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Before taking telithromycin
Before taking telithromycin make sure your doctor or pharmacist knows:
- If you are pregnant, trying for a baby or breast-feeding.
- If you have liver or kidney problems.
- If you have heart problems, especially if it is a problem related to your heart beat.
- If you have porphyria (a rare blood disorder) or myasthenia gravis (a condition causing muscle weakness).
- If you are taking other medicines, including those available to buy without a prescription, herbal and complementary medicines.
- If you have ever had an allergic reaction to this or any other medicine.
How to take telithromycin
- Before starting this treatment, read the manufacturer's printed information leaflet from inside the pack.
- Take telithromycin exactly as your doctor has told you. It is taken once a day. Taking your dose at bedtime may help reduce side-effects such as dizziness and fainting.
- Swallow telithromycin tablets whole with a drink of water. Do not chew or break the tablets.
- You may take telithromycin before or after food.
- Keep taking this antibiotic until the course is finished unless you are told to stop. If you stop taking this antibiotic too soon your infection is likely to return and could be more difficult to treat.
- Try not to miss any doses. If you forget to take a dose, take it as soon as you remember but do not take two doses together to make up for a forgotten dose.
Getting the most from your treatment
- Telithromycin can cause dizziness and difficulties with eyesight, even after just one dose. Make sure your reactions are normal before driving, operating machinery or doing any other jobs which could be dangerous if you were not fully alert or able to see properly.
- Some people develop thrush (redness and itching in the mouth or vagina) after taking a course of antibiotics. If you think you have thrush speak with your doctor or pharmacist for advice.
- If you still feel unwell after completing your course of this antibiotic, make another appointment to see your doctor.
- If you are using oral combined hormonal contraception (the 'pill'), additional contraceptive precautions such as condoms are not required during a course of this antibiotic unless you are sick or have diarrhoea. If you need further advice, speak with your doctor or pharmacist.
- If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking telithromycin.
- This antibiotic may stop the oral typhoid vaccine from working. If you are having any vaccinations, make sure the person treating you knows that you are taking this medicine.
- If you buy any medicines, check with a pharmacist that they are safe to take with this antibiotic.
Can telithromycin cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. These usually improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following side-effects continue or become troublesome.
| Common side-effects - these affect less than 1 in 10 people who take this medicine | What can I do if I experience this |
| Diarrhoea | Drink plenty of water to replace lost fluids. If the diarrhoea continues or is severe, see your doctor or pharmacist for advice |
| Feeling or being sick, stomach ache, wind, and indigestion | Eat little and often and stick to simple or bland foods |
| Blurred vision, fainting, dizziness | If this happens, do not drive or use tools or machines. Taking your tablets at bedtime may help |
| Headache | Ask your pharmacist to recommend a suitable painkiller. If the headache continues, speak with your doctor |
| Changes in the way things taste | This will disappear after you finish your treatment |
If you experience any other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist.
How to store telithromycin
- Keep out of reach and sight of children.
- Store in a cool, dry place, away from direct light and heat.
Important information about all medicines
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References
- Manufacturer's PIL, Ketek® 400mg tablets, sanofi-aventis, electronic Medicines Compendium. Dated May 2007.
- British National Formulary; 61st Edition (March 2011) British Medical Association and Royal Pharmaceutical Society of Great Britain, London (link to current BNF)