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Clomethiazole


  • These capsules can cause drowsiness and light-headedness which can continue into the next day.
  • Do not drink alcohol while you are being treated with clomethiazole.

About clomethiazole

Type of medicineHypnotic
Used forInsomnia
Restlessness and agitation
Alcohol withdrawal symptoms in alcohol-dependency (used only in hospitals)
Available asCapsules

In elderly people clomethiazole is used to treat severe insomnia (being unable to get to sleep), restlessness and agitation. It is also used in hospitals to relieve the symptoms of alcohol withdrawal in people with alcohol-dependency.

Before taking clomethiazole

Before taking clomethiazole make sure your doctor or pharmacist knows:

  • If you have heart, liver or kidney problems.
  • If you have breathing difficulties or shortness of breath.
  • If you have sleep apnoea syndrome which is where your breathing is interrupted when you are asleep.
  • If you have ever had a problem with drug dependence or misuse.
  • If you are taking other medicines, including those available to buy without a prescription, herbal or complementary medicines.
  • If you have ever had an allergic reaction to this or any other medicine.

How to take clomethiazole

  • Before beginning treatment, read the manufacturer's printed information leaflet.
  • Take clomethiazole exactly as you have been directed. Your doctor will tell you when to take the capsules and for how long.
  • Swallow the capsules whole with a drink of water. Do not chew them.
  • These capsules should only be taken for a short period of time. This is because your body can become dependent on clomethiazole which causes withdrawal problems when you then stop taking it.
  • If you forget to take a dose, take it as soon as you remember unless it is nearly time for your next dose in which case skip the missed dose. Do not take two doses at the same time to make up for a missed dose.

Getting the most from your treatment

  • Keep your regular appointments with your doctor so your progress can be checked.
  • Clomethiazole can cause drowsiness and light-headedness, which can continue into the next day. 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.
  • Do not drink alcohol during treatment with clomethiazole.
  • Before having any kind of surgery, including dental and emergency treatment, tell your doctor, dentist or surgeon you are taking clomethiazole.
  • If you buy any medicines, check with a pharmacist that they are safe to take alongside clomethiazole.

Can clomethiazole cause problems

Along with their useful effects, all 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 medicineWhat can I do if I experience this
HeadacheAsk your pharmacist to recommend a suitable painkiller. If the headache continues, talk to your doctor
A runny or blocked nose, sore eyesIf either of these become troublesome, let your doctor know

If you experience any other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist.

How to store clomethiazole

  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light.

Important information about all medicines


  • Keep all medicines out of the sight and reach of children.
  • Make sure that the person prescribing this medicine knows about any other medicines that you are taking. This includes medicines you buy and herbal and homeopathic medicines.
  • If you buy any medicines check with a pharmacist that they are safe to take with your other medicines.
  • Before taking this medicine tell your doctor if you have ever had an allergic reaction after taking any medicine.
  • Never take more than the prescribed dose. If you suspect that you or someone else has taken an overdose of this medicine go to the accident and emergency department of your local hospital at once. Take the container with you, even if it is empty.
  • If you are having any treatment like an operation or dental treatment tell the person carrying out the treatment which medicines you are taking.
  • Always read the printed information leaflet that comes with your medicine.
  • This medicine is for you. Never give it to other people even if their condition appears to be the same as yours.
  • Never keep out-of-date or unwanted medicines. Take them to your local pharmacy which will dispose of them for you.
  • If you have any questions about this medicine ask your pharmacist.

References

  • British National Formulary; 59th Edition (March 2010) British Medical Association and Royal Pharmaceutical Society of Great Britain, London.
Comprehensive patient resources are available at www.patient.co.uk


© EMIS 2011 - Author: Helen Allen - Reviewer: Dr Cathy Jackson - Document ID: 3820 - Version: 25 - Reviewed: 7 Jun 2010

For the planned review period see the Data Creation and Quality Control Process.
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