Tobramycin för ögoninfektioner
Granskad av Sid DajaniSenast uppdaterad av Michael Stewart, MRPharmSSenast uppdaterad 24 Jan 2024
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Use the drops twice a day for seven days, unless you have been told otherwise by your doctor.
Your vision may become slightly blurred for a short while after using the drops. If so, do not drive and do not use tools or machines until you can see clearly again.
Do not wear contact lenses until your symptoms have completely gone.
Överblick
Tobramycin eye drops treat bacterial eye infections by killing germs.
They are also available combined with dexamethasone (Tobradex®) for use after cataract surgery.
Use the drops twice a day for seven days, unless your doctor advises otherwise.
Blurred vision may occur when first using the drops; ensure clear vision before driving.
Do not wear contact lenses until your symptoms have completely gone.
Seek medical advice if symptoms worsen, your eye becomes painful, or your sight is affected.
Klinisk författares anmärkning Michael Stewart 30/02/2018: Tobravisc® eye drops were discontinued in the UK in April 2017. At the time of review there are no branded or generic eye drop products solely containing tobramycin available in the UK. Tobramycin is still available in combination with dexamethasone for the prevention of eye infections following cataract surgery (Tobradex®). Tobramycin eye drops may still be available in other countries. This Medicine Leaflet only covers the use of tobramycin in the treatment of eye infections and is based on medical information available in the UK at the time of writing. It is left here for reference purposes only. Please also refer to the manufacturer's information supplied with your medicine.
About tobramycin for eye infections
Typ av medicin | Antibacterial eye preparation |
Används för | Eye infections in adults and children |
Även kallad | Tobrex® (in USA) Tobradex® (contains tobramycin with dexamethasone) |
Tillgänglig som | Eye drops |
Tobramycin eye drops are prescribed to treat bacterial eye infections. They work by helping to kill the germs (bacteria) which are causing the infection.
Eye infections are a common cause of conjunctivitis. In conjunctivitis, your eye becomes inflamed, feels gritty, and may water more than usual. The white of your eye may look red, and your eyelids may become swollen and stuck together with a discharge when you wake up in the morning. Only one eye may be infected to begin with, but it often spreads to both eyes. Although infective conjunctivitis may clear without treatment, for more severe infections or for infections which do not clear on their own, antibiotic eye drops like tobramycin are helpful.
Tobramycin is also available combined with a medicine called dexamethasone in eye drops called Tobradex®. This combination brand helps to prevent infection and reduces inflammation after eye cataract surgery.
Before using tobramycin eye drops
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 using tobramycin eye drops it is important that your doctor knows:
Om du är gravid eller ammar.
If you have ever had an allergic reaction to an antibiotic, or to any eye drops.
If you are taking or using any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
How to use tobramycin eye drops
Wash your hands before you use the drops.
Remove the cap from the bottle.
Luta huvudet lite bakåt och dra det nedre ögonlocket nedåt för att bilda en ficka.
Hold the bottle upside down near to your eye. Try not to touch your eye as you do this.
Gently press on the base of the bottle to release one drop into your eye. Only use a second drop if the first drop missed going into your eye.
Close your eye for a minute or two, and press gently on the side of your nose where the corner of your eye meets your nose. This helps to stop the drop from draining away and keeps it in your eye.
Repeat the process in your other eye if you have been told to use the drops in both eyes.
Replace the cap.
Få ut det mesta av din behandling
Before you start the treatment, read the manufacturer's printed information leaflet from the pack. It will give you more information about the drops and will provide you with a full list of any side-effects which you may experience from using them.
If your eyes have an obvious discharge or 'crust', it can help if you bathe them with cool clean water before using tobramycin drops.
Use the drops twice a day - in the morning and in the evening. (If your infection is particularly severe, your doctor may ask you to use the drops four times on the first day.) Try not to miss any doses, but if you do forget to put the drops in on time, do it as soon as you remember.
You should continue to use the drops for seven days unless your doctor has told you otherwise. If your infection is no better after this time, make another appointment to see your doctor for advice.
When you first put the drops into your eye, they may cause blurred vision. This should quickly clear, but make sure you can see clearly before you drive and before you use machines or tools.
Take care to avoid spreading the infection from one eye to the other, and to other members of your family. Washing your hands regularly (particularly after touching your eyes) and not sharing towels or pillows will help to prevent the infection from spreading.
If the tip of the bottle touches your eye(s) when putting the drops in, it is a good idea to squeeze out two or three drops straightaway on to some tissue and rinse the tip with salt water.
Eye infections can cause your eyes to become more sensitive to sunlight than usual. Wearing sunglasses may help to prevent this.
