Select from our A to Z index of CMI (Consumer Medicines Information) leaflets for both prescription and over-the-counter medicines. Available as HTML, PDF and large font PDF.
Clarithromycin (kla-ree-thro-MY-sin) tablets
Consumer Medicine Information
This leaflet answers some common questions about Clarihexal. It does not contain all the available information. It does not take the place of talking to your doctor or pharmacist.
All medicines have risks and benefits. Your doctor has weighed the risk of you taking Clarihexal against the benefits it is expected to have for you.
If you have any concerns about taking this medicine, ask your doctor or pharmacist.
Keep this leaflet with the medicine. You may want to read it again.
Clarihexal is used to treat certain bacterial infections, including the following:
Clarihexal is also used to prevent a specific bacterial infection associated with HIV infection.
Clarihexal is an antibiotic that belongs to the group of medicines called macrolides. These medicines work by killing or stopping the growth of bacteria which cause infections. It contains the active ingredient clarithromycin.
Your doctor, however, may have prescribed Clarihexal for another purpose. Ask your doctor if you have any questions about why Clarihexal has been prescribed for you.
Clarihexal will not work against infections caused by viruses, such as colds or flu.
Clarihexal to treat peptic ulcer
Peptic ulcers are associated with an infection in the intestine and stomach by a bacteria called Helicobacter pylori (H. pylori). Nearly all patients with peptic ulcers are infected with this bacteria.
The H. pylori infection can be treated with a combination of Clarihexal (clarithromycin), another antibiotic (amoxicillin) and another medicine called omeprazole (used to control the acidity of the stomach).
However, the best combination of tablets to treat H. pylori infection is yet to be determined. Your doctor will determine the best combination for you.
If your symptoms return, consult your doctor. It is possible that Clarihexal may no longer be effective in treating the H. pylori infection and a different antibiotic may be needed.
There is no evidence that Clarihexal is addictive. Clarihexal is only available with a doctor's prescription.
Do not take Clarihexal if you have an allergy to:
Do not take Clarihexal if you have ever had:
Some of the symptoms of an allergic reaction may include rash, itching or hives, swelling of the face, lips, tongue or other parts of the body, shortness of breath, wheezing or difficulty in breathing.
Do not take Clarihexal if you have any of the following medical conditions:
Do not take Clarihexal if you are currently also taking the medicines, cisapride (such as Prepulsid®), pimozide (such as Orap®), ergotamine (such as Cafergot®), dihydroergotamine (such as Dihydergot®), astemizole or terfenadine (antihistamine drugs) or statins (cholesterol lowering drugs).
Do not take this medicine after the expiry date printed on the pack or if the packaging is torn or shows signs of tampering. If it has expired or is damaged, return it to your pharmacist for disposal.
Tell your doctor if you have allergies to:
Tell your doctor if you are pregnant or plan to become pregnant or are breast-feeding. Your doctor will discuss the risks and benefits involved.
Tell your doctor if you have or have had any medical conditions, especially the following:
If you have not told your doctor about any of the above, tell him/her before you start taking Clarihexal.
Tell your doctor or pharmacist if you are taking any other medicines, including any that you get without a prescription from your pharmacy, supermarket or health food shop.
Do not take Clarihexal if you are currently also taking the following medicines:
Some medicines and Clarihexal may interfere with each other. These include:
These medicines may be affected by Clarihexal, or may affect how well it works. You may need to use different amounts of your medicines, or you may need to take different medicines.
Your doctor and pharmacist have more information on medicines to be careful with or avoid while taking this medicine.
Follow all directions given to you by your doctor or pharmacist carefully. They may differ from the information contained in this leaflet.
If you do not understand the instructions, ask your doctor or pharmacist for help.
The dose of Clarihexal will depend on the infection to be treated.
For respiratory tract infections and skin infections, the usual adult dose is one Clarihexal 250mg tablet twice a day.
For more severe infections, the dose can be increased to two Clarihexal 250mg tablets twice a day.
Your doctor will adjust the amount or frequency of your doses according to the infection being treated and the severity of your condition.
Clarihexal tablets should be swallowed whole with a glass of water.
If you need to break Clarihexal, hold tablet with both hands and snap along break line.
Keep taking Clarihexal until you finish the pack or for as long as your doctor tells you. If you are being treated for an infection, Clarihexal is usually taken for one or two weeks.
