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Rifaximina para la diarrea del viajero

Xifaxanta

Take one 200 mg tablet every eight hours, for three days (Xifaxanta® brand).

Drink plenty of water or rehydration drinks, and eat light meals as soon as you feel able to.

The most common side-effects of rifaximin are feeling sick (nausea), feeling dizzy and headache.

De un vistazo

  • Rifaximin is an antibiotic used to treat traveller's diarrhoea.

  • It works within your gut and is not absorbed into the body.

  • Take one tablet every eight hours for three days, remembering to finish the course.

  • Do not take rifaximin if you have a fever or blood in your diarrhoea.

  • Common side-effects include dizziness, headache, and tummy discomfort.

  • Drink plenty of fluids to avoid dehydration.

About rifaximin

Tipo de medicamento

A rifamycin antibiotic

Usado para

diarrea del viajero

También llamado

Xifaxanta®

Disponible como

Comprimidos

diarrea del viajero is diarrhoea that develops during, or shortly after, you have travelled abroad. Diarrhoea is defined as 'loose or watery stools, usually at least three times in 24 hours'. Traveller's diarrhoea is commonly caused by eating food or drinking water containing germs (bacteria). In most cases, the symptoms are mild, and the body's immune system clears them within a few days.

Rifaximin is an antibiotic which works within the gastrointestinal system. It is not absorbed into the body (this means that it is not suitable to treat other types of infection). You may be advised by your doctor to take a supply with you when you travel, 'just in case' you develop diarrhoea. You will be prescribed a brand called Xifaxanta®. The tablets are not suitable if you also have a high temperature (fever) or if there is blood in the diarrhoea - you should get medical assistance as soon as possible in these cases. Rifaximin should not be given to children.

(A brand of rifaximin tablets called Targaxan® is used to help prevent episodes of a problem called hepatic encephalitis in people with liver disease. If you are taking it for this reason, see the separate leaflet called Rifaximina para problemas hepáticos.)

Before taking rifaximin

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 rifaximin it is important that your doctor knows:

  • Si estás embarazada, intentando concebir o amamantando.

  • If you have any problems with your kidneys.

  • Si alguna vez has tenido una reacción alérgica a un medicamento.

  • Si 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.

How to take rifaximin tablets

  • Before you start the treatment, read the manufacturer's printed information leaflet from inside the pack. It will give you more information about rifaximin and will provide you with a full list of the side-effects which you may experience from taking it.

  • Take rifaximin exactly as your doctor tells you to. Take one 200 mg tablet every eight hours for three days (Xifaxanta® brand). It is important that you space the doses out evenly, and that you remember to finish the whole course of tablets. Swallow the tablets with a drink of water; they can be taken with or without food.

  • If you forget to take a dose, take it as soon as you remember. Try to take the correct number of doses each day, spaced out evenly. Do not take two doses together to make up for a missed one.

Obteniendo el máximo de tu tratamiento

  • It is important for you to drink plenty of fluids to avoid dehydration. You can drink 'safe' water (for example, bottled, or boiled and treated water) or rehydration drinks (which contain a balance of salts and sugars and can be bought from a pharmacy before you travel). Remember to make up rehydration drinks using safe water.

  • Eat as soon as you feel able to. Plain foods such as bread and rice are good foods to eat. Try to avoid fatty, spicy or heavy food.

  • Taking rifaximin could cause a slight reddish colour in your urine. This is normal and harmless.

Can rifaximin cause problems?

Along 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 rifaximin when taken for traveller's diarrhoea. 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 rifaximin side-effects (these affect fewer than 1 in 10 people)


¿Qué puedo hacer si experimento esto?

Sensación de mareo

No conduzca ni utilice herramientas o máquinas mientras se sienta mareado

Dolor de cabeza

Drink plenty of water and ask a pharmacist to recommend a suitable painkiller

Feeling sick (nausea), gastrointestinal upset, tummy (abdominal) discomfort

Stick to simple foods and remember to drink plenty of safe water

Alta temperatura (fiebre)

If this continues, see or speak with a doctor for advice

If you experience any other symptoms which you think may be due to the tablets, speak with a doctor or pharmacist for further advice.

How to store rifaximin

  • Mantenga 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

Información 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.

Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás tomando.

Si compras algún medicamento, siempre consulta con un farmacéutico para asegurarte de que sean adecuados para tomar junto con tus otros medicamentos.

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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¿Inseguro sobre mezclar medicamentos?

Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.

Preguntas frecuentes

What is the primary difference between rifaximin and other antibiotics?

Rifaximin is unique because it works specifically within your gastrointestinal system and is not absorbed into the rest of your body. This means it's effective for conditions like traveller's diarrhoea that affect the gut, but it won't treat infections in other parts of your body.

Are there specific circumstances when rifaximin should not be used for traveller's diarrhoea?

Yes, rifaximin is not suitable if you have a high temperature (fever) or if there is blood in your diarrhoea. In these situations, you should seek medical assistance as soon as possible. It should also not be given to children.

What are some recommended foods to eat when recovering from traveller's diarrhoea?

Once you feel well enough, it's advised to eat plain foods such as bread and rice. You should try to avoid fatty, spicy, or heavy foods during this time.

What should I do if I forget to take a dose of rifaximin?

If you miss a dose, take it as soon as you remember. The goal is to take the correct number of doses each day, spaced out evenly. Do not take two doses at once to compensate for a forgotten one.

Can rifaximin affect the colour of my urine?

Yes, taking rifaximin could cause a slight reddish colour in your urine. This is considered normal and harmless.

Lecturas adicionales y referencias

Sobre el autorVer biografía completa

Imagen del autor

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

Imagen del autor

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.

  • Próxima revisión: 18 de septiembre de 2026
  • 19 Sept 2023 | Última versión

    Última actualización por

    Michael Stewart, MRPharmS

    Revisado por pares por

    Sid Dajani
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