Hydroxyzine tablets
Revisado por pares por Dr Colin Tidy, MRCGPÚltima actualización por Michael Stewart, MRPharmSLast updated 27 Abr 2023
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Hydroxyzine is an antihistamine. It is taken to relieve itching.
The most common side effect is drowsiness. This may affect your ability to drive.
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Resumen
Tipo de medicamento | Un antihistamínico |
Usado para | Itching, urticaria |
Disponible como | Comprimidos |
What is hydroxyzine used for?
Volver al contenidoHydroxyzine belongs to a group of medicines known as sedating los antihistamínicos. It is used to relieve itching caused by some skin conditions, such as nettle rash (urticaria).
How does hydroxyzine work?
Exposure to substances such as pollen, pet fur, house dust or insect bites can cause some people to produce an excess of a chemical called histamine.
This release of histamine can then cause a skin rash and/or itchiness. Because hydroxyzine blocks the effects of histamine, it helps relieve symptoms like these.
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Side effects of hydroxyzine
Volver al contenidoCommon side effects of hydroxyzine include:
Feeling dizzy or sleepy.
Visión borrosa.
Dolor de cabeza.
Boca seca.
Dificultad para orinar.
Malestar estomacal.
You will find a full list in the manufacturer's information leaflet supplied with your medicine.
How to manage hydroxyzine side effects
Volver al contenidoThe unwanted effects often improve as your body adjusts to the new medicine, but speak with your doctor or pharmacist if any continue or become troublesome.
Hydroxyzine side effects | ¿Qué puedo hacer si experimento esto? |
Sensación de mareo o somnolencia, y visión borrosa | Do not drive and do not use tools or machines. Do not drink alcohol |
Dolor de cabeza | Bebe mucha agua y pide a tu farmacéutico que te recomiende un analgésico adecuado. Si los dolores de cabeza continúan, informa a tu médico |
Boca seca | Intenta chupar caramelos sin azúcar o masticar chicle sin azúcar |
Difficulty passing urine | Hable con su médico si esto se vuelve problemático |
Stomach upset | Mantente con comidas simples - evita alimentos ricos o picantes |
Si experimenta otros síntomas que cree que pueden deberse a este medicamento, hable con su médico o farmacéutico para obtener más consejos.
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Who should not take hydroxyzine
Volver al contenidoTo make sure that this is the right treatment for you, before you start taking hydroxyzine it is important that you discuss the treatment with a doctor or pharmacist if:
You are pregnant, trying for a baby or breastfeeding.
You are over 65 years of age. This is because you could be more susceptible to side effects.
You have a problem with the way your liver works, or if you have a problem with your kidneys.
You have a condition which causes increased pressure in your eyes, such as glaucoma.
Tienes problemas de próstata, o si has estado experimentando alguna dificultad para orinar.
You know you have an unusual heart rhythm.
Sabes que tienes una obstrucción en tus intestinos delgados.
Tiene epilepsia.
You have any long-term breathing problems, such as asthma or bronchitis.
You have a rare inherited blood condition known as porphyria.
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.
You have ever had an allergic reaction to a medicine.
How to take hydroxyzine
Volver al contenidoRead the information leaflet in the pack before you start taking hydroxyzine. It explains how the medicine works and lists possible side effects.
Take hydroxyzine as your doctor tells you. Usually, take 1 dose at night, sometimes you may need extra doses during the day.
You can take it with or without food. Take it with water if that helps.
If you miss a dose, skip it and take the next one at the normal time. Do not take 2 doses together.
You usually only need it for a short time. Stop taking it when your symptoms get better.
Obteniendo el máximo de tu tratamiento
Volver al contenidoHydroxyzine may make you feel sleepy. If it does, do not drive or use tools or machines.
Do not drink alcohol, as it can make the sleepiness worse.
Tell your doctor, nurse, or dentist you are taking hydroxyzine before any operation, treatment, or tests, especially allergy tests. You may need to stop it for a short time.
Your skin may become more sensitive to sunlight. Use sunscreen (SPF 15 or higher with UVA protection) and avoid sunbeds.
Check with a pharmacist before taking other medicines, as some can interact with hydroxyzine and increase side effects.
How to store hydroxyzine
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
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.
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.
Preguntas frecuentes
Volver al contenidoCan I buy hydroxyzine over the counter?
No, hydroxyzine is not available over the counter in the UK or the US. It is a prescription-only medication that must be prescribed by a doctor or other licensed healthcare professional.
How long does it take for hydroxyzine to work?
Hydroxyzine usually starts working within 15 to 30 minutes after taking it. Most people notice its calming or sedating effects within the first hour.
How long does hydroxyzine last?
Hydroxyzine typically lasts around 4 to 6 hours, with the strongest calming or sedating effects usually felt during that time. Although the noticeable effects wear off after a few hours, the medication can remain in your body for several days.
Can I drink alcohol on hydroxyzine?
No, it is best to avoid drinking alcohol while taking hydroxyzine. Combining the two can increase drowsiness, dizziness, and the risk of impaired coordination and slowed breathing.
Can I take hydroxyzine while pregnant?
Hydroxyzine should only be taken during pregnancy if prescribed by a doctor, as it may not be suitable for everyone. Your healthcare provider can advise whether the benefits outweigh any potential risks and discuss safer alternatives if needed.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
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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 reviewerView full bio

Dr Colin Tidy, MRCGP
Médico General, Autor Médico
MBBS, MRCGP, MRCP (Paediatrics), DCH
Dr Colin Tidy is an NHS Doctor, based in Oxfordshire.
Historial del artículo
La información en esta página está escrita y revisada por pares por clínicos calificados.
Siguiente revisión prevista: 25 de octubre de 2027
27 Abr 2023 | Última versión

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