Tolcapona para la enfermedad de Parkinson
Tasmar
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 5 Feb 2025
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Tolcapone will be recommended for you by a specialist doctor who will continue to check on your progress.
The usual dose is one 100 mg tablet three times daily.
Tolcapone can cause liver problems. You should tell your doctor immediately if you lose your appetite, feel sick or have pain in your tummy (abdomen), develop dark-coloured urine or itchy skin, or feel generally tired or unwell.
De un vistazo
Tolcapone is a medicine for Parkinson's disease, taken as tablets.
It helps people whose Parkinson's symptoms get worse between doses of other medicines.
You take tolcapone with your existing medicine for Parkinson's disease, usually three times a day.
You will need regular blood tests to check your liver while taking tolcapone.
See your doctor if you have symptoms like unexplained sickness, yellow skin/eyes, or extreme tiredness.
About tolcapone
Tipo de medicamento | A dopaminergic medicine called a catechol-O-methyltransferase inhibitor |
Usado para | enfermedad de Parkinson |
También llamado | Tasmar® |
Disponible como | Comprimidos |
enfermedad de Parkinson affects the way your brain co-ordinates the movements of your muscles. A number of cells in a small part of your brain called the substantia nigra become damaged and die. These brain cells pass messages down nerves in the spinal cord by producing a substance called dopamine, and it is these messages which control the muscles of the body. As the cells in the brain 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.
You will already be taking a medicine called either co-beneldopa o co-careldopa. These contain levodopa which helps relieve the symptoms of Parkinson's disease. Levodopa is converted into dopamine and this increases the level of dopamine in your brain.
Tolcapone works by increasing the effectiveness of the levodopa you are taking in co-beneldopa or co-careldopa. It is prescribed for people who have had Parkinson's disease for a while and whose symptoms deteriorate between medicine doses. It may be recommended for you if other, similar medicines, are not suitable for you. It will be prescribed for you by a specialist doctor.
Before taking tolcapone
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 tolcapone it is important that your doctor knows:
Si estás embarazada o amamantando.
If you have a problem with the way your kidneys work, or a problem with the way your liver works.
If you have uncontrolled muscle movements called dyskinesia.
If you have been told you have a tumour on your adrenal gland, or if you have ever had a condition affecting your muscles, called rhabdomyolysis, or a reaction to an antipsychotic medicine, called neuroleptic malignant syndrome, or an extremely high body temperature called hyperthermia. These are all very rare conditions.
If you are taking or using any other medicines. It is especially important that your doctor knows if you have recently taken an antidepressant known as a monoamine-oxidase inhibitor (MAOI). You should also tell your doctor if you are taking any medicines which you have bought without a prescription, as well as herbal and complementary medicines.
Si alguna vez has tenido una reacción alérgica a un medicamento.
How to take tolcapone
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 tolcapone, and will also provide you with a full list of side-effects which you could experience from taking it.
Take the tablets exactly as your doctor tells you to. It is usual to take one tablet three times daily, although the dose may be increased in some people to two tablets three times daily. Take your first dose of each day at the same time as your first dose of co-careldopa/co-beneldopa, and then leave six hours before you take your next dose, and a further six hours before you take the third dose. Swallow the tablets whole, without breaking, chewing or crushing them. This is because the tablets are specially coated so that you do not taste the medicine which has a bitter taste.
You can take tolcapone either before or after meals.
When you first start taking tolcapone, your doctor may need to adjust the doses of your other medicines. This is to help reduce any side-effects caused by these tablets increasing the effectiveness of your usual dose of levodopa.
If you forget to take a tablet at the usual time, take it as soon as you remember. Try to take the correct number of doses each day and remember to leave six hours between each dose. Do not take two doses together to make up for a forgotten dose.
Obteniendo el máximo de tu tratamiento
It is important that you keep your regular appointments with your doctor and clinic. This is so your doctor can check on your progress. Tolcapone can sometimes cause liver problems, so you will need to have regular blood tests to make sure the tablets are not causing any problems to the way your liver works.
Tolcapone may cause your urine to become more yellow in colour. This is harmless and is nothing to worry about. If, however, your urine becomes dark in colour, and you also have other symptoms, please let your doctor know about this.
Stay as active as possible and exercise regularly as much as you are able. You may walk more slowly than before, but a daily walk is good exercise and may help to loosen up stiff muscles.
If you are a driver you should tell the DVLA and your insurance company if you have Parkinson's disease.
Keep taking the tablets until your doctor tells you otherwise. Stopping suddenly can cause problems and your doctor will want you to reduce your dose gradually if you need to stop treatment.
Sometimes people taking medicines for Parkinson's disease can feel very sleepy during the day. Some people have even fallen asleep suddenly without much warning of being tired. If this happens to you, do not drive and do not use tools or machines, and discuss it with your doctor at your next appointment.
Some people taking medicines for Parkinson's disease can experience 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.
Can tolcapone cause problems?
Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains the most common ones associated with tolcapone. You will find a full list in the manufacturer's information leaflet supplied with your medicine. The unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any continue or become troublesome.
Very common tolcapone side-effects (these affect more than 1 in 10 people) | ¿Qué puedo hacer si experimento esto? |
Feeling sick (nausea), lack of appetite | Mantente en alimentos simples - evita comidas ricas o picantes |
Diarrea | This can begin a couple of months after starting the tablets. Drink plenty of water and let your doctor know if this continues |
Feeling tired or sleepy | Discuss this with your doctor, especially if you find yourself falling asleep during the day without feeling tired beforehand |
Sensación de mareo | Getting up or moving more slowly should help. If you begin to feel dizzy, lie down so that you do not faint, then sit for a few moments before you stand |
Dolor de cabeza | Drink plenty of water and ask your doctor or pharmacist to recommend a suitable painkiller |
Uncontrolled or unusual body movements, feeling confused, seeing or hearing things that are not real, difficulty sleeping | Let your doctor know if you experience any of these |
Importante: a few people have developed problems with their liver whilst taking this medicine. Although your doctor will check for this, you should speak with your doctor as soon as possible if you have any unexplained sickness (nausea or vomiting), yellowing of skin or eyes (jaundice), loss of weight, or feel extremely tired.
If you experience other symptoms which you think may be due to the tablets, speak with your doctor or pharmacist for further advice.
How to store tolcapone
Mantenga todos los medicamentos fuera del alcance y la vista de los niños.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Información importante sobre todos los medicamentos
Información importante sobre todos los medicamentos
Nunca tome más de la dosis prescrita. Si sospecha que usted u otra persona podría haber tomado una sobredosis de este medicamento, acuda al departamento de accidentes y emergencias de su hospital local. Lleve el envase con usted, incluso si está vacío.
Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.
If you buy any medicines, check with a pharmacist that they are suitable to take with your prescribed medicines.
Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás tomando.
No guardes medicamentos caducados o no deseados. Llévalos a tu farmacia local, que se encargará de desecharlos por ti.
Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.
Informar efectos secundarios de un medicamento o vacuna
Si experimenta efectos secundarios, puede reportarlos en línea a través de Sitio web de Yellow Card.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
What happens if I accidentally miss a dose of tolcapone, and how should I adjust my subsequent doses?
If you forget to take a tablet at the usual time, you should take it as soon as you remember. It's important to try and take the correct number of doses each day, but you must remember to leave at least six hours between each dose. You should never take two doses together to make up for a forgotten one.
Why is it important to tell my doctor if I have conditions like a tumour on my adrenal gland or a history of neuroleptic malignant syndrome before starting tolcapone?
It's crucial for your doctor to know about these very rare conditions because certain existing health problems or past reactions can influence whether tolcapone is a suitable and safe treatment for you, or if extra precautions need to be taken. This information helps your doctor make an informed decision about your treatment.
Can tolcapone interact with over-the-counter medicines or herbal remedies?
Yes, it's important to tell your doctor about any medicines you have bought without a prescription, as well as any herbal or complementary medicines you are taking. Interactions can occur, so your doctor needs this information to ensure your treatment plan with tolcapone is safe and effective.
What should I do if I experience changes in my behaviour while taking tolcapone?
If you notice any unusual 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. These are considered impulsive types of behaviour that can occur with Parkinson's disease medicines, and your doctor needs to be aware to address them.
How will my doctor monitor me for liver problems while I'm taking tolcapone?
Because tolcapone can sometimes cause liver problems, your doctor will arrange for you to have regular blood tests. These tests are essential to monitor your liver function and ensure that the tablets are not causing any issues with how your liver works.
What should I do if my urine colour changes while taking tolcapone?
Tolcapone may harmlessly cause your urine to become more yellow in colour. However, if your urine becomes dark and you also experience other symptoms, you should let your doctor know about it. This distinction is important for monitoring your health.
Lecturas adicionales y referencias
- Manufacturer's PIL, Tasmar® 100 mg Tablets; Mylan Products Ltd, The electronic Medicines Compendium. Dated December 2021.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
Sobre el autorVer biografía completa

Michael Stewart, MRPharmS
Gerente de Revisión de Folletos de Medicamentos – Contratista, Farmacéutico
BPharm (Hons), MRPharmS
Michael es un farmacéutico comunitario que ejerce en Midlands y South Yorkshire con más de 20 años de experiencia asesorando sobre medicamentos y condiciones médicas. Tiene una sólida formación en capacitación en atención médica, habiendo producido e impartido cursos de formación para equipos de farmacia y personal de entornos de atención residencial, incluidas enfermeras. También ha contribuido a juntas asesoras de farmacia para la gestión de condiciones de baja gravedad en la comunidad.
Acerca del revisor

Sid Dajani
Sultan Dajani se graduó en la Escuela de Farmacia de Londres en 1994 y se convirtió en el miembro más joven elegido para el consejo de la Sociedad Real de Farmacia desde su fundación en 1842.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Artículo también disponible en Inglés, Alemán, Español, Francés, Italiano, Portugués, Hindi, Hebreo, Árabe, y Sueco.
Next review due: 5 Feb 2028
5 Feb 2025 | Última versión

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