Fenoximetilpenicilina para la infección
Penicillin V
Revisado por Sid DajaniÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 19 dic 2022
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Phenoxymethylpenicillin is a type of penicillin - do not take it if you are allergic to penicillin. Make sure you tell your doctor if you are allergic to penicillin.
Distribuya las dosis uniformemente a lo largo del día y complete todo el tratamiento antibiótico, aunque crea que la infección ha desaparecido.
Take phenoxymethylpenicillin when your stomach is empty of food (so an hour before you eat, or two hours afterwards).
Common side effects include nausea, vomiting, diarrhoea, and thrush.
Si tiene una reacción alérgica (como hinchazón alrededor de la boca, dificultad para respirar o erupción roja), póngase en contacto con un médico inmediatamente.
En este artículo:
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About phenoxymethylpenicillin
Tipo de medicamento | Un antibiótico penicilina |
Utilizado para | Infecciones (en adultos y niños) |
También llamado | Penicillin V |
Disponible como | Comprimidos y medicamentos orales líquidos |
What is phenoxymethylpenicillin used for?
Phenoxymethylpenicillin is a type of penicillin antibiotic used to treat infections such as chest infections, tonsillitis, cellulitis, ear infections, and dental abscesses.
It is used in particular for respiratory infections in children. You may also be prescribed phenoxymethylpenicillin to protect against infection if (for example) you have had rheumatic fever, or if you have sickle-cell disease, or if you have had your spleen removed.
Phenoxymethylpenicillin works by killing the germs that are causing the infection.
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Side effects of phenoxymethylpenicillin
The most common side effects of phenoxymethylpenicillin are:
Sensación de malestar (náuseas).
Estar enfermo (vómitos).
Dolor de estómago.
Diarrea.
Zorzal.
Erupción cutánea.
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.
Speak with your doctor or pharmacist if any of the following continue or become troublesome.
How to manage phenoxymethylpenicillin side effects
Common phenoxymethylpenicillin side effects (these affect around 1 in 10 people) | ¿Qué puedo hacer si me ocurre esto? |
Feeling sick or being sick, tummy (abdominal) pain | Coma alimentos sencillos |
Diarrea | Beba mucha agua para reponer los líquidos perdidos. Si la diarrea continúa, se agrava o contiene sangre, informe inmediatamente a su médico. |
Redness and itchiness (thrush) in the mouth or vagina | Speak with your doctor or pharmacist for advice about treatment |
Erupciones cutáneas y otras reacciones de tipo alérgico | Informe a su médico lo antes posible, ya que puede ser necesario modificar su tratamiento. |
Important: if you develop an itchy rash, swollen face or mouth, or have difficulty breathing, these could be signs that you are allergic to a penicillin antibiotic.
Do not take any more phenoxymethylpenicillin, and speak with your doctor or go to your local accident and emergency department straightaway.
Si experimenta cualquier otro síntoma que considere que puede deberse al medicamento, consulte a su médico o farmacéutico.
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Who should not take phenoxymethylpenicillin?
Some medicines are not suitable for people with certain conditions. Before starting phenoxymethylpenicillin let your doctor or dentist know about any of the following:
If you have an allergic condition (such as asthma, eczema, or hay fever), or if you have ever had an allergic reaction to a medicine. This is especially important if you have ever had a bad reaction to any penicillin antibiotic.
If you are pregnant or breastfeeding (although phenoxymethylpenicillin is not known to be harmful to babies).
Si está tomando otros medicamentos. Esto incluye cualquier medicamento que esté tomando y que pueda adquirirse sin receta, así como medicamentos a base de plantas y complementarios.
How to take phenoxymethylpenicillin
Read the leaflet in the pack before starting phenoxymethylpenicillin. It explains how to take it and lists possible side effects.
Take phenoxymethylpenicillin exactly as prescribed. For short-term infections, take it four times a day; for long-term prevention, take one or two doses daily.
Your doctor or pharmacist will tell you what dose is right for you to take, and the full directions will also be printed on the label of the pack to remind you about what was said to you.
It is important that you space out the doses evenly during the day.
Si le han dado un medicamento líquido para un niño, lea atentamente las instrucciones para asegurarse de dosificar la cantidad correcta de medicamento.
