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Home / Sexual Health / Chlamydia / Azithromycin


  • Box of Azithromycin 500mg film-coated tablets
  • Box of Azithromycin tablets with blister pack
  • Back view of Azithromycin 500mg film-coated tablets blister pack

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Note: You must complete a short online consultation so that our doctor can ensure that the treatment is suitable for you. The above pricing should only be used as a reference. The final decision to issue this treatment lies with the prescribing doctor.

How to buy Azithromycin?

When buying Azithromycin for chlamydia, you will have had to of tested positive for the infection. You will then obtain a prescription. Testing for chlamydia can be done at some doctor's surgeries, sexual health clinics and at home if you are a young person between 16-24 years in the UK. When buying Azithromycin online, you will still require a prescription. This can be easily obtained when completing our quick consultation that will take approximately five minutes. A certified doctor reviews this and then you can order Azithromycin online.

Is it safe to order online?

When ordering from a certified online pharmacy, you can be ensured that your medication is safe. If the pharmacy doesn't ask you to complete essential health and medical question, however, this is a telltale sign that the website isn't certified. The website should also display clear signs that it is registered and approved by the relevant authorities. In the UK, this includes being registered by the MHRA, GMC .

All medication will be delivered in tamper proof packaging complete with the full patient leaflet, which confirms that the medication is clinically proven and highly effective.

What is included in the price?

When ordering Azithromycin online here at Medilico, this is an all-inclusive price including the prescription, consultation, medication and delivery. There are no hidden costs. The price adjusts depending on the dosage and quantity you have ordered.

Can you buy without a prescription?

No. All clinically proven medication requires a valid prescription and Azithromycin is no exception. This is to confirm the medication is perfectly safe and highly effective for you to use. The prescription process will involve a short consultation – this is the same in person as well as online – and involves medical and personal question to ensure Azithromycin is compatible with you. For STI medications, you must have tested positive before taking the treatment.

What Is Azithromycin?

Azithromycin is a macrolide antibiotic used to treat a broad range of bacterial infections. Its active ingredient is azalide. It's often sold under the brand names Zithromax or Zmax.

Azithromycin's broad spectrum basis means it's capable of clearing many bacterial infections. Azithromycin is used to treat STIs including chlamydia, ureaplasma, mycoplasma and bacterial infections of the respiratory tract such as chest infections. It's also used for skin, eye, mouth and intestine problems.

The high dose stays in your system for a longer period of time meaning it kills infections swiftly compared to other antibiotics. The available single dose mean side effects can be limited.

Azithromycin is often a discreet, single dose antibiotic that is more effective and better tolerated than other multispectrum antibiotics. It is not based on penicillin and is, therefore, available to those with allergies or intolerance.

How Does Azithromycin Work?

When bacteria enter the body they begin to breed. This can happen so swiftly that your immune system struggles to cope. Symptoms of fever and pain can accompany any type of bacterial infection, making you feel unwell and preventing you from working or enjoying your life. Azithromycin works to heal you quickly by disrupting the bacteria's protein and peptide production. This prevents it from breeding. The weakened bacteria is then killed and removed by the immune system. It's important to realise that no antibiotic will cure colds, flu or viruses. Don't take antibiotics unnecessarily as this can cause problems in the future. For chlamydia, this means testing positive for the infection before obtaining a prescription.

How To Use Azithromycin

Azithromycin is an effective health treatment but you must take it correctly to benefit from its advantages. In particular, if you are prescribed more than one dose you must finish the whole course.

The length of your course will be decided by your prescribing doctor, but it can be just one dose in adults over 18. Take the course exactly how your prescription instructs you.

You can take Azithromycin with or without food unless you have been prescribed a capsule form in which case it should be taken without food. Do not crush, cut or chew the tablet. This can release its active ingredient too quickly and the medicine may be processed by your liver before absorbing into your bloodstream. This can affect how well Azithromycin treats your infection.

Azithromycin Dosages

A single dose of Azithromycin will clear some sexually transmitted infections in adults, others infections may need a short course of tablets. Because it works rapidly you may start to feel better before the end of your course, but it's important to keep taking any prescribed antibiotics until you have finished all your tablets. If you leave some for another time or simply throw them away you raise your risk of later developing antibiotic-resistant infections. Your current infection may also re-establish itself if it's not completely treated meaning you will need another course of antibiotics.

If you're taking Azithromycin for an STI, it's good practice take a repeat screening after several weeks to ensure the infection has gone.

