Buy Azithromycin 500mg Tablets online

Azithromycin 500mg Tablets (2 tablets)

Order before 4pm for delivery from Tue. 23 Jan.

Description for Azithromycin 500mg Tablets

Azithromycin is the antibiotic of choice to treat chlamydia. It can be taken as a convenient single dose and clears up most chlamydia infections within 7 days. Chlamydia antibiotic treatment can be bought from the Online Doctor 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 500mg tablets (chlamydia antibiotics) are available to buy from The Independent Pharmacy Online Doctor service, following a free consultation, to treat chlamydia in those who have had a positive chlamydia test or have had unprotected sex with someone who has. To find out more about chlamydia and see all the available treatments, see our Chlamydia page.

Azithromycin 500mg Tablets contain the active ingredient Azithromycin. This drug belongs to a category of medicines known as macrolide antibiotics. These antibiotics are used to treat chlamydia and other infections that are caused by bacteria.
Azithromycin 500mg Tablets work to inhibit a bacteria’s ability to produce proteins that are essential to their growth. Without these proteins, they will be unable to increase in size or numbers. This mechanism of action will therefore halt the spread of the infection, allowing the body’s natural immune system to kill off any remaining bacteria.
Azithromycin is a broad-spectrum antibiotic. It is effective against a wide array of bacteria that are responsible for causing various types of infection. When being taken to treat the sexually-transmitted disease chlamydia; two tablets (2x500mg) are taken together as a single dose. A follow-up dose is not usually necessary. A single dose Azithromycin will normally clear up most cases of chlamydia within 7 days. You can take another chlamydia test 14 days after your treatment to ensure the infection has cleared up.
Azithromycin is categorised as a prescription only medicine (POM). It is available as a generic tablet as well as the branded version Zithromax. Azithromycin preparations can also be used to treat many different types of bacterial infections, such as respiratory infections, skin infections, ear infections and sexually-transmitted infections (STI’s), such as Chlamydia and Gonorrhoea.

There are currently no Non-Prescription Alternatives for the treatment of Chlamydia.

You can find your local GUM sexual health clinic on the NHS choices website for treatment.

*Prescription medicines are supplied subject to a medical consultation at the discretion of a doctor.
  • Take TWO Azithromycin 500mg tablets as a single dose.
  • 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 heart beat.

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.


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
  • Special Delivery (Guaranteed before 1pm) - £8.95
  • Saturday Guaranteed before 1pm - £10.45

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

All orders can be fully tracked 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.

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.



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.



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 chat online to our support team

Unsure about a treatment?
Take a free online assessment with our medical team for impartial help and advice on your condition.

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.

We are a trusted pharmacy

We are regulated by a number of organisations in the UK including the MHRA, GPhC & CQC to ensure we offer the highest level of service to every one of our customers.

Why choose The Independent Pharmacy?

How does it work?

It's easy! Follow our simple process to get the treatment or advice you need in no time.

  • 1 Complete a simple health questionnaire
  • 2 A healthcare professional reviews your answers
  • 3 You receive the right treatment or advice
  • 4 Easily re-order in a few clicks

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