Take phenoxymethylpenicillin on an empty stomach - 1 hour before or 2 hours after eating - so your body can absorb it properly.
If you forget to take a dose at your usual time, take it as soon as you remember. Try to take the correct number of doses each day, but do not take two doses at the same time to make up for a forgotten dose.
Aproveche al máximo su tratamiento
Finish the full course of phenoxymethylpenicillin, even if you feel better, unless your doctor tells you to stop.
Treatment usually lasts 7–10 days. If you’re still unwell after finishing, see your doctor. For long-term prevention, take it as prescribed.
Thrush (in the mouth or vagina) can occur after antibiotics - speak to your doctor or pharmacist if this happens.
Este antibiótico puede impedir la acción de la vacuna oral contra la fiebre tifoidea. Si tiene que vacunarse, asegúrese de que la persona que le trata sabe que está tomando este medicamento.
How to store phenoxymethylpenicillin
Mantenga todos los medicamentos fuera del alcance y de la vista de los niños.
Almacenar en un lugar fresco y seco, lejos del calor y la luz directos.
Si te han dado un medicamento líquido, guárdalo en el frigorífico. Lo habrá preparado la farmacia y dura siete días, así que compruebe la fecha de caducidad del frasco y no lo utilice después de esa fecha.
Información importante sobre todos los medicamentos
Información importante sobre todos los medicamentos
No tome nunca más de la dosis prescrita. Si sospecha que usted u otra persona ha tomado una sobredosis de este medicamento, acuda al servicio de urgencias de su hospital. Llévese el envase, aunque esté vacío.
Este medicamento es para usted. Nunca se lo dé a otras personas aunque su enfermedad parezca ser la misma que la suya.
Si compra algún medicamento, compruebe con un farmacéutico que es seguro tomarlo con sus otros medicamentos.
Si va a someterse a una operación o a un tratamiento dental, comunique a la persona que lleve a cabo el tratamiento qué medicamentos está tomando.
No guarde medicamentos caducados o que no desee. Llévelos a su farmacia local, que se encargará de eliminarlos por usted.
Si tiene cualquier duda sobre este medicamento pregunte a su farmacéutico.
MHRA - Notificación de reacciones adversas
Notifique a la Agencia Reguladora de Medicamentos y Productos Sanitarios las sospechas de efectos secundarios de medicamentos, vacunas, cigarrillos electrónicos, incidentes con productos sanitarios o productos defectuosos o falsificados para garantizar un uso seguro y eficaz.
Preguntas más frecuentes
Can I drink alcohol on phenoxymethylpenicillin?
Yes, you can usually drink alcohol while taking phenoxymethylpenicillin. Alcohol does not directly interfere with how the medicine works, but drinking may make side effects like stomach upset or dizziness feel worse.
Will taking phenoxymethylpenicillin affect my contraception?
Phenoxymethylpenicillin does not usually affect hormonal contraception. You can continue using the pill, patch or coil as normal while taking this antibiotic. If you are concerned, speak to your doctor or pharmacist for reassurance.
Can I drive or ride a bike whilst taking phenoxymethylpenicillin?
Yes, you can usually drive or ride a bike while taking phenoxymethylpenicillin. The antibiotic does not normally affect your ability to drive.
Is phenoxymethylpenicillin stronger than amoxicillin?
No, phenoxymethylpenicillin is not generally considered stronger than amoxicillin. Amoxicillin is usually preferred for a wider range of infections because it is absorbed better and works against more types of bacteria. Phenoxymethylpenicillin is still effective, but it is typically used for more specific infections, such as strep throat.
Lecturas complementarias y referencias
- Manufacturer's PIL, Phenoxymethylpenicillin 125 mg/5 ml and 250 mg/5 ml Oral Solution; Flamingo Pharma (UK) Ltd, The electronic Medicines Compendium. Dated July 2020.
- Manufacturer's PIL, Phenoxymethylpenicillin 250 mg film-coated tablets; Brown and Burk UK Ltd, The electronic Medicines Compendium. Dated May 2015.
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Historia del artículo
La información de esta página ha sido redactada y revisada por médicos cualificados.
Fecha límite de la próxima revisión: 18 dic 2025
19 dic 2022 | Última versión

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