Clamelle tablets contain the active ingredient azithromycin, which is a type of medicine called a macrolide antibiotic. (NB. Azithromycin is also available without a brand name, ie as the generic medicine.) Azithromycin is used to treat infections caused by bacteria.
Azithromycin works by preventing bacteria from producing proteins that are essential to them. Without these proteins the bacteria cannot grow, replicate and increase in numbers. Azithromycin therefore stops the spread of infection and remaining bacteria are killed by the body's immune system or eventually die.
Azithromycin is a broad-spectrum antibiotic that is active against a wide variety of bacteria that cause a wide variety of infections. Clamelle tablets are used to treat the sexually-transmitted infection chlamydia. Two tablets are taken together as a single dose.
Clamelle tablets can be bought without a prescription from participating pharmacies as part of the Clamelle chlamydia testing service. First, you buy and use the Clamelle chlamydia test kit, which is a simple urine test that is sent off to a laboratory. You can choose to have your result sent to you in the post, or to find out your result by returning to the pharmacy. The results are usually ready within seven days
If your test comes back positive and you don’t have any symptoms of STIs, you can then buy Clamelle tablets to treat the infection. You will need to take either your results letter, or the verification tear off slip from your test, to the pharmacy. The pharmacist will verify your result online first, using the secure lab database, and will then ask you some questions to make sure it is safe for you to take the tablets.
If you have tested positive, the pharmacist will provide you with partner notification slip(s) for you to give or send to your partner(s) to help with letting them know they may have chlamydia and encouraging them to seek treatment. Partners can then use this notification slip to buy Clamelle tablets from the pharmacy (if suitable) without needing to buy a test.
You can also buy Clamelle tablets if you have a positive NHS chlamydia test, providing you take the result slip to the pharmacy and the pharmacist decides you are eligible. If you are a partner of someone who has had a positive NHS chlamydia test, you can also buy Clamelle tablets, provided the pharmacist decides you are eligible. You will need to take your NHS partner notification slip to the pharmacy.
This medicine should not be used if you are allergic to one or any of its ingredients. Please inform your doctor or pharmacist if you have previously experienced such an allergy.
If you feel you have experienced an allergic reaction, stop using this medicine and inform your doctor or pharmacist immediately.
Certain medicines should not be used during pregnancy or breastfeeding. However, other medicines may be safely used in pregnancy or breastfeeding providing the benefits to the mother outweigh the risks to the unborn baby. Always inform your doctor if you are pregnant or planning a pregnancy, before using any medicine.
Medicines and their possible side effects can affect individual people in different ways. The following are some of the side effects that are known to be associated with this medicine. Just because a side effect is stated here does not mean that all people using this medicine will experience that or any side effect.
The side effects listed above may not include all of the side effects reported by the medicine's manufacturer. For more information about any other possible risks associated with this medicine, please read the information provided with the medicine or consult your doctor or pharmacist.
It is important to tell your pharmacist what medicines you are already taking, including those bought without a prescription and herbal medicines, before you take this medicine. Similarly, check with your pharmacist before taking any other medicines in combination with this one, to make sure that the combination is safe.
Your pharmacist cannot sell you this medicine if you are taking any of the following medicines, because the combination may not be safe:
The manufacturers of the following medicines recommend that azithromycin is not taken in combination with these medicines:
Antacids for indigestion and heartburn reduce the absorption of azithromycin from the gut if they are taken at the same time as azithromycin. This could make the antibiotic less effective. Clamelle tablets should therefore be taken at least one hour before or two hours after taking any antacid.
If you are taking an oral contraceptive pill and experience severe diarrhoea or vomiting after taking Clamelle tablets, this may make your pill less effective. You should keep taking your pill at your normal time, but refer to the patient information leaflet for your pill and follow the instructions for minimising the risk of contraceptive failure.
Azithromycin is also available without a brand name, ie as the generic medicine.