Nitrazepam for sleeping problems
Mogadon
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSLast updated 19 Dic 2022
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Nitrazepam will help you to sleep. You will be prescribed a short course of treatment only.
Take your dose just before you go to bed.
The effects of nitrazepam can last into the following day; it is likely to impair your reactions and your ability to drive. Do not drive and do not use tools or machines while affected.
At a glance
Nitrazepam is a benzodiazepine medicine used for short-term treatment of sleeping problems (insomnia).
It works by calming the brain, helping you to sleep.
Treatment typically lasts one to three weeks to avoid dependence and withdrawal symptoms.
Always take nitrazepam exactly as your doctor tells you to.
Do not drive or drink alcohol while taking nitrazepam, as it can cause drowsiness.
Tell your doctor if you have breathing problems, liver or kidney problems, or mental health issues.
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About nitrazepam
Tipo de medicamento | A benzodiazepine |
Usado para | Sleeping problems (insomnia) in adults |
También llamado | Mogadon® |
Disponible como | Tabletas y medicina líquida oral |
Poor sleep (insomnia) 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' like nitrazepam are considered a last resort, but are sometimes prescribed for a short period of time to help with a particularly bad spell of insomnia.
Nitrazepam works by affecting the way certain brain chemicals (neurotransmitters) transmit messages. This has a calming effect which helps you to sleep. It works well in the short term, with one week's treatment normally being sufficient, although up to three weeks of treatment are sometimes required. If you take it for longer, the medicine can lose its effect (you may become tolerant to the effect) and when 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 nitrazepam. 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 nitrazepam
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 nitrazepam 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, 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 nitrazepam
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 nitrazepam, and it will also provide you with a full list of the side-effects which you could experience from taking it.
The usual dose is 5 mg taken just before going to bed; your dose, however, could be more or less than this. Your doctor may recommend that you take a dose for just a few days, or only on certain days of the week. It is important that you take nitrazepam exactly as your doctor tells you to.
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 nitrazepam can last into the following day; please be aware that it is likely to impair your judgement and reactions, and so affect 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 nitrazepam. 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 nitrazepam increases the effects of some anaesthetics.
Your doctor may 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 nitrazepam 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 more common ones associated with nitrazepam. The best place to find a full list of the side-effects which can be associated with your medicine, is from the manufacturer's printed information leaflet supplied with the medicine. Alternatively, you can find an example of a manufacturer's information leaflet in the reference section below. Speak with your doctor or pharmacist if any of the following continue or become troublesome.
Común nitrazepam side-effects (these affect fewer than 1 in 10 people) | ¿Qué puedo hacer si experimento esto? |
Feeling sleepy or light-headed during the day | Do not drive and do not use tools or machines. Do not drink alcohol |
Feeling unsteady, weak, forgetful, confused, or aggressive | If any become troublesome, speak with your doctor |
Si experimenta otros síntomas que cree que pueden deberse al medicamento, hable con su médico o farmacéutico para obtener más consejos.
How to store nitrazepam
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.
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.
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 Yellow Card website.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
What type of sleeping problems is nitrazepam prescribed for?
Nitrazepam is used for short-term sleeping problems (insomnia) in adults. Insomnia can mean difficulty falling asleep, waking up for long periods during the night, or waking up too early in the morning.
How long should I expect to take nitrazepam?
Nitrazepam is typically prescribed for short-term use, usually for one week, though sometimes up to three weeks. Taking it for longer periods can lead to the medicine losing its effectiveness and potentially causing withdrawal symptoms or dependence.
What should I do if I forget to take my dose of nitrazepam?
The article does not specifically mention what to do if a dose is missed. However, it states that you should take nitrazepam exactly as your doctor tells you to. If you are concerned about a missed dose, it's best to follow your doctor's instructions or consult with them.
Can I stop taking nitrazepam suddenly once I feel better?
No, your doctor may recommend reducing your dose gradually when it's time to stop taking nitrazepam. This is to help reduce the risk of experiencing withdrawal effects.
What should I be aware of the morning after taking nitrazepam?
The effects of nitrazepam can last into the following day, potentially impairing your judgement and reactions. You should not drive or operate machinery until you know how the medicine affects you, especially when you first start treatment. If you do drive, it's advisable to carry proof of your prescription.
Is it safe to take nitrazepam with other medications?
Some medicines are not suitable to take with nitrazepam. You should tell your doctor about all other medicines you are taking, including those bought without a prescription, as well as herbal and complementary medicines. Also, if you buy any new medicines, check with a pharmacist to ensure they are safe to take with nitrazepam.
What are the differences between drug dependence and addiction with nitrazepam?
Dependence means you may need to keep taking the medicine to avoid withdrawal symptoms. Addiction is different; it involves an overwhelming craving for the drug, compelling you to take it even if it's causing harm physically or affecting your life and relationships.
Lecturas adicionales y referencias
- Manufacturer's PIL, Nitrazepam Tablets 5 mg, Accord-UK Ltd, The electronic Medicines Compendium. Dated February 2020.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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About the authorView full bio

Michael Stewart, MRPharmS
Medicine Leaflet Review Manager – Contractor, Pharmacist
BPharm (Hons), MRPharmS
Michael is a community pharmacist practicing in the Midlands and South Yorkshire with more than 20 years’ experience advising on medicines and medical conditions. He has a strong background in healthcare training, having produced and delivered training courses for pharmacy teams and staff of residential care settings, including nurses. He has also contributed to pharmacy advisory boards for the management of low acuity conditions in the community.
About the reviewer

Sid Dajani
Sultan Dajani qualified at the London School of Pharmacy in 1994 and became the youngest elected member of the Royal Pharmaceutical Society council since its founding in 1842.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Próxima revisión: 18 Jun 2027
19 Dic 2022 | Última versión

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