Exenatida para la diabetes

About exenatide

Insulin is a hormone which is made naturally in your body, in the pancreas. It helps to control the levels of sugar (glucose) in your blood. If your body does not make enough insulin, or if it does not use the insulin it makes effectively, this results in the condition called diabetes (diabetes mellitus).

People with diabetes need treatment to control the amount of sugar in their blood. This is because good control of blood sugar levels reduces the risk of complications later on. Some people can control the sugar in their blood by making changes to the food they eat but, for other people, medicines are given alongside the changes in diet. Exenatide is one of the medicines that are prescribed for people with diabetes tipo 2.

Exenatide works in three ways. It increases the amount of insulin produced by your body which then reduces the level of sugar in your blood. It also reduces the amount of a substance called glucagon being produced by your pancreas. Glucagon causes your liver to produce more sugar, so by reducing the amount of glucagon in your body, this also helps to reduce the levels of sugar in your blood. Exenatide also works on your stomach so that food passes more slowly through it. This means that the sugar from your meals takes longer to get into your blood.

Exenatide is given as an injection just under the surface of the skin. It is administered using a syringe and needle or by using an injection device called a pre-filled pen. It is used in addition to other antidiabetic medicines. There are two types of exenatide injection available. There is a standard-release injection (brand name Byetta®) which is given twice daily, and there is a prolonged-release injection (brand name Bydureon®) which is given once a week.

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 using exenatide it is important that your doctor knows:

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

• Si tienes un problema con tu estómago o sistema digestivo.

• Si alguna vez has tenido un páncreas inflamado (pancreatitis).

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

• Si está tomando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que esté disponible para comprar sin receta, así como medicamentos herbales y complementarios.

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

• Antes de comenzar el tratamiento, lea el prospecto impreso del fabricante que se encuentra dentro del paquete, así como cualquier información que le proporcione su médico o clínica de diabetes. El prospecto del fabricante le proporcionará una lista completa de los efectos secundarios que podría experimentar.

• Use exenatide exactly as your doctor tells you to. Your doctor or diabetes nurse will show you how to inject yourself. Exenatide should be injected into the skin on your upper arms, thigh, or tummy (abdomen). Try to choose a slightly different injection site for each of your injections as this will help to prevent skin problems and difficulties in injecting.

• If you are using Byetta®, you will be advised to inject two doses a day. You should have each injection within the 60-minute period before a main meal, and the two doses should be at least six hours apart. The best way to achieve this is to have your first injection during the hour before your first meal of the day, and the second injection during the hour before your evening meal.

• If you forget to use exenatide before a meal, do not inject it after you have eaten, but instead just wait until your next dose is due.

• If you are using Bydureon®, you will be advised to inject one dose a week, on the same day of each week. Each pre-filled pen provides a single dose. The injection can be given at any time of the day, and it can be given either before or after a meal. If you forget to use the injection on your usual day, use it as soon as you remember and keep to your normal weekly schedule. However, if your next scheduled dose is due within three days, miss out the forgotten dose and take your next dose when it is due.

• Es importante que mantengas tus citas regulares con el médico y la clínica. Esto es para que se pueda monitorear tu progreso. Necesitarás chequeos regulares con una clínica de ojos y una clínica de pies, así como con tu médico y la clínica de diabetes.

• Su médico puede recomendarle que se haga pruebas de azúcar (glucosa) en la sangre o en la orina regularmente para verificar que su diabetes esté controlada. Su médico o enfermera especializada en diabetes le mostrará cómo hacerlo.

• Si tu médico te ha dado consejos sobre cambios en tu dieta, dejar de fumar o hacer ejercicio regularmente, es importante que sigas los consejos que te han dado.

• Each time you collect a prescription, check that you have been given the brand and strength of exenatide that you are expecting. If anything looks different from what you have had before, ask your pharmacist to check the prescription for you.

• Make sure you know what it feels like if your blood sugar is low. This is known as hypoglycaemia, or a 'hypo'. Although exenatide is unlikely to cause low blood sugar, other medicines that you are taking for diabetes alongside it may. The first signs of hypoglycaemia are feeling shaky or anxious, sweating, looking pale, feeling hungry, having a feeling that your heart is pounding (palpitations), and feeling dizzy. If this happens, eat something containing sugar, such as dextrose tablets, jelly babies or a sugary drink (non-diet), and then follow this up with a snack such as a sandwich or a banana.

• Si eres conductor, debes tener especial cuidado, ya que tu capacidad de concentración puede verse afectada si tu diabetes no está bien controlada. Se te puede aconsejar que verifiques tus niveles de azúcar en sangre antes de viajar y que lleves un refrigerio contigo en viajes largos.

• No consuma alcohol, ya que puede afectar el control de su nivel de azúcar en la sangre. Consulte a su médico si necesita más consejos sobre esto.

• Si sientes una sed inusual, orinas con más frecuencia de lo normal o te sientes muy cansado, debes informar a tu médico. Estos son signos de que hay demasiado azúcar en tu sangre y es posible que tu tratamiento necesite ajustes.

• Consulte con su médico antes de comenzar cualquier nuevo ejercicio físico, ya que esto afectará sus niveles de azúcar en la sangre y es posible que necesite controlar sus niveles de sangre u orina con más regularidad.

• Si tienes programada una operación o tratamiento dental, debes informar a la persona que realizará el tratamiento que tienes diabetes y proporcionarle una lista de los medicamentos que estás tomando.

• Este medicamento no debe usarse durante el embarazo. Las mujeres y niñas en edad fértil deben usar anticonceptivos efectivos durante el tratamiento y durante dos meses después de suspenderlo.

• If you buy any medicines, always check with a pharmacist that they are suitable for you to take. Exenatide can interfere with the way some other medicines are absorbed. Because of this, some medicines should not be taken during the hour before exenatide is given, or during the four hours after it has been given.

• Treatment for diabetes is usually lifelong. Continue with exenatide unless you are told otherwise by your doctor.

Along with their useful effects, most medicines can cause unwanted side-effects although not everyone experiences them. The table below contains some of the most common ones associated with exenatide. 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 of the following continue or become troublesome.

Si experimenta cualquier otro síntoma que crea que puede deberse a las inyecciones, hable con su médico o farmacéutico para obtener más consejos.

• Mantenga todos los medicamentos fuera del alcance y la vista de los niños.

• Exenatide can be kept for four weeks at room temperature as long as this is below 25°C and it is kept away from direct heat and sunlight. It is, however, best to store unopened packs in a refrigerator. Do not freeze exenatide.

• Byetta® pens must be discarded 30 days after being first used.

• Bydureon® pens are for single use only and should be discarded after first use.