Cómo dejar de fumar
Revisado por pares por Dr Hayley Willacy, FRCGP Última actualización por Dr Toni Hazell, FRCGPÚltima actualización 19 de mayo de 2023
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En esta serie:FumarBeneficios de dejar de fumarFumar pasivo¿Son seguras las cigarrillos electrónicos?Terapia de reemplazo de nicotinaBupropión para dejar de fumar
About 2 in 3 smokers want to stop smoking. Some people can give up easily. Willpower and determination are the most important aspects when giving up smoking. However, nicotine is a drug of addiction and many people find giving up a struggle. Help is available.
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Stopping smoking improves your health and saves you money.
Set a quit date and tell others for support.
Be prepared for withdrawal symptoms like cravings and irritability, which usually ease within 2-4 weeks.
Avoid triggers like alcohol and consider changing your routine.
NHS Stop Smoking Clinics and various medicines can help you quit.
Help to stop smoking
GPs, practice nurses or pharmacists can provide information, encouragement and tips on stopping smoking. Also, throughout the UK there are specialist NHS 'Stop Smoking Clinics' which have good success in helping people to stop smoking. Your doctor may refer you to one if you are keen to stop smoking..
Below are some tips and brief information about medicines which may help you to quit smoking. For more detailed information, see the separate leaflets called Cigarrillos electrónicos, Nicotine Replacement Therapy (NRT), y Bupropion (Zyban).
Tips to quit smoking
Write a list of the reasons why you want to stop
Keep them with you. Refer to them when tempted to light up.
Set a quit date
On that date, stop completely. (Some people prefer the idea of cutting down gradually. However, research has shown that if you smoke fewer cigarettes than usual, you are likely to smoke more of each cigarette and nicotine levels remain nearly the same. Therefore, it is usually best to stop once and for all from a set date.)
Tell everyone that you are giving up smoking
Friends and family often give support and may help you. Smoking by others in the household makes giving up harder. If appropriate, try to get other household members who smoke, or friends who smoke, to stop smoking at the same time. A team effort may be easier than going it alone.
Be prepared for some withdrawal symptoms
When you stop smoking, you are likely to have symptoms which may include feeling sick (náuseas), dolores de cabeza, ansiedad, irritability, craving, and just feeling awful. These symptoms are caused by the lack of nicotine that your body has been used to. They tend to peak after 12-24 hours and then gradually ease over 2-4 weeks.
Anticipate a cough
It is normal for a smoker's cough to become worse when you stop smoking (as the airways 'come back to life'). Many people say that this makes them feel worse for a while after stopping smoking and makes them tempted to restart smoking. Resist this temptation! The cough usually gradually eases.
Be aware of triggers
In particular, drinking alcohol is often associated with failing in an attempt to stop smoking. You should consider not drinking much alcohol in the first few weeks after stopping smoking. Try changing your routine for the first few weeks.
For example, despite the UK ban on indoor smoking in pubs, outside the pub might still be a tempting place to drink alcohol and smoke. Also, if drinking tea and coffee are difficult times, try drinking mainly fruit juice and plenty of water instead.
Take one day at a time
Mark off each successful smoke-free day on a calendar. Look at it when you feel tempted to smoke, and tell yourself that you don't want to start all over again.
Be positive
You can tell people that you don't smoke. You will smell better. After a few weeks you should feel better, taste your food more and cough less. You will have more money. Perhaps put away the money which you would have spent on cigarettes, to spend on a holiday, physical activity or other treats.
Anticipate an increase in appetite
Some people worry about gaining weight when they give up smoking, as the appetite may improve. Anticipate an increase in appetite and try not to increase fatty or sugary foods as snacks. Try fruit or sugar-free gum instead.
Don't despair if you fail
Examine the reasons why you felt it was more difficult at that particular time. It will make you stronger next time. On average, people who eventually stop smoking have made three or four previous attempts.
Use stop smoking clinics
Stop Smoking Clinics are available on the NHS in the UK. They have good success in helping people to stop smoking. Your doctor may refer you to stop smoking services if you are keen to stop smoking but are finding it difficult to do so, and in many areas you can self-refer.
Get rid of smoking paraphernalia
Clear out all of your ashtrays, lighters, and cigarettes from your home, vehicle, and workplace so that these items won’t be able to trigger the desire to smoke later.
Use stop smoking aids
Various medicines can increase your chance of quitting. These include:
Terapia de reemplazo de nicotina (TRN) which comes as gums, nasal sprays, patches, tablets, lozenges and inhalers. You can buy NRT without a prescription. It greatly increases the chance that you will quit. Most people can use NRT, including adults and children aged over 12, although those aged under 18 should not use lozenges without getting medical advice. It can be used in women who are pregnant or breastfeeding, as using NRT is less bad for the baby than smoking.
Bupropión (Zyban®) is a medicine which almost doubles your chance of successfully quitting. It was originally an antidepressant.
Cigarrillos electrónicos are designed to look and feel like normal cigarettes. They have a heating element inside that vaporises a solution - this looks like smoke. It may also contain nicotine. They are substituted for normal cigarettes or cigars, but have risks of their own and should therefore only be used for a short period of time, while you give up cigarettes, rather than as a long-term replacement.
Selecciones del paciente para Fumar

