Amikacin (fortified) Eye Drops: Uses, Brands & Dosage

Amikacin (fortified) eye drops are a powerful antibiotic used to treat severe bacterial infections of the cornea, the clear front part of your eye.

Drug class	Antibiotic (Aminoglycoside)
Type	Single
Forms	Fortified Eye Drop
Common strength	2.5%
Common Indian brands	Prepared in hospital pharmacy from Amikacin injection
Prescription status	Prescription (hospital-prepared)

What Amikacin (fortified) is used for

Amikacin (fortified) eye drops are a special type of antibiotic eye medicine used to treat serious eye infections. Specifically, they are prescribed for:

Severe or resistant gram-negative bacterial corneal ulcer: This is a serious infection of the cornea (the clear front window of your eye) caused by specific types of bacteria. These infections can be very dangerous and, if not treated effectively, can lead to vision loss.

Your eye specialist will determine if this medicine is right for your condition based on the type and severity of your corneal infection.

How it works

Amikacin (fortified) eye drops contain a high-strength antibiotic called Amikacin. This medicine belongs to a group of antibiotics known as aminoglycosides. It works by killing the bacteria that are causing the infection in your cornea. Because it is ‘fortified,’ it means it is prepared at a higher strength than usual to specifically target and effectively treat very serious and resistant bacterial infections of the eye. This high concentration helps to fight off tough bacteria that might not respond to standard antibiotic eye drops, helping to clear the infection and protect your vision.

How it’s used

Amikacin (fortified) eye drops are a powerful medicine and must be used exactly as prescribed by your corneal specialist. The typical dosing for a severe corneal ulcer is:

Hourly, day and night, in the early phase of a severe ulcer: This means you will need to apply the drops every hour, around the clock, even waking up during the night, especially in the initial critical period of your treatment. This frequent dosing ensures a continuous high level of antibiotic in your eye to fight the infection aggressively.

Your doctor will provide you with a detailed schedule for applying the drops. It is crucial to follow this schedule precisely and not miss any doses. As your condition improves, your doctor may adjust the frequency of the drops. Do not change the dosing schedule or stop using the drops without consulting your ophthalmologist.

General steps for applying eye drops:

Wash your hands thoroughly with soap and water before touching your eyes or the medicine bottle.
Gently shake the bottle if instructed, or if it looks like the medicine has settled.
Tilt your head back slightly and pull down your lower eyelid with one finger to create a small pocket.
Hold the dropper tip directly over your eye, being careful not to touch your eye, eyelid, or any other surface with the tip to prevent contamination.
Gently squeeze the bottle to release one drop into the pocket you created.
Close your eye gently for a minute or two, without squeezing or blinking excessively, to allow the medicine to spread.
Blot any excess liquid from your eyelid with a clean tissue.
If you need to use another type of eye drop, wait at least 5-10 minutes before applying the next medicine.
Wash your hands again after applying the drops.

Always store the drops as instructed, typically in the refrigerator, and discard them after the short shelf life mentioned by your hospital pharmacy.

Always follow your ophthalmologist’s exact instructions.

Brands available in India

Prepared in hospital pharmacy from Amikacin injection

Brand availability and pricing vary; confirm with your pharmacist.

Good to know

Prescription eye medicine — use only as directed by a qualified ophthalmologist. This page is for general education and is not a substitute for professional medical advice, diagnosis or a prescription. Do not self-medicate or reuse an old prescription. This is given only by specialists in a hospital or clinic setting and is never for self-use.

Precautions & side effects

Amikacin (fortified) eye drops are a specialized medicine requiring careful handling and use. Please be aware of the following important precautions:

Hospital-prepared: These drops are not commercially available off the shelf. They are specially prepared in the hospital pharmacy from Amikacin injection to achieve the fortified strength needed for severe eye infections.
Short shelf life: Due to their special preparation, these drops have a very short shelf life. It is crucial to note the expiry date provided by the hospital pharmacy and discard any unused medicine after this period. Do not use expired drops.
Must be refrigerated: To maintain its effectiveness, this medicine must be stored in the refrigerator. Follow the specific storage instructions given by your hospital pharmacy.
Used only under a corneal specialist: This powerful antibiotic is prescribed and monitored only by a corneal specialist, an ophthalmologist who specializes in diseases of the cornea. It is never for self-medication or general use.
Prescription eye medicine: Amikacin (fortified) eye drops are a prescription-only medicine. Use them only as directed by a qualified ophthalmologist. This page is for general education and is not a substitute for professional medical advice, diagnosis, or a prescription. Do not self-medicate or reuse an old prescription. This is given only by specialists in a hospital or clinic setting and is never for self-use.

If you experience any unusual symptoms, increased redness, pain, swelling, or worsening vision after using the drops, contact your ophthalmologist immediately.

