Azithromycin 500mg

Buy Azithromycin for Non-Specific Urethritis (NSU/NGU)

Azithromycin is an alternative treatment method for uncomplicated cases of NSU/NGU and a 3-day treatment course is available for patients that are unable to take doxycycline. Please note that 1-day courses of Azithromycin are no longer recommended due to the high prevalence of antibiotic resistance.

All our products are genuine UK medicines and are dispensed by our partner pharmacy based in the UK.

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  • 3-day treatment course
  • Alternative treatment regime if you cannot take doxycycline
  • Not suitable for patients who are allergic to Azithromycin or other macrolide antibiotics incl. erythromycin and clarithromycin
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Azithromycin belongs to a group of medicines called macrolide antibiotics and contains the active ingredient azithromycin dihydrate. Antibiotics are used to treat infections caused by micro-organisms like bacteria. Azithromycin is used for the treatment of certain infections caused by bacteria that are sensitive to it, including Non-Specific Urethritis (NSU/NGU).


Azithromycin is not suitable if you are allergic to azithromycin dihydrate or any other macrolide antibiotic such as erythromycin or clarithromycin or to any of the other ingredients of this medicine listed in the patient information leaflet.

Pregnancy and Breastfeeding

If you are pregnant or breastfeeding, think you may be pregnant or are planning to have a baby, ask your doctor or pharmacist for advice before taking this medicine. You should not use Azithromycin during pregnancy, unless explicitly advised by your doctor. Azithromycin should not be used if you are breastfeeding.

Important Interactions

You must tell your doctor if you are taking, have recently taken or might take other medicines, in particular:

  • antacids - used for heartburn and indigestion
  • ergotamine - used for migraine, should not be taken at the same time as serious side effects may develop (with numbness or tingling sensations in the limbs, muscle cramps, headaches, convulsions, abdominal or chest pain)
  • warfarin or similar medicines - used to thin the blood, as Azithromycin can thin the blood even more
  • terfenadine - used to treat hay fever or skin allergy, should not be taken at the same time as this may cause severe heart problems (shown on an ECG)
  • quinidine - used to treat heart rhythm problems
  • digoxin - used to treat cardiac impairment, as Azithromycin can make the effects of this stronger
Recommended Dosage

3-day course: 1g orally as a single dose, followed by 500mg once daily for two days

Side Effects
  • abdominal pain
  • feeling sick (nausea)
  • vomiting
  • wind (flatulence)
  • diarrhoea
  • lack of appetite (anorexia)
  • feeling dizzy
  • headache
  • skin reactions

Get urgent medical help if you experience any of the following:

  • swelling of the face, lips, tongue, throat, hands, feet or genitals
  • blistering of the skin, mouth, eyes and genitals
Please Note

All medication can cause side effects. We have only listed a few to be aware of. Details of all side effects, including rare side effects to be aware of, are listed in the patient information leaflet (PIL). When completing your medical questionnaire, it is very important that you answer the questions truthfully. This is to ensure your doctor has a full picture of your medical history before prescribing. List all medicines you are already taking, including non-prescription and herbal medicines.


Ofloxacin is an alternative if doxycycline and Azithromycin are not suitable.

Looking after your medicine

Do not take medicines after the expiry date stamped on the pack. Keep all medicines out of the reach and sight of children.

Medicines are only intended to be used by the person they are prescribed for. Do not give your prescribed medicine to anybody else, even if they have the same symptoms as you. Medicines can be harmful if used by anybody other than the person they have been prescribed for.

References Azithromycin 500mg Patient Information Leaflet
British National Formulary: azithromycin

Yes, Azithromycin is a prescription only medicine in the UK. It is therefore not available to buy over the counter without a prescription from a doctor.

You should avoid taking antacids containing magnesium or aluminium within 2 hours of taking Azithromycin (this applies before and after taking Azithromycin). This is because these types of medicines can make Azithromycin less effective.

A 3-day treatment regime for Azithromycin is effective for most uncomplicated cases of NSU/NGU. Whilst doxycycline is the preferred treatment for uncomplicated NSU/NGU, Azithromycin is available as an alternative for people who cannot take doxycycline. Please note that the shorter 1-day course of Azithromycin is no longer available.

It is important to take Azithromycin at the same time each day, which can be in the morning or the evening. Capsules should be taken at least 1 hour before or 2 hours after eating, whilst tablets can be taken with or without food.

Like most antibiotics, Azithromycin is not very good at distinguishing between the good and the bad bacteria your body. It will therefore also impact the good bacteria usually found in your gut. This is a reason why antibiotics like Azithromycin can cause an upset stomach. Some people find that eating products naturally high in good bacteria, such as probiotic yoghurts, can help restore a natural balance. If any symptoms are severe or persist, it is important to inform your doctor as soon as possible.

Last reviewed & updated  02/06/2020   Authored  15/09/2009

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