Lormetazepam tablets
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 17 Apr 2025
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Lormetazepam will help you to sleep.
You will be prescribed a short course of treatment only.
The effects of lormetazepam can last into the following day; it can affect your reactions and your ability to drive. Do not drive and do not use tools or machines while affected.
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Lormetazepam is a benzodiazepine medicine used to treat insomnia in adults.
It is usually prescribed for short periods, typically 1-3 weeks.
Take lormetazepam just before you go to bed, exactly as your doctor tells you.
Do not drink alcohol while taking this medicine as it increases the risk of side-effects.
Lormetazepam can cause sleepiness, dizziness, or unsteadiness, which may affect driving.
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About lormetazepam
Tipo de medicamento | A benzodiazepine |
Usado para | Insomnia in adults |
Disponible como | Comprimidos |
Poor sleep (insomnio) is fairly common but does not usually last for long. If you have problems sleeping, it may mean that you have difficulty getting off to sleep, or you may wake up for long periods during the night, or you may wake up too early in the morning. 'Sleeping tablets' are considered a last resort, but are sometimes prescribed for a short period of time to help with a particularly bad spell of insomnia.
Lormetazepam works by affecting the way certain brain chemicals (neurotransmitters) transmit messages. This has a calming effect and helps you to sleep. It works well in the short term, but lormetazepam is not normally advised for more than 1-3 weeks. If you take it for longer, the medicine may lose its effect (you may become tolerant to the effect), and if you stop it you may develop withdrawal symptoms. You may need to keep taking the medicine to avoid the withdrawal symptoms. This is known as drug dependence.
In addition, you may become addicted to lormetazepam. Addiction is different from dependence. You have an overwhelming craving for a drug, so that you feel compelled to take it even though it is harming you physically or affecting your life and relationships.
Before taking lormetazepam
Volver al contenidoSome 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 lormetazepam it is important that your doctor knows:
Si estás embarazada o amamantando.
If you have any breathing problems.
Si tienes algún problema con el funcionamiento de tu hígado, o si tienes algún problema con el funcionamiento de tus riñones.
If you have a mental health problem. This includes conditions such as psychosis, depression, obsessive conditions, phobias and personality disorders.
If you have ever had a drug or alcohol addiction.
If you have a condition causing severe muscle weakness, called myasthenia gravis.
Si tienes un trastorno sanguíneo hereditario raro llamado porfiria.
Si alguna vez has tenido una reacción alérgica a un medicamento.
Si está tomando otros medicamentos. Esto incluye cualquier medicamento que se pueda comprar sin receta, así como medicamentos herbales y complementarios.
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How to take lormetazepam
Volver al contenidoBefore you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about lormetazepam, and will also provide you with a full list of the side-effects which you could experience from taking it.
Your doctor may recommend that you take one tablet each evening for a few days, or only on certain days of the week. Take lormetazepam exactly as your doctor tells you to. Take the tablet just before you go to bed.
Obteniendo el máximo de tu tratamiento
Volver al contenidoTry to keep any appointments with your doctor. This is so your doctor can check how you are feeling.
The effects of lormetazepam can last into the following day; please be aware that it is likely to affect your reactions and your ability to drive. It is an offence to drive while your reactions are impaired, so do not drive until you know how you react, especially when you first start treatment. Even if your driving ability is not impaired, should you drive, you are advised to carry with you some evidence that the medicine has been prescribed for you - a repeat prescription form or a patient information leaflet from the pack is generally considered suitable.
Do not drink alcohol while you are on lormetazepam. It will increase the risk of sedative side-effects.
If you are due to have an operation or any dental treatment, please tell the person carrying out the treatment that you are taking a benzodiazepine. This is because lormetazepam increases the effects of some anaesthetics.
Your doctor is likely to recommend that you reduce your dose gradually when it is time to stop taking it. This is to reduce the risk of you experiencing withdrawal effects. Follow carefully any instructions your doctor gives to you.
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Can lormetazepam cause problems?
Volver al contenidoAlong 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 lormetazepam. 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.
Common lormetazepam side-effects | ¿Qué puedo hacer si experimento esto? |
Feeling sleepy, dizzy or light-headed during the day | Do not drive and do not use tools or machines. Do not drink alcohol |
Feeling unsteady or weak | Si es problemático, hable con su médico |
Importante: because of side-effects such as dizziness, muscle weakness and feeling sleepy or tired, taking this medicine may make you more likely to have a fall or an accident. Please take care, especially when getting up during the night or using stairs. Take extra care if you are frail, elderly or have any other risk factors for falls.
Si experimenta cualquier otro síntoma que crea que puede deberse a las tabletas, hable con su médico o farmacéutico para obtener más consejos.
How to store lormetazepam
Volver al contenidoMantenga 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
Volver al contenidoInformación importante sobre todos los medicamentos
Si compras algún medicamento, consulta con un farmacéutico que sea seguro tomarlo junto con tus otros medicamentos.
Never take more than the prescribed dose. If you suspect that you or someone else might have taken an overdose of this medicine go to the accident and emergency department of your local hospital at once. Take the container with you, even if it is empty.
Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás tomando.
Este medicamento es para ti. Nunca lo des a otras personas, incluso si su condición parece ser la misma que la tuya.
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.

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Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
What is the typical duration for taking lormetazepam?
Lormetazepam is usually prescribed for a short duration, typically no more than 1-3 weeks. Taking it for longer periods can lead to it losing its effectiveness or causing withdrawal symptoms when stopped.
I'm pregnant, is it safe for me to take lormetazepam?
If you are pregnant or breastfeeding, it is important to inform your doctor. They will need to consider this before prescribing lormetazepam.
Can I drive while taking lormetazepam?
The medicine can make you feel sleepy, dizzy, or light-headed, and can affect your reactions into the next day. It is an offence to drive if your reactions are impaired. You should not drive until you understand how the medication affects you, especially when you first start treatment. If you do drive and your ability is not impaired, it's advisable to carry proof of prescription with you.
Should I avoid alcohol while taking this medication?
Yes, you should not drink alcohol when taking lormetazepam. Alcohol can increase the risk of sedative side-effects, making them more pronounced.
What should I do if I forget to take my lormetazepam tablet?
The article does not specify what to do if a dose is missed. It only advises to take the tablet just before bed and to take it exactly as your doctor tells you to.
How will I stop taking lormetazepam when my treatment is finished?
When it's time to stop taking lormetazepam, your doctor will likely recommend gradually reducing your dose. This approach helps to lower the risk of experiencing withdrawal effects.
Are there any specific risks of falls associated with lormetazepam?
Yes, lormetazepam can cause side-effects like dizziness, muscle weakness, and feeling sleepy or tired. These can increase your risk of falls or accidents. You should be especially careful when getting up at night or using stairs, particularly if you are frail, elderly, or have other risk factors for falls.
Lecturas adicionales y referencias
- Manufacturer's PIL, Lormetazepam 0.5 mg and 1 mg tablets; Genus Pharmaceuticals, The electronic Medicines Compendium. Dated July 2020.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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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.
Next review due: 17 Apr 2028
17 Apr 2025 | Última versión

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