Standby antibiotic, Azithromycin 500mg x 3 tablets for treatment of travellers' diarrhoea for use when needed, available to buy online from Dr Fox Pharmacy.

Read medical information and answer medical questions to buy treatment online.

Medical information

Written and reviewed by a team of doctors. Dr Fox is regulated by the CQC & GPhC.

Recommended reading: background information on travellers' diarrhoea and NHS Fit for Travel travellers' diarrhoea information.

Travellers most likely to benefit from antibiotics:

  • If going to a remote location with little or no access to good medical assistance.
  • If you are at high risk of the diarrhoea leading to severe illness e.g. poorly controlled diabetes, renal impairment, heart failure, reduced CD4 HIV, or other reduced immunity.
  • With pre-existing bowel problems where infection may trigger a relapse e.g. ulcerative colitis, Crohn's disease, coeliac disease, and previous bowel surgery.
  • With a tendency to severe travellers' diarrhoea (on the basis of previous travel experience)

Note: azithromycin is not licensed to treat travellers' diarrhoea, but it has been prescribed by doctors as a treatment for many years.


If you have known allergy to azithromycin, erythromycin, or clarithromycin you should not take azithromycin for travellers' diarrhoea.

There are some medical conditions where you should not take azithromycin:

  • a tendency to irregular heartbeat or other heart disease
  • myasthenia gravis
  • liver disease
  • kidney disease

It is not recommended to take azithromycin when trying to conceive, or during pregnancy and breastfeeding, without first discussing with your own GP.


Treatment with azithromycin is 500mg once a day for 3 days. Start the course as soon as you get diarrhoea, not before. It is not a preventative. The symptoms of travellers' diarrhoea should improve within 24 hours of starting antibiotic.

Side effects

If there are any side effects the most common are stomach upset, nausea, and diarrhoea. For details see the patient information leaflet supplied with the tablets.

Seeking help

Symptoms should start to improve within 24 hours of starting azithromycin. Medical advice should be sought if symptoms are not improving after 2 or 3 days, or are worsening, or if any of the following occur:

  • Profuse diarrhoea and vomiting lead to dehydration.
  • Blood and green or yellow slime in the motions with severe abdominal pains.
  • Diarrhoea associated with rashes.
  • High fever and headache with diarrhoea (particularly in malaria areas).

Treating diarrhoea

  • Try to get plenty of rest.
  • Drink plenty of fluids, even if vomiting (at least 3-4 litres/day).
  • Continue to eat simple foods such as rice and dried bread, appetite permitting.
  • Pay attention to personal hygiene, to prevent spread.

Azithromycin is effective in reducing the symptoms of travellers' diarrhoea, particularly if taken with Loperamide.

Azithromycin 500mg Patient Leaflet

Antibiotic guardianship

Antibiotic Guardian logo

To combat antibiotic resistance please:

  • Only use antibiotics when needed
  • Never share antibiotics
  • Always complete course as instructed
  • Take unused medicine to local pharmacy for disposal

Buy treatment
Dr Tony Steele

Authored 22 March 2010 by Dr Tony Steele
Last updated 15 October 2021

Reviewed by Dr A. Wood, Dr B. Babor, Dr P. Hunt
Last reviewed 15 January 2021


Buy Azithromycin online in UK

How to order Azithromycin online for UK delivery:

  1. Read medical information about Azithromycin
  2. Answer medical questions to check for eligibility

Once completed patients choose treatment, register details, and pay online. A doctor will review your order and issue the prescription electronically to our pharmacy. Medicine is then delivered direct to you (tracked 24hr delivery).


Azithromycin 500mg3 tablets (1 course)£9.90

Dr Fox charges a small prescription fee per order.

Prescription fees

Dr Fox supplies medicine on prescription and charges a small prescription fee based on the order value of each prescription.

Prescriptions are issued by our doctors online and sent electronically to our pharmacy.

Order valuePrescription fee
up to £10£1.00
up to £20£2.00
up to £40£3.00
over £40£4.00

If you have your own private or NHS paper prescription please post to our pharmacy (details).

Dr Fox prices are 25%–50% lower than other UK online clinics.

Delivery charges

UK delivery only: £2.90 per consultation via Royal Mail 24 Signed For (1-3 working days with tracking).

Parcel forwarding services are not permitted. Use only UK home or work delivery address.

Returns and refunds - unwanted items can be returned within 14 working days for a full refund.

  1. Medical questions
  2. Choose treatment
  3. Complete order
NOTE: Supply of antibiotic for traveller's diarrhoea currently suspended - apologies for inconvenience.

Answer medical questions to order(travellers' diarrhoea)

Have you read the medical information?

Read the medical information.

Are you aware self-treatment with antibiotics is ONLY suitable for the following people?

  • Travellers to remote rural areas, who are distant from medical help.
  • Travellers with pre-existing bowel problems such as inflammatory bowel disease where infection may trigger a relapse.
  • Travellers with pre-existing medical conditions which may be worsened by severe infection or dehydration, i.e. poorly controlled diabetes, renal impairment etc.
  • Travellers with a tendency to severe travellers’ diarrhoea (on the basis of previous travel experience).

Are you travelling to Europe, North America, or Australasia?

Are you allergic to azithromycin, erythromycin, or clarithromycin?

Have you been diagnosed with liver, kidney, or heart disease?

Are you taking any of the following medications regularly?

  • Ciclosporin - for reducing immunity after transplant
  • Digoxin - for irregular heart or heart failure
  • Ergotamine - taken rarely for migraine
  • Terfenadine - antihistamine for hay fever and allergy
  • Theophylline - for asthma used rarely
  • Disopyramide - for irregular heart used rarely
  • Rifabutin - rarely used antibiotic
  • Coumarins - anticoagulant for thinning the blood -includes warfarin
  • Avomine or other antisickness tablets containing promethazine - NOT to be taken at the same time as azithromycin

Are you planning to take azithromycin whilst pregnant or breastfeeding?

Are you aware traveller's diarrhoea should start to improve within 24 hours of starting antibiotic?

Do you agree to azithromycin being supplied to you for travellers' diarrhoea 'off label'?

If a medicine is used for an off label (unlicensed) purpose the manufacturer is not liable in case of adverse events. Doctors take the responsibility for the prescribing.

Do you have any further medical information or questions?

Is there anything you do not understand or do you need further help?

Do all the following apply to you?

  • The medication is for my own use and I will not share with anyone else
  • I will read the information leaflet supplied with my tablets
  • I am over 18 and I agree to identity verification checks
  • I have completed this questionnaire myself and fully understand all the information
  • My responses are honest and accurate, and I understand that this is necessary for a safe medical assessment
  • I agree to the terms & conditions, privacy policy, & data sharing policy

Product reviews

Azithromycin rated 4.64/5 in 73 product reviews

See over 30,000 service reviews of Dr Fox


Very good for sinus problem

21/08/2021 09:40
Anonymous Verified


Fantastic and good medicine. Could be better if they send or have the "Azithromycin 500 mg" ( 4 or 3 tablets ) Thank you.

27/12/2020 12:13
E. Rodriguez Verified


Best to be taken just with food to avoid stomach upset. Works very well though.

03/07/2020 09:45
Anonymous Verified


very good.

22/05/2020 13:02
V. Johnson Verified


good sevice

01/05/2020 19:49
R. Yeardley Verified

Read more reviews

The order process

Answer short medical questionnaire

Choose medication, register, and pay

Doctor issues prescription online

Pharmacy team post medication direct