Do not stop taking Clarihexal, even if you feel better after a few days, unless advised by your doctor. Your infection may not clear completely if you stop taking your medicine too soon.
Check with your doctor if you are not sure how long you should be taking Clarihexal.
Take your dose as soon as you remember, and continue to take it as you would normally.
If it is almost time for your next dose, skip the dose you missed and take your next dose when you are meant to.
Do not take a double dose to make up for the dose you missed. This may increase the chance of you getting an unwanted side effect.
If you are not sure what to do, ask your doctor or pharmacist.
If you have trouble remembering when to take your medicine, ask your pharmacist for some hints.
Immediately telephone your doctor, or the Poisons Information Centre (telephone 13 11 26) for advice or go to Accident and Emergency at the nearest hospital, if you think you or anyone else may have taken too much Clarihexal. Do this even if there are no signs of discomfort or poisoning.
You may need urgent medical attention.
Symptoms of an overdose may include severe gastrointestinal symptoms, liver problems, or allergic reactions.
If you are about to start taking a new medicine, tell your doctor and pharmacist that you are taking Clarihexal.
Tell all the doctors, dentists and pharmacists who are treating you that you are taking Clarihexal.
If you become pregnant while taking this medicine, tell your doctor immediately.
If you are taking Clarihexal for an infection and your symptoms do not improve within a few days, or if they become worse, tell your doctor.
If you get severe diarrhoea, tell your doctor or pharmacist immediately. Do this even if it occurs several weeks after stopping Clarihexal. Diarrhoea may mean that you have a serious condition affecting your bowel. You may need urgent medical care. Do not take any medicine to stop your diarrhoea without first checking with your doctor.
If you have to take any urine tests, tell your doctor you are taking Clarihexal as it may affect the results of some laboratory tests.
Do not stop taking Clarihexal without your doctor's permission.
Do not use Clarihexal to treat any other complaints unless your doctor says so.
Do not give your medicine to anyone else, even if they have the same condition as you.
Tell your doctor or pharmacist as soon as possible if you do not feel well while you are taking Clarihexal. All medicines can have side effects. Sometimes they are serious, most of the time they are not.
Do not be alarmed by this list of possible side effects. You may not experience any of them.
Ask your doctor or pharmacist to answer any questions you may have.
Tell your doctor or pharmacist if you notice any of the following and they worry you:
These are the more common side effects of Clarihexal. Mostly, these are mild and short-lived.
Tell your doctor immediately if you notice any of the following:
This above list includes serious side effects that may require medical attention. Serious side effects are rare.
If any of the following happen, stop taking Clarihexal and tell your doctor immediately, or go to Accident and Emergency at your nearest hospital:
This above list includes very serious side effects. You may need urgent medical attention or hospitalisation. All of these side effects are very rare.
Tell your doctor or pharmacist if you notice anything that is making you feel unwell. Other side effects not listed above may also occur in some people.
Tell your doctor immediately if you notice any of the following side effects, even if they occur several weeks after stopping treatment with Clarihexal.
These are rare but serious side effects. You may have a serious condition affecting your bowel and you may need urgent medical care.
Do not take any diarrhoea medicine without first checking with your doctor.
Keep your medicine in the original container. If you take it out of its original container it may not keep well.
Keep your medicine in a cool dry place where the temperature stays below 25°C.
Do not store Clarihexal or any other medicine in the bathroom or near a sink. Do not leave it on a window sill or in the car. Heat and dampness can destroy some medicines.
Keep it where children cannot reach it. A locked cupboard at least one-and-a-half metres above the ground is a good place to store medicines.
If your doctor tells you to stop taking this medicine or the expiry date has passed, ask your pharmacist what to do with any medicine that is left over.
Clarihexal 250mg: white, oblong, convex, coated tablet scored on both faces.
Available in blister packs of 14 tablets.
Each Clarihexal 250mg tablet contains 250mg clarithromycin.
Each Clarihexal tablet also contains: microcrystalline cellulose, magnesium stearate, croscarmellose sodium, powdered cellulose, colloidal anhydrous silica, lactose, hypromellose, macrogol 4000 and titanium dioxide.
Sandoz Pty Ltd
ABN 60 075 449 553
19 Harris St
Pyrmont NSW 2009
Tel: 1800 634 500
This leaflet was revised in May 2012.
Australian Register Numbers
Clarihexal 250mg tablet: AUST R 101265 (blisters)
Published by MIMS/myDr September 2012