Oxibato de sodio
Xyrem
Revisado por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 26 Jul 2022
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Take sodium oxybate two times each night.
Take your first dose as you go to bed and the second dose 2½-4 hours later.
Sodium oxybate will make you feel sleepy. If you still feel sleepy the next day, do not drive and do not use tools or machines.
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About sodium oxybate
Tipo de medicamento | Central nervous system depressant |
Utilizado para | Narcolepsy with cataplexy |
También llamado | Xyrem® |
Disponible como | Medicamento oral líquido |
Narcolepsy is a problem which affects your sleep. Disturbed night-time sleep makes you feel very tired and drowsy during the daytime, and you can also have times where you fall asleep during the day without any warning. Many people with narcolepsy also have cataplexy. Cataplexy is a condition in which you suddenly lose control over some of your muscles.
Sodium oxybate is used to treat narcolepsy when cataplexy is also a problem. It helps with excessive daytime sleepiness as well as helping the symptoms of cataplexy. It is sometimes used in combination with other medicines for narcolepsy.
Before taking sodium oxybate
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 sodium oxybate it is important that your doctor or pharmacist knows:
Si está embarazada, esperando un bebé o en período de lactancia.
Si padece epilepsia.
If you have any problems with your heart or your breathing, or if you have high blood pressure.
Si tiene problemas hepáticos o renales.
If you are on a 'low sodium' diet for medical reasons.
Si alguna vez has tenido una enfermedad depresiva.
Si padece porfiria, un raro trastorno sanguíneo hereditario.
If you have ever had a drug addiction problem.
Si está tomando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que pueda adquirirse sin receta, así como medicamentos a base de plantas y complementarios.
Si alguna vez ha tenido una reacción alérgica a un medicamento.
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How to take sodium oxybate
Before you start this treatment, read the manufacturer's printed information leaflet from inside your pack. The leaflet will give you more information about sodium oxybate and a full list of side-effects which you may experience from taking it.
Take sodium oxybate exactly as your doctor tells you to. When starting this treatment your doctor will give you a small dose and then gradually increase it. This is to make sure you have the dose that helps your condition and avoids any unwanted symptoms.
It is taken in two doses - the first dose taken as you go to bed, and the second dose 2½-4 hours later. You should prepare both doses before you retire to bed, and you may need to set an alarm to make sure you wake up to take the second dose.
Only use the special child-resistant dosing cups provided with Xyrem® for storing your diluted doses.
Sit upright whilst taking your doses. Take your second dose whilst still in bed and lie down again straightaway.
Food interferes with how much of this medicine is absorbed by your body, so it is important that you take sodium oxybate well after eating any food. Most doctors will recommend that it is taken at a set time each evening, at least 2-3 hours after your evening meal.
Mix each of your doses with water (see below).
If you forget to take the first dose, take it as soon as you remember and then take the second dose 2½-4 hours later. If you forget to take the second dose, do not take it when you remember but instead skip the dose completely and do not take any more until the following evening. Do not take two doses together to make up for a forgotten dose.
Instructions for using Xyrem® Oral Solution
Remove the bottle cap and the foil seal. Push the plastic adaptor into the top of the open bottle.
Inserte la jeringa en el adaptador.
Keeping the bottle upright, gently pull out the plunger of the syringe so that the solution fills the syringe to the mark which corresponds to your dose.
Remove the syringe from the bottle, and empty the liquid from the syringe into the dosing cup.
Repeat steps 2-4 to prepare your second dose.
Add 60 ml of water (about four tablespoons) to both dosing cups, and then close both of the cups with the locking caps provided.
Replace the cap on the bottle of Xyrem® Oral Solution, leaving the adapter in place. Wash the syringe with water.
Aproveche al máximo su tratamiento
Keep your regular appointments with your doctor. This is so your progress can be monitored.
Treatment with sodium oxybate is usually long-term. Continue to take the medicine unless you are advised otherwise. Stopping suddenly can cause problems and your doctor may want you to reduce your dose gradually if this is necessary.
Sodium oxybate will make you sleepy, so do not drive within six hours of taking a dose. You may also continue to feel sleepy during the following day, so do not drive and do not use tools or machines if this happens, as you may put yourself and others at risk.
You should not drink alcohol while you are on sodium oxybate.
If you buy any medicines, check with a pharmacist that they are suitable for you to take with sodium oxybate. Some strong painkillers should not be taken with this medicine.
If you are having an operation or dental treatment, tell the person carrying out the treatment that you are taking this medicine.
Sodium oxybate is known to cause dependence, particularly where more than the recommended doses are taken. If you are concerned about this, you should discuss it with your doctor.
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Can sodium oxybate cause problems?
Además de sus efectos útiles, la mayoría de los medicamentos pueden producir efectos secundarios no deseados, aunque no todas las personas los sufran. Estos suelen mejorar a medida que el organismo se adapta al nuevo medicamento, pero hable con su médico o farmacéutico si alguno de los siguientes efectos secundarios persiste o se vuelve molesto.
Very common sodium oxybate side-effects - these affect more than 1 in 10 people who take this medicine | ¿Qué puedo hacer si me ocurre esto? |
Sensación de mareo | Move around more slowly. Do not drive and do not use tools or machines until you feel better |
Sensación de malestar (náuseas) | Stick to simple meals, avoid rich or spicy food |
Dolor de cabeza | Bebe mucha agua y pide a un farmacéutico que te recomiende un analgésico adecuado. Si los dolores de cabeza persisten, informe a su médico. |
If you experience other symptoms which you think may be due to this medicine, speak with your doctor or pharmacist.
How to store sodium oxybate
Mantenga todos los medicamentos fuera del alcance y de la vista de los niños.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Once a bottle has been opened it will keep for 90 days; after this time, make sure you have a fresh supply.
Diluted liquid should only be kept for 24 hours.
Información importante sobre todos los medicamentos
Información importante sobre todos los medicamentos
No tome nunca más de la dosis prescrita. Si sospecha que usted u otra persona ha tomado una sobredosis de este medicamento, acuda inmediatamente al servicio de urgencias de su hospital. Llévese el envase, aunque esté vacío.
Este medicamento es para usted. Nunca se lo dé a otras personas aunque su enfermedad parezca ser la misma que la suya.
No guarde medicamentos caducados o que no desee. Llévelos a su farmacia local, que se encargará de eliminarlos por usted.
Si tiene cualquier duda sobre este medicamento pregunte a su farmacéutico.
Informar de los efectos secundarios de un medicamento o vacuna
Si experimenta efectos secundarios, puede notificarlos en línea a través del sitio web de la Tarjeta Amarilla.
Lecturas complementarias y referencias
- Manufacturer's PIL, Xyrem® 500 mg/ml oral solution; UCB Pharma Limited, The electronic Medicines Compendium. Dated February 2022.
- Medicamentos BNF completa 89ª edición; Asociación Médica Británica y Real Sociedad Farmacéutica de Gran Bretaña, Londres.
Historia del artículo
La información de esta página ha sido redactada y revisada por médicos cualificados.
Fecha de la próxima revisión: 24 de enero de 2027
26 Jul 2022 | Última versión

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