Azithromycin Side Effects

The majority of medicines have side effects. Some of these are welcome, others are uncomfortable or on rare occasions, dangerous. Because Azithromycin is a short dose many people will not experience side effects, and those who do can usually manage them over the short timeframe Azithromycin is in their system. If any side effects worsen or become intolerable you should seek medical advice.

Common side effects include:

  • Diarrhoea
  • Stomach ache
  • Nausea
  • Flatulence
  • Lack of appetite
  • Headache
  • Feeling dizzy
  • Fatigue

Rare but more serious reported side effects include bloody diarrhoea, jaundice, pancreas inflammation characterised by severe abdominal pain, urine problems including difficulty urinating, bruising or bleeding, sensitivity to sunlight and irregular heartbeat.

These side effects are not common, but if you experience them speak to your doctor.

If you experience wheezing, a swollen mouth, tongue, lips or develop hives you may have had an allergic reaction. This is rare but serious. Seek medical attention immediately if you believe you are allergic to Azithromycin.

Azithromycin Precautions

If you need to take a course of Azithromycin you may find your skin easily burns in sunlight. Use sunscreen, clothing and a hat to prevent this and avoid tanning beds.

Antibiotics of any nature will not clear a cold, flu or a viral infection. Azithromycin's active ingredient only hampers bacterial cells. If you take antibiotics for a cold you may find that in future you become prone to antibiotic resistant strains of infection.

Antibiotics are for use when deemed absolutely necessary by your doctor, but bacterial STIs should always be treated. Azithromycin will clear bacterial STIs quickly so your discomfort is swiftly treated and you do not spread the infection.

Other medication interactions are another precaution of Azithromycin. You should always read the instruction leaflet that is enclosed with your dose and be aware of the following medication contraindications.

Other Medication Interactions

Some medicines may interfere with how Azithromycin works and conversely Azithromycin may stop other medicines from working correctly. Always tell your doctor if you are taking any medicines even if they are over-the-counter tablets or herbal remedies.

Medicines that could cause a contraindication include:

  • If taken within two hours before or after Azithromycin antacids with aluminium or magnesium can make your treatment less effective. This includes medicines like Milk of Magnesia and over-the-counter heartburn remedies.
  • Blood thinners such as warfarin react with Azithromycin and increase its activity. Blood may become thinner and potentially cause bleeds.
  • Typhoid vaccines should be avoided at the same time as a course of Azithromycin, even though it is sometimes used to treat typhoid infections.
  • The medicine Quinidine often used for heartbeat disorders may be adversely affected.
  • Medicines with ergotamine dihydroergotamine or methysergide which are used to treat a migraine.
  • Cisapride used for stomach problems.
  • Terfenadine used for hay fever.
  • Some medicines used to treat HIV infection.
  • Cyclosporin used to reduce the risk of organ transplant rejection.
  • Some cholesterol reducing medicines.
  • In the past it was thought that antibiotics interfere with the contraceptive pill's effectiveness. It's thought now this only applies to certain antibiotics and Azithromycin is not one of these. However, if you experience vomiting or diarrhoea as side effects of Azithromycin, this could stop your pill working properly. Follow the missed pill procedure if you vomit or have severe diarrhoea.

Not all of these medications mean you cannot use Azithromycin, your doctor will decide if the benefits outweigh any potential risks.

Who Can Use Azithromycin?

Adults, the elderly and children can use Azithromycin when prescribed a course by their doctor, but only adults over the age of 18 can buy it online. Azithromycin is a trustworthy antibiotic that's used by many health professionals to treat bacterial infections. It's particularly useful in treating sexually transmitted infections such as chlamydia, but there are some people who should not use this medicine.

Your doctor will provide further details, but usually, the following individuals should use a different type of antibiotic treatment:

  • Those who are allergic to Azithromycin or any similar antibiotics such as erythromycin
  • Those with liver disease or complications such as jaundice
  • Those with kidney disease or complications
  • Those with an unusual heart rhythm
  • Those with myasthenia gravis
  • Those with Long QT syndrome
  • Pregnant women are advised against Azithromycin. There are no human studies to suggest it causes a problem with a developing baby, but to be safe you should not take a course unless you doctor recommends it.
  • Breastfeeding mothers may pass traces of Azithromycin to their infant. There is no evidence this is harmful but speak to your doctor before combining the two. Taking some antibiotics can cause an infant to develop thrush or diarrhoea.

If you are unsure about your health status you should speak to your doctor who will make an informed decision. If Azithromycin is prescribed for the above conditions you may need extra monitoring.

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