Co-careldopa pour la maladie de Parkinson
Sinemet
Revu par Sid DajaniDernière mise à jour par Michael Stewart, MRPharmSDernière mise à jour 27 nov. 2023
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Co-careldopa is a medicine which has been prescribed for many years for people with Parkinson's disease. Most people notice a good improvement in symptoms within a few weeks of starting it.
Side-effects can occur. Although these tend to be mild at first, they can become problematic after long periods of treatment. Your doctor will discuss these with you before you start treatment.
En un coup d'œil
Co-careldopa is a medicine for treating Parkinson's disease symptoms.
It contains levodopa and carbidopa, which help restore dopamine levels in the brain.
Take co-careldopa exactly as your doctor tells you, usually several times a day.
Do not stop taking co-careldopa suddenly, as this can cause serious problems.
If you fall asleep suddenly, experience behaviour changes, or have unusual jerky movements, tell your doctor.
Co-careldopa can make urine a dark reddish colour, which is harmless.
About co-careldopa
Type de médicament | A dopaminergic medicine |
Utilisé pour | la maladie de Parkinson |
Aussi appelé | Caramet®; Duodopa®; Lecado®; Sinemet® and Half Sinemet®; |
Disponible sous forme de | Tablets, prolonged-release tablets, and gel for use with a feeding tube |
You will have been prescribed co-careldopa to relieve symptoms of la maladie de Parkinson. In Parkinson's disease, a number of cells in a small part of the brain called the substantia nigra become damaged and die. These brain cells pass messages down nerves in the spinal cord by producing a chemical called dopamine, and it is these messages which control the muscles of the body. As the cells in the substantia nigra are damaged, the amount of dopamine that is produced is reduced. A combination of the reduction of cells and a low level of dopamine in the cells in this part of the brain, causes nerve messages to the muscles to become slowed and abnormal. This produces the main symptoms of Parkinson's disease, which are stiffness, shaking (tremor), and slowness of movement.
Co-careldopa contains two ingredients, levodopa and carbidopa. Once in the body, levodopa is converted into dopamine which helps to restore the level of dopamine in the damaged area of the brain. The carbidopa ingredient helps to prevent the levodopa from being broken down into dopamine in parts of the body other than the brain. This means more levodopa gets into the brain to be converted into dopamine, and it also helps to reduce side-effects.
Before taking co-careldopa
Some medicines are not suitable for people with certain conditions, and sometimes a medicine may only be used if extra care is taken. For these reasons, before you start taking co-careldopa it is important that your doctor knows:
If you have lung disease or a problem with your breathing.
Si vous avez déjà eu un ulcère à l'estomac.
Si vous avez des problèmes cardiaques ou vasculaires.
If you have a problem with raised pressure in your eye (glaucoma).
Si vous avez déjà eu une crise (convulsion).
Si vous avez des problèmes avec le fonctionnement de votre foie, ou avec le fonctionnement de vos reins.
If you have a mental health problem.
If you have ever had skin cancer.
If you know you have any of the following: an overactive thyroid gland, Cushing's syndrome, diabetes, weakened bones (osteomalacia), or a growth on your adrenal glands, called phaeochromocytoma.
Si vous êtes enceinte ou si vous allaitez.
Si vous prenez d'autres médicaments. Cela inclut tous les médicaments que vous prenez et qui sont disponibles à l'achat sans ordonnance, ainsi que les médicaments à base de plantes et les médecines complémentaires.
Si vous avez déjà eu une réaction allergique à un médicament.
How to take co-careldopa
Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack and any additional information your doctor has given to you. These will give you more information about co-careldopa and will provide you with a full list of the side-effects which you may experience from taking it.
Take co-careldopa exactly as your doctor tells you to. It is usual to take a dose several times each day. Your doctor will prescribe a dose that best suits you and will tell you how much to take and when to take it. You will be started on a low dose at first, but your dose over time will most likely need to be increased to control your symptoms.
Try to take co-careldopa at the same times of day each day, as this will help you remember to take it regularly. If you do miss a dose then take your next dose when it is due but leave out the missed dose. Do not take two doses together to make up for a forgotten dose.
You can take the tablets either before or after a meal, although it is best not to take doses straight after large meals.
Prolonged-release brands of co-careldopa (such as Caramet® CR, Half Sinemet® CR, and Sinemet® CR) and the combination brand called Stalevo®, are all formulated in a special way. These tablets should be swallowed whole - do not break or chew them.
