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Is this the medicine the doctor gave you for your eye infection? (Besifloxacin) - Let's find out for sure!

MBBS
Medically Reviewed by MBBS ✓ Medically Reviewed
📅 Updated: Jul 14, 2026 • ⏱ 6 min read • Editorial policy
Is this the medicine the doctor gave you for your eye infection? (Besifloxacin) - Let's find out for sure!
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The eye is red, itchy, and maybe a little sore... When you go to the doctor at a time like this, they give you an eye drop, right? One of the medications they give you is Besifloxacin. If you have had to use this medicine, it is very important to know exactly what it is. So let's talk about it today.

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Simply put, what is Besifloxacin?

Besifloxacin is an antibiotic that belongs to the quinolone class of drugs . Simply put, it is used to treat bacterial infections in the eyes. You may find this medication under the brand name Besivance. There are other uses for this medication as well. If you have any questions about it, ask your doctor.

Things you need to tell your doctor before using the medicine

It is very important that your doctor is aware of these facts before giving you this medicine.

  • If you wear contact lenses .
  • If you have an allergic reaction to Besifloxacin or other antibiotics, foods, dyes, or preservatives.
  • If you are pregnant, or trying to get pregnant .
  • If you are a breastfeeding mother .

Don't hide this kind of information from the doctor, because it is very important for your safety.

How exactly do you use this medicine?

Follow these steps when applying this medicine to your eyes. Then you can get the full benefit of the medicine.

1. Wash your hands thoroughly: Wash your hands thoroughly with soap before and after using the medicine.

2. Shake the bottle well: The medicine bottle should be shaken well before use.

3. Be careful with the dropper tip: Do not touch the tip of the dropper to your eye, fingertips, or anywhere else. Doing so can easily introduce germs into the bottle.

4. Apply eye drops: Tilt your head back slightly and gently pull down your lower eyelid with your index finger. Then, apply the prescribed number of drops of eye drops to the small pouch that forms.

5. Keep your eyes closed: After applying the medicine, slowly close your eyes and let the medicine spread throughout your eyes.

6. Your vision may be slightly blurred: Your vision may be slightly blurred for a few minutes after applying the medicine. This is normal.

7. Use the medicine at the right time: Use the medicine at the right time, at the right intervals, as prescribed by the doctor. Do not use more than prescribed.

8. Complete the course:This is the most important thing. Even if you feel better, use all the medicine your doctor has prescribed until it is finished. Don't stop halfway. If you do, the infection may come back.

If you are giving this medicine to young children, it is essential to consult a pediatrician. It is sometimes prescribed for children as young as one year old, but special precautions are required.

What if the medicine is used too much? (Overdosage)

If you think you have taken more medicine than you think, call the National Poisons Information Centre at the Colombo National Hospital immediately. Or go to the Emergency Department (ETU) of the nearest hospital.

What if I forget to take my medicine?

If you forget to take a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take the next dose at the scheduled time. Never take a double dose.

Things to be careful about when using

  • If your symptoms do not improve after two or three days, or if they worsen, tell your doctor immediately.
  • Do not wear contact lenses until you have any signs of an eye infection. Ask your doctor when you can wear them again.
  • If you experience signs of allergy (e.g., skin rash, itching, swelling of the face/lips/tongue) , stop using the medicine immediately and tell your doctor.
  • To prevent spreading the infection to others, do not share items such as eye drops, towels, or face cloths with others.

What are the possible side effects?

Like any medicine, this one can cause side effects in some people. Some of them are serious, some of them are common.

Side effect Description and what to do
Side effects that require immediate medical attention
Allergic Reactions Skin rash, hives, itching, swelling of the face, lips, or tongue. If you experience any of these, you should stop taking the medicine immediately.
Things that are usually not serious, but should be reported to the doctor if they persist
Eye discomfort The eye may feel slightly inflamed, red, itchy, or stinging.
Headache Slight headache.

If you notice anything unusual that is not mentioned on this list, talk to your doctor about it as well.

How do you protect your medicine?

  • Keep away from children.
  • Store at room temperature (between 15 and 25 degrees Celsius). Protect from excessive heat and light.
  • Discard expired medication without using it.

💡 Take-Home Message

  • Besifloxacin is an antibiotic used to treat eye infections caused by bacteria.
  • Before using the medicine, be sure to tell your doctor about any allergies you have, other medications you are taking, and pregnancy.
  • Even if you feel better, take the full course of medication prescribed by your doctor.
  • Do not touch the tip of the medicine bottle to your eyes, skin, or anywhere else.
  • If you experience signs of an allergy (facial swelling, skin rash), stop taking the medicine immediately and seek medical advice.
  • This medicine is for you only. Never share it with others.
❓ FAQ

FAQ

Evidence-based clinical answers to common patient questions

What if I forget to take my medicine?

If you forget to take a dose, take it as soon as you remember. However, if it is almost time for your next dose, skip the missed dose and take the next dose at the scheduled time. Never take a double dose.

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⚠️ Important: Medical articles and information on Nirogi Lanka are strictly for educational and awareness purposes and do not substitute professional medical advice, diagnosis, or treatment. Always consult a qualified physician for any medical concerns.