Rifaximina para la diarrea del viajero
Xifaxanta
Revisado por pares por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 19 Sept 2023
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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.
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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
Volver al contenidoSome 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.
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How to take rifaximin tablets
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 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
Volver al contenidoIt 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.
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Can rifaximin 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 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
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.
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 la Tarjeta Amarilla.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Lecturas adicionales y referencias
- Manufacturer's PIL, Xifaxanta® 200 mg Film-coated Tablets; Norgine Limited, The electronic Medicines Compendium. Dated October 2020.
- Medicamentos Completos BNF 89ª Edición; Asociación Médica Británica y Sociedad Real de Farmacia de Gran Bretaña, Londres.
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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

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