Clonazepam för epilepsi
Granskad av Sid DajaniSenast uppdaterad av Michael Stewart, MRPharmSSenast uppdaterad 27 Sept 2022
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Clonazepam is prescribed to treat epilepsy. It may cause you to feel sleepy, particularly when you first start taking it, and it is likely to affect your reactions. These effects can last into the following day.
Continue to take clonazepam regularly until your doctor tells you to stop. You must not stop taking it without speaking with your doctor first, as stopping suddenly will cause problems.
Do not drink alcohol whilst you are on clonazepam.
About clonazepam
Typ av medicin | Ett bensodiazepinbaserat antiepileptiskt läkemedel |
Används för | Epilepsi |
Tillgänglig som | Tabletter och flytande medicin för oral användning |
Clonazepam is used to treat epileptic disease and seizures. It can be taken by adults and by children.
If you have epilepsy, it means that you have had more than one unexplained fit, or seizure. A seizure is a short episode of symptoms caused by a burst of abnormal electrical activity in your brain. Different parts of the brain control different functions of your body, so the symptoms that occur during a seizure will depend on where the abnormal burst of electrical activity occurs. Symptoms that may occur during a seizure can affect your muscles, sensations, behaviour, emotions, and consciousness, or a combination of these. The seizures can be prevented in most people by suitable anti-epileptic medication.
Clonazepam controls the symptoms of seizures by stabilising the electrical activity of your brain, which prevents the seizures from occurring. It also relaxes muscles that stiffen, or contract, during a seizure. This means that the numbers of seizures are reduced, and those that do occur, are less severe.
Before taking clonazepam
Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. For these reasons, before you start taking clonazepam it is important that your doctor knows:
Om du är gravid, försöker bli gravid eller ammar.
Om du har några andningsproblem.
Om du har några problem med hur din lever fungerar, eller om du har några problem med hur dina njurar fungerar.
Om du har psykiska besvär. Det omfattar tillstånd som psykos, depression, tvångssyndrom, fobier och personlighetsstörningar.
Om du någonsin har haft ett drog- eller alkoholberoende.
If you have been told you have spinal or cerebellar ataxia. These are conditions where you have difficulty controlling your movements - you may become shaky and unsteady, and have slurred speech or rapid eye movements.
Om du har ett tillstånd som orsakar svår muskelsvaghet och kallas myasthenia gravis.
Om du har en sällsynt ärftlig blodsjukdom som kallas porfyri.
Om du någonsin har haft en allergisk reaktion mot en medicin.
Om du tar eller använder några andra läkemedel. Detta inkluderar alla läkemedel du tar som finns att köpa utan recept, samt växtbaserade och komplementära läkemedel.
How to take clonazepam
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about clonazepam, and will also provide you with a full list of the side-effects which you could experience from taking it.
Take clonazepam exactly as your doctor tells you to - the dose will be individualised to suit your needs. You will be advised to take a small dose when you first start taking it and then to increase your dose over a few weeks as your body becomes used to it. Your doctor or pharmacist will explain this to you, and directions will also be printed on the label of the pack to remind you about what the doctor said to you.
Clonazepam is usually taken as a once-daily dose at bedtime, although some doctors may recommend that you take it divided into three or four smaller doses a day until your body has adjusted to it. Try to take clonazepam at the same time(s) each day, as this will help you to remember to take your doses regularly.
You can take clonazepam either with or without food. Swallow the tablet(s) with a drink of water.
Clonazepam is available in two strengths of tablets and several strengths of liquid medicine. Your treatment could be affected by switching between different makes of the medicine. If this is the case for you, each time you collect a new supply, check the label to make sure it is the same as you have had before or ask your pharmacist to check it out for you.
If you forget to take a dose at your usual time, take it as soon as you remember. If you do not remember until the following day, leave out the forgotten dose from the previous day and take the dose that is due that day as normal. Do not take two doses together to make up for a missed dose.
Få ut det mesta av din behandling
Försök att hålla dina regelbundna möten med din läkare. Detta är så att din läkare kan följa upp din utveckling.
När du påbörjar en ny behandling mot epilepsi kan antalet eller typen av anfall förändras. Din läkare kommer att ge dig råd om detta.
Clonazepam can make you feel sleepy, especially when you first start treatment. Do not drink alcohol while you are on clonazepam as it will increase the likelihood that you experience this side-effect.
Under behandlingen av epilepsi finns det en liten risk för att du kan få humörförändringar, plågsamma tankar och självmordstankar. Om detta händer måste du omedelbart berätta det för din läkare.
People with epilepsy must stop driving at first. Your doctor will advise you about if and when it may be possible for you to start driving again. This will usually be after a year free of seizures. If you are permitted to drive, please be aware that clonazepam is likely to affect your reactions and ability to drive. It is an offence to drive while your reactions are impaired. Please also be aware that the effects of clonazepam can last into the following day. Even if your driving ability is not impaired, should you drive, you are advised to carry with you some evidence that the medicine has been prescribed for you - a repeat prescription form or a patient information leaflet from the pack is generally considered suitable.
Taking clonazepam over a period of time can make you become tolerant to it. If this happens, it will not be as effective for you as it once was. If you think this is happening to you, please discuss it with your doctor.
Taking benzodiazepines like clonazepam can lead to the development of dependence. This means that your body becomes dependent on the medicine. If you are concerned about this, you should discuss it with your doctor.