If you are using any other eye drops, leave 5-10 minutes between applying each preparation. This is to prevent more liquid going into your eye than it can handle. Otherwise the drops will overflow from your eye and not have the intended effect.
If your symptoms become worse despite using tobramycin, you should arrange to see your doctor for advice straightaway. In particular, see your doctor again if your eye becomes painful, if light starts to hurt your eyes, or if your sight is affected.
Do not wear contact lenses until your symptoms have completely gone. Wait for 24 hours after the last dose of eye drops before using your lenses again.
Can tobramycin eye drops 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 tobramycin eye drops. You will find a full list in the manufacturer's information leaflet supplied with the drops. Speak with your doctor if any of the following continue or become troublesome.
Common tobramycin eye drop side-effects (these affect fewer than 1 in 10 people) | Vad kan jag göra om jag upplever detta? |
Eye itching, discomfort, or redness | Om det är besvärligt, prata med din läkare . They may be symptoms of the infection; or, they may indicate that you have an allergy to the drops |
If you experience any other symptoms which you think may be due to the eye drops, speak with your doctor or pharmacist for further advice.
How to store tobramycin eye drops
Förvara alla läkemedel utom räckhåll och synhåll för barn.
Förvara på en sval, torr plats, borta från direkt värme och ljus.
Throw away the bottle of eye drops after you have finished the course of treatment, even if there is some liquid left. Never keep opened bottles of eye drops to use later.
Viktig information om alla läkemedel
Viktig information om alla läkemedel
Se till att personen som tillhandahåller denna medicin känner till alla andra mediciner du tar eller använder. Detta inkluderar alla mediciner du har köpt, samt växtbaserade och homeopatiska mediciner.
Om du ska genomgå en operation eller tandbehandling, informera den som utför behandlingen om vilka mediciner du använder.
Denna medicin är för dig. Ge den aldrig till andra människor även om deras tillstånd verkar vara detsamma som ditt.
If you suspect that someone might have swallowed some of this medicine, contact your local accident and emergency department for advice.
Behåll inte föråldrade eller oönskade mediciner. Ta dem till ditt lokala apotek som kommer att ta hand om dem åt dig.
Om du har några frågor om denna medicin, fråga din apotekare.
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Vanliga frågor
What is the difference between tobramycin eye drops and Tobradex®?
Tobramycin eye drops are used to treat bacterial eye infections. Tobradex® is a combination of tobramycin and dexamethasone, which is used to prevent infection and reduce inflammation, particularly after eye cataract surgery.
Why shouldn't I wear contact lenses while using tobramycin eye drops?
You should not wear contact lenses until your eye infection symptoms have completely resolved. After the symptoms are gone, you need to wait 24 hours after your last dose of eye drops before you can start wearing your lenses again.
Can tobramycin eye drops make my eyes sensitive to light?
Yes, eye infections can sometimes make your eyes more sensitive to sunlight. Wearing sunglasses might help to alleviate this increased sensitivity.
What should I do if I am using other types of eye drops?
If you are using any other eye drops, you should leave a gap of 5-10 minutes between applying each different preparation. This ensures that your eye can absorb each drop effectively and prevents them from overflowing without having the intended effect.
What should I do if I accidentally touch my eye with the tip of the bottle?
If the tip of the bottle touches your eye while you are administering the drops, it is advisable to immediately squeeze out two or three drops onto a tissue and then rinse the tip of the bottle with salt water.
Vidare läsning och referenser
- Manufacturer's PIL, Tobradex® Eye Drops; Novartis Pharmaceuticals UK Ltd, The electronic Medicines Compendium. Dated June 2022.
- Manufacturer's FDA Drug Label, Tobrex® 0.3% solution/drops; Alcon Laboratories, Inc. DailyMed, National Institutes of Health, US National Library of Medicines. Last updated April 2020.
- Mediciner Komplett BNF 89:e Utgåvan; Brittiska Läkarföreningen och Kungliga Farmaceutiska Sällskapet i Storbritannien, London.
Om författarenVisa fullständig biografi

Michael Stewart, MRPharmS
Ansvarig för granskning av medicinbroschyrer – Konsult, Apotekare
BPharm (Hons), MRPharmS
Michael är en apotekare som arbetar i Midlands och South Yorkshire med mer än 20 års erfarenhet av att ge råd om läkemedel och medicinska tillstånd. Han har en stark bakgrund inom vårdutbildning och har producerat och levererat utbildningskurser för apoteksteam och personal inom vårdboenden, inklusive sjuksköterskor. Han har också bidragit till apoteksrådgivande styrelser för hantering av mindre allvarliga tillstånd i samhället.
Om recensenten

Sid Dajani
Sultan Dajani tog examen vid London School of Pharmacy 1994 och blev den yngsta valda medlemmen i Royal Pharmaceutical Society-rådet sedan dess grundande 1842.
Artikelhistorik
Informationen på denna sida är skriven och granskad av kvalificerade kliniker.
Artikeln finns också på Engelska, Tyska, Spanska, Franska, Italienska, Portugisiska, Hindi, Hebreiska, Arabiska, och Svenska.
Next review due: 23 Jan 2027
24 Jan 2024 | Senaste versionen

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