If you are using Duodopa® gel, your nurse will tell you how to use the cassette with a portable pump so that you receive the correct amount of medicine.
Tirer le meilleur parti de votre traitement
Try to keep your regular appointments with your doctor. This is so your doctor can check on your progress. During the first few weeks of treatment in particular, your dose may require adjusting.
Make sure you know exactly when to take your medication. Dose schedules and timings are important. Your pharmacist will be able to advise and help if you have difficulty in getting tablets out of blister packs, or if you have difficulty in remembering when to take your doses.
Co-careldopa tablets are available in several different strengths. Each time you collect a fresh supply, it's a good idea to check the strength on the pack to make sure they are what you are expecting. If you are unsure, ask your pharmacist for advice.
Co-careldopa can make your urine look a dark reddish colour. This is harmless and is nothing to worry about. It is caused by your body getting rid of the medicine.
If you take any medicines that you have bought without a prescription, check with a pharmacist that they are suitable to take with co-careldopa. This is because some medicines, such as iron and some vitamins, may interfere with it.
Sometimes people taking co-careldopa can fall asleep suddenly with little or no warning of being tired beforehand. Until you know how you react, take extra care if you drive, or if you operate machinery. If you do find yourself falling asleep suddenly, you should see your doctor as soon as possible for advice, and avoid driving a vehicle or using tools and machines in the meantime.
Restez aussi actif que possible et faites de l'exercice régulièrement autant que vous le pouvez. Vous pouvez marcher plus lentement qu'avant, mais une marche quotidienne est un bon exercice et peut aider à assouplir les muscles raides.
If you are a driver you should tell the DVLA and your insurance company that you have Parkinson's disease. Depending on the severity of symptoms and the medicines that you are taking, you may still be allowed to drive following a medical assessment.
Treatment with medicines containing levodopa can sometimes cause problems with impulsive types of behaviour. If you notice any changes in your behaviour, such as an increased desire to gamble, binge eat, or spend excessively, or an increased sex drive, you must let your doctor know as soon as possible.
If you are due to have an operation or dental treatment, tell the person carrying out the treatment that you are taking co-careldopa because there could be an increased risk of problems with some anaesthetics. Also, if you need to have any blood or urine tests, you must say that you are taking co-careldopa, because it can affect the result of some tests.
There is a small increased risk of skin problems developing in people with Parkinson's disease, although the cause of this is unclear. It is a good idea to check your skin from time to time for any unusual patches, and to speak with your doctor if you are concerned.
Continue to take co-careldopa regularly. Stopping treatment suddenly can cause serious problems. Your doctor will probably want you to reduce your dose gradually if this becomes necessary.
Can co-careldopa cause problems?
The table below contains some of the common side-effects associated with co-careldopa. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Side-effects can sometimes occur when you first start taking medicines which contain levodopa, although most people have no problems with low doses. Unfortunately, most people taking levodopa over time (typically after several years) develop problems. These include muscle problems which can cause uncontrollable jerky movements, and 'on-off' effects (see below).
Co-careldopa side-effects | Que puis-je faire si je ressens cela ? |
Loss of appetite, feeling sick (nausea) or being sick (vomiting), diarrhoea, changes in how things taste | These may occur when you first start co-careldopa. Taking your doses after a light meal may help. If it continues, let your doctor know so that your dose can be adjusted more slowly |
Feeling dizzy when you stand up | Getting up more slowly should help. If this continues, let your doctor know, as your dose may need adjusting |
Se sentir somnolent ou fatigué | If this happens, do not drive and do not use tools or machines. If you find yourself falling asleep suddenly without any warning of tiredness, let your doctor know |
Symptoms of a 'water' infection (urinary tract infection UTI) including a burning sensation when passing water, increased frequency and urgency to pass water | Drink plenty of water and make an appointment to see your doctor |
Changes in the way you feel, such as being anxious, excited, depressed or agitated; or thinking or believing things that are not true | Let your doctor know about any of these |
Difficulties sleeping, dry mouth, being aware of your heartbeat | Si l'un de ces éléments devient problématique, discutez-en avec votre médecin |
Uncontrollable jerky movements, 'on-off' effects (this is where you switch suddenly from being able to move to being immobile) | These can happen after taking co-careldopa long-term. You should let your doctor know about these as soon as possible |
If you experience any other symptoms which you think may be due to co-careldopa, speak with your doctor or pharmacist for further advice.
How to store co-careldopa
Gardez tous les médicaments hors de la portée et de la vue des enfants.