Vida saludable
¿Son seguras las cigarrillos electrónicos?
Los cigarrillos electrónicos son dispositivos diseñados para crear la sensación de fumar y generalmente proporcionan una dosis de nicotina, sin involucrar el uso de tabaco.
por la Dra. Jacqueline Payne, FRCGP

Vida saludable
Fumar
Fumar cigarrillos es la principal causa individual de enfermedad y muerte prematura en el Reino Unido. En todo el mundo, el tabaco mata a 7 millones de personas cada año. Casi un millón de muertes se deben a que los no fumadores están expuestos al humo de segunda mano.
por la Dra. Hayley Willacy, FRCGP
Preguntas frecuentes
What is the best way to handle alcohol when trying to quit smoking?
Drinking alcohol is frequently associated with relapsing on smoking. You should think about significantly reducing your alcohol intake during the initial weeks after stopping smoking. Also, try to change your usual routines associated with alcohol consumption.
How can I maintain a positive outlook while quitting smoking?
Focus on the benefits of quitting: you can tell people you don't smoke, you will smell better, and after a few weeks, you should feel better, taste food more, and cough less. You will also save money; consider setting aside the money you would have spent on cigarettes for a holiday, physical activity, or other treats.
What should I do if I am worried about gaining weight after I stop smoking?
It's common for appetite to increase after quitting smoking. Anticipate this potential increase and try to avoid unhealthy snacks like fatty or sugary foods. Instead, opt for healthier alternatives such as fruit or sugar-free gum.
Lecturas adicionales y referencias
- Hughes JR, Stead LF, Hartmann-Boyce J, et al; Antidepresivos para dejar de fumar. Cochrane Database Syst Rev. 8 de enero de 2014;1:CD000031. doi: 10.1002/14651858.CD000031.pub4.
- Wu J, Sin DD; Mejora en los resultados de los pacientes con el cese del tabaquismo: ¿cuándo es demasiado tarde? Int J Chron Obstruct Pulmon Dis. 2011;6:259-67. doi: 10.2147/COPD.S10771. Epub 2011 May 2.
- Hackshaw A, Morris JK, Boniface S, et al; Bajo consumo de cigarrillos y riesgo de enfermedad coronaria y accidente cerebrovascular: metaanálisis de 141 estudios de cohorte en 55 informes de estudio. BMJ. 24 de enero de 2018;360:j5855.
- Reid RD, Pritchard G, Walker K, et al; Gestión del cese del tabaquismo. CMAJ. 6 de diciembre de 2016;188(17-18):E484-E492. doi: 10.1503/cmaj.151510. Publicado en línea el 3 de octubre de 2016.
- Champix: Sistema de Alertas Central del NHS; Agencia Reguladora de Medicamentos y Productos Sanitarios
- Tabaco: prevenir el consumo, promover el abandono y tratar la dependencia; Guía NICE (2021 - última actualización febrero 2025)
- Hartmann-Boyce J, McRobbie H, Butler AR, et al; Cigarrillos electrónicos para dejar de fumar. Cochrane Database Syst Rev. 2021 Sep 14;9:CD010216. doi: 10.1002/14651858.CD010216.pub6.
- Cese del tabaquismo; NICE CKS, abril 2023 (acceso solo en el Reino Unido)
- Nicotine vaping in England: 2022 evidence update main findings; Office for Health Improvement and Disparities 2022
Sobre el autorVer biografía completa

Dr Toni Hazell, FRCGP
MBBS, BSc, FRCGP, DFSRH, Dip GU med, DRCOG, DCH (London, UK, 2000)
La Dra. Toni Hazell se graduó de la Escuela de Medicina del Hospital St. Mary y realizó su VTS en el Hospital Northwick Park.
Acerca del revisorVer biografía completa

Dr Hayley Willacy, FRCGP
Médico General, Autor Médico
MBChB (1992), DRCOG, DFFP, MRCOG (Part 1) MRCGP (2007), DFSRH (2013), MSc - medical education (2020)
La Dra. Hayley Willacy fue una médica general del NHS que trabajaba en el noroeste de Inglaterra, quien se retiró de la práctica clínica en 2022 después de 30 años.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Artículo también disponible en Inglés, Alemán, Español, Francés, Italiano, Portugués, Hindi, Hebreo, Árabe, y Sueco.
Próxima revisión: 12 de mayo de 2028
19 de mayo de 2023 | Última versión

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