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Simvastatin

Zocor

Simvastatin belongs to a group of medicines known as statins. It regulates the amount of cholesterol and other lipids made by your body, and helps to reduce the risk of heart and blood vessel disease.

Take one dose each evening.

Follow carefully any lifestyle advice you have been given such as stopping smoking, avoiding drinking too much alcohol, eating a healthy diet and taking exercise. These also help to reduce the risk of heart and blood vessel disease.

Do not drink grapefruit juice.

Si desarrolla calambres o dolores inusuales en sus músculos, contacte a su médico para obtener asesoramiento lo antes posible.

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About simvastatin

Tipo de medicamento

Un medicamento regulador de lípidos comúnmente conocido como estatina

Usado para

Lowering cholesterol and other lipids in the blood; to reduce the risk of heart and blood vessel disease

También llamado

Zocor®; Combination brand: Inegy® (simvastatin with ezetimibe)

Disponible como

Tabletas y medicina líquida oral

Lipids, or fats, are made naturally in your body from the food you eat. They are easily stored in your body and serve as a source of energy. Colesterol and triglycerides are types of lipid. If the concentration of these lipids in your blood becomes too high, it leads to a condition called hiperlipidemia. If it is the concentration of cholesterol which has become too high, it is called hipercolesterolemia. Although a high blood concentration of lipids will not make you feel ill, it can cause a problem if it is left untreated.

People with high lipid levels can develop small fatty patches called ateroma. These patches develop when excess fat is deposited on to the walls of blood vessels. Over time, these patches can make a blood vessel narrower and this is called atherosclerosis (sometimes referred to as 'hardening of the arteries'). The narrowing reduces the blood flow through the artery and increases the risk of a number of heart and blood vessel diseases, such as ataque al corazón y accidente cerebrovascular.

Simvastatin belongs to a group of medicines known as statins (or HMG-CoA reductase inhibitors). It regulates the amount of cholesterol and other lipids made by your body. It does this by blocking the action of a certain enzyme (called HMG-CoA reductase) which your body needs to make the fats. This lowers your risk of heart and blood vessel disease. It can also reduce this risk, even if your cholesterol levels are normal, if you are at an increased risk of heart disease as a result of other healthcare problems (such as if you have diabetes mellitus).

Before taking simvastatin

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 simvastatin it is important that your doctor knows:

  • Si estás embarazada, intentando tener un bebé o amamantando.

  • Si tienes algún problema con el funcionamiento de tu hígado, o si alguna vez has tenido una enfermedad que haya afectado a tu hígado.

  • Si tienes una glándula tiroides hipoactiva.

  • Si tiene un problema con dolores musculares inexplicables, o si usted (o un pariente cercano) ha tenido alguna vez un trastorno muscular.

  • Si bebes grandes cantidades de alcohol con regularidad.

  • Si tienes algún problema con el funcionamiento de tus riñones.

  • Si alguna vez has tenido una reacción alérgica a un medicamento.

  • If you are taking any other medicines. This is particularly important because there are a number of medicines that should not be taken with simvastatin, and there are also some medicines that will affect the dose of simvastatin that your doctor prescribes for you. Please also make sure that your doctor knows of any medicines you are taking which are available to buy without a prescription, as well as herbal and complementary medicines.

How to take simvastatin

  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about simvastatin and will provide you with a full list of the side-effects which you may experience from taking it.

  • Take one dose of simvastatin each day, in the evening. There are several different strengths of tablet available (10 mg, 20 mg, 40 mg and 80 mg) - your doctor will tell you which strength of tablet is right for you. Swallow the tablet with a drink of water. If you have any difficulties swallowing, let your doctor know about this as a liquid medicine may be more suitable for you.

  • You can take simvastatin before or after food.

  • Do not drink grapefruit juice at any time while you are taking simvastatin. This is because a chemical in grapefruit juice increases the amount of simvastatin in your bloodstream. This makes side-effects more likely and increases the risk of them being more serious.

  • If you forget to take a dose, leave out the missed dose but make sure that you remember to take your next dose on the following evening. Do not take two doses together to make up for a forgotten dose.

Obteniendo el máximo de tu tratamiento

  • Try to keep your regular appointments with your doctor. This is so that your doctor can check on your progress. You will need to have some blood tests from time to time. These are to measure your lipid levels and also to check that your liver has not been affected by taking simvastatin.

  • Su médico le dará consejos sobre cómo llevar una dieta saludable, reducir la cantidad de alcohol que normalmente consume, disminuir la cantidad de sal en su dieta, dejar de fumar y hacer ejercicio regularmente. Seguir estos consejos también le ayudará a reducir su riesgo de desarrollar enfermedades del corazón y de los vasos sanguíneos.