Many antiepileptic medicines can harm an unborn child. If you are a woman, make sure you have discussed with your doctor which types of contraception are suitable for you and your partner. If you want to have a family, discuss this with your doctor so that you can be given advice from a specialist innan you become pregnant.
Om du ska genomgå en operation eller någon tandbehandling, informera den som utför behandlingen om vilka mediciner du tar.
You need to take clonazepam regularly every day. Do not stop taking it until your doctor tells you to stop. Stopping treatment suddenly can cause problems and your doctor will want you to reduce your dose gradually when this becomes necessary.
Can clonazepam cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the more common ones associated with clonazepam. The best place to find a full list of the side-effects which can be associated with your medicine, is from the manufacturer's printed information leaflet supplied with the medicine. Alternatively, you can find an example of a manufacturer's information leaflet in the reference section below. Speak with your doctor or pharmacist if any of the following continue or become troublesome.
Common clonazepam side-effects | Vad kan jag göra om jag upplever detta? |
Känner dig sömnig, svag eller yr (detta kan fortsätta även nästa dag) | Kör inte och använd inte verktyg eller maskiner. Drick inte alkohol |
Feeling unsteady, poor co-ordination, unusual eye movements, poor concentration, feeling forgetful or confused | Om något av detta blir besvärligt, diskutera det med din läkare |
In young children, increased amounts of saliva may lead to coughing or choking | Informera din läkare om detta händer |
Om du upplever några andra symtom som du tror kan bero på medicinen, tala med din läkare eller apotekare för vidare råd.
How to store clonazepam
Förvara alla läkemedel utom räckhåll och synhåll för barn.
Förvara på en sval, torr plats, borta från direkt värme och ljus.
The oral liquid medicine usually lasts for one month after first opening, but always check the expiry date on the medicine you are supplied with. It is a good idea to write the date you opened the bottle on to the label.
Viktig information om alla läkemedel
Viktig information om alla läkemedel
Ta aldrig mer än den ordinerade dosen. Om du misstänker att du eller någon annan kan ha tagit en överdos av detta läkemedel ska du omedelbart uppsöka akutmottagningen på närmaste sjukhus. Ta med förpackningen, även om den är tom, så att läkaren vet vad som har tagits.
Denna medicin är för dig. Ge den aldrig till andra människor även om deras tillstånd verkar vara detsamma som ditt.
Om du köper några mediciner, kontrollera med en apotekare att de är säkra att ta tillsammans med dina andra mediciner.
Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.
Om du har några frågor om denna medicin, fråga din apotekare.
Rapportera biverkningar av ett läkemedel eller vaccin
Om du upplever biverkningar kan du rapportera dem online via Yellow Card webbplats.
Vanliga frågor
Can I drink alcohol while taking clonazepam?
No, you should not drink alcohol while taking clonazepam. Alcohol can increase the likelihood of experiencing side-effects, particularly feeling sleepy, which clonazepam can also cause, especially when you first start treatment.
What should I do if I forget to take a dose of clonazepam?
If you forget to take a dose at your usual time, take it as soon as you remember. However, if you do not remember until the following day, you should skip the forgotten dose from the previous day and take your next dose as normal. Do not take two doses at once to compensate for a missed dose.
How long does clonazepam oral liquid medicine last once opened?
Clonazepam oral liquid medicine typically lasts for one month after it has been opened. It is a good practice to write the date you opened the bottle on the label to help you keep track of its expiry.
Can clonazepam affect my ability to drive?
Yes, clonazepam is likely to affect your reactions and ability to drive. Even if you are permitted to drive (after being seizure-free for a year, as advised by your doctor), the effects of clonazepam can last into the following day. It is an offence to drive while your reactions are impaired.
What should I do if I become tolerant to clonazepam?
If you find that clonazepam is no longer as effective for you as it once was, this could indicate that you have developed a tolerance to the medicine. You should discuss this with your doctor, as they may need to adjust your treatment plan.
How do I ensure I receive the same type of clonazepam if I use different strengths?
Clonazepam is available in different tablet strengths and several strengths of liquid medicine, and switching between different manufacturers might affect your treatment. Each time you collect a new supply, check the label to ensure it's the same as you've had before, or ask your pharmacist to verify it for you.
Vidare läsning och referenser
- Manufacturer's PIL, Clonazepam Rosemont 0.5 mg/5 ml Oral Solution; Rosemont Pharmaceuticals Ltd, The electronic Medicines Compendium. Dated January 2020.
- Mediciner Komplett BNF 89:e Utgåvan; Brittiska Läkarföreningen och Kungliga Farmaceutiska Sällskapet i Storbritannien, London.
Om recensenten

Sid Dajani
Sultan Dajani tog examen vid London School of Pharmacy 1994 och blev den yngsta valda medlemmen i Royal Pharmaceutical Society-rådet sedan dess grundande 1842.
Artikelhistorik
Artikeln finns också på Engelska, Tyska, Spanska, Franska, Italienska, Portugisiska, Hindi, Hebreiska, Arabiska, och Svenska.
Nästa granskning förfaller: 25 mars 2027
27 Sept 2022 | Senaste versionen
27 Apr 2010 | Ursprungligen publicerad
Författad av:
Helen Allen, MPharm
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