Gotas óticas de gentamicina
Revisado por pares por Dr Colin Tidy, MRCGPÚltima actualización por Michael Stewart, MRPharmSÚltima actualización 7 Nov 2022
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Gentamicin drops are used to treat ear infections. Follow carefully the instructions you have been given for using the drops.
Unless you have been told otherwise, use two or three drops three or four times a day, and also at night.
Throw the bottle away after your treatment has finished, even if there is some liquid left.
The most common side effects of gentamicin are mild irritation, itching or stinging.
De un vistazo
Gentamicin ear drops are used to treat bacterial ear infections.
They kill germs that cause infection and can also reduce swelling.
Common side effects are mild irritation, itching, or stinging in the ear.
Do not use them if you have a burst eardrum or certain other conditions.
Always wash your hands before using, and tilt your head for a few minutes after.
A course of treatment is usually no more than 7-10 days.
Do not use opened bottles for longer than four weeks.
About gentamicin ear drops
Tipo de medicamento | Anti-infective ear drop |
Usado para | Treatment of ear infections in adults and children |
Disponible como | Drops (which can be prescribed for use in eyes or ears) |
What are gentamicin ear drops used for?
Gentamicin ear drops are used to treat bacterial recurrentes. The drops kill germs (bacteria) which are the cause of infection.
If the ear is swollen as well as infected (as in otitis externa, for example), your doctor may prescribe gentamicin ear drops which also contain hydrocortisone. These drops will reduce the inflammation as well as treat the infection.
Side effect of gentamicin ear drops
Common side effects of gentamicin ear drops are:
Mild irritation.
Picazón.
Stinging.
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.
Gentamicin ear drop side effects | ¿Qué puedo hacer si experimento esto? |
Mild irritation, itching, or stinging | If this continues or becomes severe, speak with your doctor |
If you experience any other symptoms which you think may be due to the drops, speak with your doctor or pharmacist for further advice.
Who should not use gentamicin ear drops?
Some medicines are not suitable for people with certain conditions, and sometimes a medicine can only be used if extra care is taken. Before you (or your child) start using gentamicin drops, it is important that your doctor knows:
If you have a burst (perforated) eardrum.
Si estás embarazada o amamantando.
If you have ever had an allergic reaction to gentamicin or to any other antibiotic, or to any other ear drops.
If you have a condition called miastenia gravis. This is a condition which causes muscle weakness.
Si está tomando o usando 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 use gentamicin ear drops
Always read the leaflet in the pack before starting lymecycline. It explains how to take it and lists possible side effects.
Lávate las manos antes de comenzar.
Clean your ear gently with warm water and pat it dry.
Remove the cap from the bottle of ear drops.
Recuéstate, o inclina un poco la cabeza, de modo que el oído afectado quede hacia arriba.
Tira suavemente de tu lóbulo de la oreja para enderezar el canal auditivo.
Hold the container upside down near to the ear. Try not to touch the inside of your ear as you do this.
Apply enough pressure to the container to release two or three drops into your ear.
Mantén tu oído hacia arriba durante unos minutos para permitir que la solución entre en contacto con el área afectada.
Repite el proceso en tu otro oído si te han indicado usar las gotas en ambos oídos.
Replace the cap on to the bottle of drops.
Obteniendo el máximo de tu tratamiento
Take lymecycline exactly as your doctor tells you to and always check the label for the correct dose. It is usually 3-4 times a day and at night.
Don’t miss doses - if you forget, apply the drops as soon as you remember.
Don’t use cotton buds or objects inside your ear as they can irritate or damage the skin. Wipe only the outer ear with a clean cloth or tissue if there’s any discharge.
You will be prescribed a short course of treatment (usually no more than 7-10 days). If you feel your infection is no better after this time, make another appointment to see your doctor for advice.
How to store gentamicin ear drops
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.
Throw away the bottle of ear drops after you have finished your course of treatment, even if there is some liquid left.
Do not keep opened bottles to use later, as ear drops must not be used if the bottle has been opened for longer than four weeks.
Información importante sobre todos los medicamentos
Información importante sobre todos los medicamentos
If you suspect that someone has swallowed some of this medicine, contact the accident and emergency department of your local hospital for advice
If you buy any medicines check with a pharmacist that they are safe to use with your other medicines.
Si vas a someterte a una operación o tratamiento dental, informa a la persona que realiza el tratamiento sobre los medicamentos que estás usando.
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 Sitio web de Yellow Card.
Preguntas frecuentes
How long does it take for gentamicin ear drops to work?
Gentamicin ear drops usually start to ease symptoms within a few days. Most infections improve significantly within 7 days, as long as the drops are used exactly as prescribed.
What does gentamicin do to the middle ear?
Gentamicin works by killing bacteria that cause middle ear infections, helping reduce pain, swelling and discharge. It is used carefully, as high doses or prolonged use can affect the balance or hearing structures in the inner ear.
Are gentamicin ear drops safe to use during pregnancy?
Gentamicin ear drops are generally avoided in pregnancy, as aminoglycosides can pose a small risk to the baby if significant absorption occurs. A doctor will usually recommend a safer alternative unless the benefits clearly outweigh the risks.

¿Inseguro sobre mezclar medicamentos?
Verifica posibles interacciones entre medicamentos, suplementos y alimentos antes de tomarlos juntos.
Preguntas frecuentes
What should I do if I forget to apply a dose of gentamicin ear drops?
If you forget to apply a dose, you should put the drops in as soon as you remember. It's important not to miss doses to ensure the treatment is effective.
Are there any products I should avoid using in my ear while using gentamicin ear drops?
Yes, you should avoid using cotton buds or any other objects inside your ear. These can irritate or damage the skin in your ear canal. If there is any discharge, gently wipe only the outer ear with a clean cloth or tissue.
How long can I keep an opened bottle of gentamicin ear drops?
You should not use an opened bottle of ear drops for longer than four weeks. After this period, any remaining liquid should be thrown away, even if there's some left, as ear drops must not be used if the bottle has been open for too long.
What should I do with my gentamicin ear drops once my course of treatment is finished?
Once you have finished your prescribed course of treatment, you should throw away the bottle of ear drops, even if there is some liquid remaining. Do not keep opened bottles to use later.
Lecturas adicionales y referencias
- Manufacturer's PIL, Gentamicin Eye/Ear Drops 0.3%; FDC International Ltd, The electronic Medicines Compendium. Dated October 2020.
Sobre el autorVer biografía completa

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 revisorVer biografía completa

Dr Colin Tidy, MRCGP
Médico General, Autor Médico
MBBS, MRCGP, MRCP (Paediatrics), DCH
El Dr. Colin Tidy es un médico del NHS, con sede en Oxfordshire.
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.
Next review due: 6 May 2027
7 Nov 2022 | Última versión

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