  • Women taking simvastatin must avoid getting pregnant. Make sure you have discussed with your doctor which types of contraception are suitable for you and your partner.

  • Treatment with simvastatin is usually long-term unless you experience an adverse effect. You should continue to take it regularly.

Can simvastatin 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 side-effects associated with simvastatin, although these tend to occur only rarely and are usually mild in nature. You will find a full list in the manufacturer's information leaflet supplied with your medicine. Unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any of the following continue or become troublesome.

Simvastatin side-effects (these affect fewer than 1 in 1,000 people)


¿Qué puedo hacer si experimento esto?

Muscle cramp, pain or tenderness

Although this may not be anything to be concerned about, you should tell your doctor about this. This is because there is a rare but serious side-effect of simvastatin which is a severe form of muscle inflammation

Dolor de cabeza

Bebe mucha agua y pide a tu farmacéutico que te recomiende un analgésico adecuado. Si los dolores de cabeza continúan, informa a tu médico

Feeling sick (nausea), indigestion, wind (flatulence), stomach upset

Mantente en comidas simples - evita alimentos ricos o picantes

Feeling dizzy or tired, tingling feelings, itchy rash, hair thinning

Hable con su médico si alguno de estos se vuelve problemático

Importante: simvastatin has been associated with some more serious side-effects in a very few people. Although these occur only rarely, it is important that you tell your doctor straightaway if you experience any of the following symptoms:

  • Si desarrollas calambres o dolores musculares, especialmente si están en tus piernas y también te sientes mal o tienes fiebre (temperatura alta).

  • If you feel short of breath or develop an unexplained cough. This is because (in very rare cases) statin medicines like simvastatin can cause a disease called interstitial lung disease.

  • Si desarrolla alguna reacción alérgica, como hinchazón alrededor de la boca o la cara, o una erupción cutánea.

If you experience any other symptoms which you think may be due to simvastatin, speak with your doctor or pharmacist for further advice.

How to store simvastatin

  • 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.

  • The oral liquid medicine may be used for one month once the bottle has been opened. After this time, get a fresh supply.

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.

Si compras algún medicamento, consulta con un farmacéutico que sea seguro tomarlo junto con tus otros medicamentos.

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, donde se encargarán de desecharlos por ti.

Si tienes alguna pregunta sobre este medicamento, consulta a tu farmacéutico.

MHRA - Reporte de reacciones adversas

Informe los efectos secundarios sospechosos de medicamentos, vacunas, cigarrillos electrónicos, incidentes con dispositivos médicos, productos defectuosos o falsificados (falsos) a la Agencia Reguladora de Medicamentos y Productos Sanitarios para garantizar un uso seguro y efectivo.

Preguntas frecuentes

Why is grapefruit juice dangerous to drink with simvastatin?

Drinking grapefruit juice while taking simvastatin is not recommended because a chemical in the juice can increase the amount of simvastatin in your bloodstream. This heightened concentration makes you more susceptible to developing side-effects, and it can also increase the severity of those side-effects.

How long will I need to take simvastatin?

Treatment with simvastatin is typically long-term. You should continue to take it regularly unless you experience an adverse effect and your doctor advises you to stop.

What should I do if I forget a dose of simvastatin?

If you miss a dose of simvastatin, you should leave out that missed dose. Simply take your next scheduled dose on the following evening. Do not take two doses together to try and compensate for the forgotten dose.

What checks will my doctor perform while I am taking simvastatin?

Your doctor will schedule regular appointments to monitor your progress. You will need to have blood tests periodically. These tests are used to measure your lipid levels to see how well the medicine is working and also to check that your liver has not been negatively affected by taking simvastatin.

Can I stop taking simvastatin once my cholesterol levels are normal?

Treatment with simvastatin is usually long-term. Even if your cholesterol levels appear normal, the medication works to regulate lipids and reduce your risk of heart and blood vessel disease. You should not stop taking it without discussing it with your doctor, as stopping could increase your risk.

Are there any specific lifestyle changes I should make while on simvastatin?

Yes, your doctor will advise you on several important lifestyle changes. These include eating a healthy diet, reducing your alcohol intake, cutting down on salt, stopping smoking, and engaging in regular exercise. These steps are crucial as they also contribute significantly to reducing your risk of developing heart and blood vessel disease.

Lecturas adicionales y referencias

Historial del artículo

La información en esta página está escrita y revisada por pares por clínicos calificados.
  • Next review due: 21 Nov 2026
  • 22 Nov 2023 | Última versión

    Última actualización por

    Michael Stewart, MRPharmS

    Revisado por

    Sid Dajani

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