parcel services to offer reliable, fully-tracked delivery at very competitive prices. Your Royal Mail parcel will arrive with your normal daily delivery of post.

Please note: Royal Mail do not deliver on Sundays or Bank Holidays - this should be taken into account when ordering. 

If you are not home to accept your delivery, a card should be left by the Royal Mail representative. This card will provide details of where you can collect the order or how to arrange re-delivery.

Should you be unable to collect your missed delivery or arrange for your medication to be redelivered by Royal Mail, the pharmacy can resend your medication to the same, or a different address provided it has been returned to us and this happens within a 30 day window.

Once a package has been shipped with Royal Mail we advise that you are bound to the terms and conditions of their use together with the terms and conditions contained herein.

You have the right to cancel your order up to the point when your treatment is dispatched. The pharmacist must destroy any medication within 30 days of it being returned, even un-opened boxes, so we are not able to offer refunds once your treatment has been dispatched.



DPD Local is the most innovative parcel carrier around. Thanks to their industry-leading Predict service, they provide parcel recipients with a one hour delivery window, notified by email, so you don't have to wait in all day. What's more, it enables receivers to watch the progress of their delivery on a real-time map, all the way down to a final 15 minute time-slot. 

As well as keeping customers informed at every stage of the journey, DPD believe in maximising choice and convenience. That's why DPD provide access to a suite of options both on the day of delivery and the night before, allowing customers to take delivery of their goods in a way that suits. If you wish to reschedule, you can:

  • Select an alternative delivery date
  • Opt for delivery to a nominated neighbour
  • Have the parcel left in a specified safe place
  • Collect the parcel from your local DPD Pickup Shop
  • Upgrade delivery to By 12

Please note: DPD do not deliver on Saturdays, Sundays or Bank Holidays - this should be taken into account when ordering. 

Once a package has been shipped with DPD we advise that you are bound to the terms and conditions of their use together with the terms and conditions contained herein.

You have the right to cancel your order up to the point when your treatment is dispatched. The pharmacist must destroy any medication within 30 days of it being returned, even un-opened boxes, so we are not able to offer refunds once your treatment has been dispatched.


Forwarding houses

We are unable to ship orders to mailing or forwarding houses for onwards shipping to locations outside of the UK.


BFPO Postcodes

Unfortunately we are unable to deliver medicines to BFPO postcodes.


Remote Areas

Please be aware that Royal Mail Guaranteed services are not available to all customers in the UK, especially those that live in remote postcodes. Royal Mail advise customers of the following:

We deliver by 5.30pm the next working day in the following postcode areas:
AB30 - 39, 41 - 45, 51 - 56
GY9 Alderney (Channel Islands)
HS1, 3 - 9
IV21 - 28, 40 - 49, 51 - 56
KA27, 28
KW1 - 3, 5 - 15
KW16 Stromness Town only
PA20 (0&9)
PA28 - 38, 41 - 49, 76, 77
PH15, 17 - 26, 31 - 40, 49, 50


We deliver within two working days by 5.30pm to the following postcodes areas:
GY1 Herm (Channel Islands)
GY9 Sark (Channel Islands)
PA60 - 75, 78
ZE2, 3


We deliver within three working days by 5.30pm to the following postcode areas:
KW16 - non-Town
PH30, 41 - 44


Please note: This applies to our 'Special Delivery' and 'Saturday Guaranteed' services.


International Orders

We are currently unable to ship orders outside of the UK.

We are unable to ship orders to mailing or forwarding houses for onwards shipping to locations outside of the UK.

Need to know more about Chlamydia?

Visit our advice area or contact our support team

Azithromycin 500mg Tablets Reviews

Unsure about a treatment?
Ask our medical team for impartial information and advice about any treatment we provide or medical condition that we treat before you buy.

Frequently Asked Questions

  • What happens if Chlamydia is left untreated?

    Chlamydia rarely clears without treatment. If you leave chlamydia untreated, you run the risk of transmitting the infection to other people, and of the infection leading to serious consequences.

    In women, chlamydia can lead to pelvic inflammatory disease or cervicitis, an inflamed cervix. Complications due to these conditions range from vaginal discharge and pain during sex to irreversible damage to the fallopian tubes. This can lead to infertility, and may cause an ectopic pregnancy, which can be life-threatening.

    In men, chlamydia can lead to an inflamed urethra, or urethritis. This can make passing urine very painful, among other symptoms. If the inflammation spreads to the testes and epididymis, there is a risk of infertility.

    Chlamydia can lead to reactive arthritis in both sexes.

  • What is Azithromycin?

    Azithromycin is an antibiotic tablet. It used to treat certain bacterial infections, including chlamydia, gonorrhea and urethritis. An advantage of this medicine is that you will only need to take one dose to cure an infection. This is because it works for longer than most other antibiotics. As a result, there is a reduced risk of side effects.

  • How does this treatment work?

    Azithromycin stops bacteria from multiplying, preventing the infection from spreading. It does this by reducing protein production and peptide activity. By stopping the infection from spreading, it allows the immune system to attack the remaining bacteria.

  • How do I take this medicine?

    Azithromycin treatments are taken all at once. You will take 1g of medicine – this will usually consist of two 500mg tablets. Take this medicine on an empty stomach. This can be an hour before a meal, or two hours afterwards.

  • How long will it take for this medicine to work?

    It takes one week for azithromycin to treat a chlamydia infection. It may take up to two weeks for certain symptoms to go away.

  • Why is the treatment not working?

    If the treatment is not working, it may be the case that your symptoms are due to some other cause. This can include another sexually transmitted infection or a urinary tract infection. Endometriosis sometimes causes similar symptoms in women. Otherwise, you may have become re-infected if you have had sex with a partner who has not been fully treated.

    Consult your GP or local sexual health clinic if your symptoms are not clearing. In rare cases, your infection may be resistant to this antibiotic.

  • Can I repeat my chlamydia test to see if the medicine is working?

    You will need to wait until six weeks after your treatment. If you take another test before this, it will still show positive, whether the antibiotics have worked or not.

  • How long do I need to wait before having sex again?

    You and any sexual partners will be advised to fully abstain from all kinds of sex (vaginal, anal, oral) for one week while treating chlamydia with azithromycin. This includes sex with a condom. It is possible to get re-infected if your partner has not been treated.

  • Does Azithromycin interact with any other medicines?

    Always inform your doctor of medicines you are taking or intend to take. Azithromycin is known to interact with medicines including blood thinners, Digoxin, Amiodarone, Quinidine and typhoid vaccines.

    Take care if consuming alcohol while taking Azithromycin, as it may add to side effects such as dizziness and digestive problems.

Authored By:

A photo of  Chris Newbury

Chris Newbury

BPharm IP

Published on: 02-02-2017

Last modified on: 02-02-2019

Reviewed By:

A photo of  Scott McDougall

Scott McDougall


Reviewed on: 02-02-2019

Next review date: 02-02-2021

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