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Home - Chlamydia - Azithromycin

Chlamydia - Azithromycin

Azithromycin belongs to a group of medicines called macrolide antibiotics and is used to treat a multitude of bacterial infections.

Azithromycin works by stopping the bacteria from from reproducing and ultimately preventing the disease from spreading.

It has been found to be effective in treating chlamydia as a single high dose as it stays in the body for a relatively prolonged time making sure there is no chance that the infection returns.


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Azithromycin is an antibiotic that is used to treat both Gonorrhoea and Chlamydia.  It involves taking a one of dose of two tablets.  

Azithromycin is particularly effective because it remains in the system for long periods of time preventing recolonisation of the bacteria that causes chlamydia.

Azithromycin tablets are extremely effective because they attack the bacteria directly and remove the proteins necessary for them to survive.  

The bacteria will die off naturally and because it is now weakened it can be destroyed by the body's own immune system.


Recommended dose:- 2 x Azithromycin 500mg Tablets (1000mg total) as a single dose with plenty of water.

There is no evidence to show that multiple doses are more effective than the single. 

Before taking you should ascertain whether your diagnosis is chlamydia and not another infection. You can do this by going to your GP or by visiting your local sexual health clinic which can be found HERE.


Like all medicines, this medicine can cause side effects, although not everybody gets them. You can see a full list of side effects HERE

Common (may affect up to 1 in 10 people)

  • Lack of appetite (anorexia)
  • Feeling dizzy
  • Headache
  • Sensation of pins and needles or numbness (paraesthesia)
  • Changes in your sense of taste
  • Visual impairment
  • Deafness
  • Being sick (vomiting)
  • Stomach pain or cramps
  • Loss of appetite
  • Problems digesting your food
  • Skin rashes and itching joint pain (arthralgia)
  • Fatigue
  • Change in the quantity of the white blood cells and the concentration of bicarbonate in the blood.
    • If you have any of the following symptoms of a severe allergic reaction stop taking this medicine 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.
      • If you experience any of the following side effects contact your doctor 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.
        • Reporting of side effects

          If you get any side effects, talk to your doctor, pharmacist or nurse.


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    Always read the patient information leaflet before commencing treatment.

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