Conserver dans un endroit frais et sec, à l'abri de la chaleur et de la lumière directes.
If you are using Duodopa® gel, store the cassettes containing the gel in a refrigerator until they are required.
Informations importantes sur tous les médicaments
Informations importantes sur tous les médicaments
Ne prenez jamais plus que la dose prescrite. Si vous soupçonnez que vous ou quelqu'un d'autre avez pris une surdose de ce médicament, rendez-vous au service des urgences de votre hôpital local. Emportez le contenant avec vous, même s'il est vide.
Ce médicament est pour vous. Ne le donnez jamais à d'autres personnes, même si leur état semble être le même que le vôtre.
Ne gardez pas de médicaments périmés ou indésirables. Apportez-les à votre pharmacie locale qui s'en débarrassera pour vous.
Si vous avez des questions concernant ce médicament, demandez à votre pharmacien.
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Signalez les effets secondaires suspectés des médicaments, vaccins, cigarettes électroniques, incidents liés aux dispositifs médicaux, produits défectueux ou falsifiés (contrefaits) à l'Agence de Régulation des Médicaments et Produits de Santé pour garantir une utilisation sûre et efficace.

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Vérifiez les interactions possibles entre les médicaments, les compléments et les aliments avant de les prendre ensemble.
Questions fréquemment posées
What is the difference between co-careldopa and Sinemet?
Sinemet is one of the brand names for the medication co-careldopa. Co-careldopa is also available under other brand names like Caramet®, Duodopa®, and Lecado®.
Why does my doctor start me on a low dose of co-careldopa?
Doctors typically start patients on a low dose of co-careldopa because the dose will likely need to be increased over time to effectively control your symptoms. Starting low allows for gradual adjustment as your body adapts to the medication and helps to reduce early side-effects.
Can I take other medications, including over-the-counter ones, with co-careldopa?
It is important to tell your doctor about all other medicines you are taking, including those bought without a prescription, as well as herbal and complementary medicines. Some medicines, like iron and certain vitamins, may interfere with co-careldopa, so always check with a pharmacist to ensure they are suitable to take together.
Why does co-careldopa make my urine a dark reddish colour?
Co-careldopa can make your urine look a dark reddish colour. This is a harmless side effect and nothing to worry about. It happens as your body processes and eliminates the medicine.
What should I do if I notice changes in my behaviour while taking co-careldopa?
Treatment with medicines containing levodopa, such as co-careldopa, can sometimes cause problems with impulsive types of behaviour. If you notice any changes in your behaviour, such as an increased desire to gamble, binge eat, spend excessively, or an increased sex drive, you must inform your doctor as soon as possible.
Lectures complémentaires et références
- Manufacturer's PIL, Sinemet® 10 mg/100 mg, 25 mg/100 mg and 25 mg/250 mg Tablets; Organon Pharma (UK) Limited, The electronic Medicines Compendium. Dated August 2023.
- Manufacturer's PIL, Sinemet® CR and Half Sinemet® CR; Organon Pharma (UK) Limited, The electronic Medicines Compendium. Dated August 2023.
- Médicaments Complets BNF 89e Édition; Association Médicale Britannique et Société Royale Pharmaceutique de Grande-Bretagne, Londres.
À propos de l'auteurVoir la biographie complète

Michael Stewart, MRPharmS
Responsable de l'examen des notices de médicaments – Contractuel, Pharmacien
BPharm (Hons), MRPharmS
Michael est un pharmacien communautaire exerçant dans les Midlands et le South Yorkshire avec plus de 20 ans d'expérience dans le conseil sur les médicaments et les conditions médicales. Il possède une solide expérience en formation dans le domaine de la santé, ayant produit et dispensé des cours de formation pour les équipes de pharmacie et le personnel des établissements de soins résidentiels, y compris les infirmières. Il a également contribué aux comités consultatifs de pharmacie pour la gestion des affections de faible gravité dans la communauté.
À propos du critique

Sid Dajani
Sultan Dajani a obtenu son diplôme à la London School of Pharmacy en 1994 et est devenu le plus jeune membre élu du conseil de la Royal Pharmaceutical Society depuis sa fondation en 1842.
Historique de l'article
Les informations sur cette page sont rédigées et examinées par des cliniciens qualifiés.
Article également disponible en Anglais, Allemand, Espagnol, Français, Italien, Portugais, Hindi, Hébreu, Arabe, and Suédois.
Next review due: 26 Nov 2026
27 nov. 2023 | Dernière version

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