Understanding Corneal Ulcers and Why Treatment is Crucial

The cornea is the transparent, dome-shaped front part of your eye that covers the iris, pupil, and anterior chamber. It plays a vital role in focusing light onto the retina, allowing you to see clearly. A corneal ulcer is an open sore on the cornea, usually caused by an infection. These infections can be bacterial, fungal, viral, or parasitic. When bacteria are the cause, especially certain types known as ‘gram-negative’ bacteria, the infection can be very aggressive and progress rapidly. If not treated promptly and effectively, a corneal ulcer can lead to severe complications, including permanent scarring of the cornea, vision loss, or even loss of the eye in extreme cases. Symptoms of a corneal ulcer often include severe eye pain, redness, blurred vision, sensitivity to light (photophobia), and excessive tearing or discharge from the eye. Because of the serious nature of these infections, your eye doctor may prescribe a ‘fortified’ antibiotic like Amikacin (fortified) eye drops. ‘Fortified’ means the medicine is prepared at a higher strength than usual to deliver a powerful dose of antibiotic directly to the infection site, giving the best chance to eradicate the bacteria and save your vision. It’s important to understand that treating a corneal ulcer is a race against time, and strict adherence to your doctor’s instructions is paramount.

Correct Eye Drop Application and Hygiene

Proper application of eye drops is essential for the medicine to work effectively and to prevent further infection. Always begin by washing your hands thoroughly with soap and water. This simple step is critical to avoid introducing new germs into your eye. Before opening the bottle, you might gently shake it if instructed or if the medicine appears to have settled. When applying the drop, tilt your head back and gently pull down your lower eyelid to create a small pocket. Hold the dropper bottle upside down, directly over your eye, being very careful not to let the tip touch your eye, eyelid, or eyelashes. Touching the tip can contaminate the medicine, making it unsafe to use. Squeeze the bottle gently to release one drop into the pocket. After the drop is in, close your eye gently for about one to two minutes. Avoid squeezing your eyes shut tightly or blinking excessively, as this can push the medicine out of your eye. Use a clean tissue to blot any excess liquid around your eye. If you need to apply more than one type of eye drop, always wait at least 5-10 minutes between different medicines to ensure each drop has enough time to be absorbed and to prevent one drop from washing out another. After you’re done, wash your hands again. Remember, these drops are for your eyes only; do not ingest them or use them on other parts of your body.

Storage, Shelf Life, and When to Seek Medical Help

Given that Amikacin (fortified) eye drops are specially prepared in the hospital pharmacy, their storage and shelf life are critical. You will be instructed to store them in the refrigerator. It is vital to maintain this cold chain to ensure the medicine remains potent and effective. These drops have a very short shelf life, typically only a few days to a week, because they are freshly prepared without the long-term preservatives found in commercial products. Always check the expiry date written on the bottle by the hospital pharmacy and discard any remaining medicine after this date, even if there is still some left. Using expired or improperly stored medicine can be ineffective or even harmful. It is also crucial to understand when to seek immediate medical attention. While you are undergoing treatment, your doctor will likely schedule frequent follow-up appointments. However, if you experience any worsening of your symptoms, such as increased pain, redness, discharge, blurring of vision, or if you develop new symptoms like fever or headache, contact your ophthalmologist immediately. Do not wait for your next scheduled appointment. These could be signs that the infection is not responding to treatment or that a complication is developing. Your doctor is your best resource for guidance throughout your treatment journey, and open communication about your symptoms is key to a successful recovery.

Frequently asked questions

What is Amikacin (fortified) eye drop used for?

Amikacin (fortified) eye drops are used to treat severe or resistant gram-negative bacterial corneal ulcers, which are serious bacterial infections of the clear front part of your eye.

How does Amikacin (fortified) eye drop work?

It is a high-strength antibiotic drop specifically made to kill the bacteria causing serious corneal infections. The 'fortified' strength helps it to be very effective against tough bacteria.

What are the common Indian brands of Amikacin (fortified) eye drop?

Amikacin (fortified) eye drops are not available as commercial brands. They are specially prepared in the hospital pharmacy from Amikacin injection for each patient.

How should I use Amikacin (fortified) eye drop?

In the early phase of a severe ulcer, it is typically used hourly, day and night. You must follow the exact dosing schedule provided by your corneal specialist.

Do I need a prescription for Amikacin (fortified) eye drop?

Yes, Amikacin (fortified) eye drops are a prescription medicine. They are hospital-prepared and used only under the guidance of a corneal specialist in a hospital or clinic setting.

What are the key precautions I should take with Amikacin (fortified) eye drop?

Key precautions include: it is hospital-prepared and has a short shelf life, it must be refrigerated, and it should only be used under the supervision of a corneal specialist. Never self-medicate or reuse an old prescription.

References

Medically reviewed by Dr. C Jagadesh Reddy, Chief Surgeon: Cornea, Cataract and Refractive Surgery — last reviewed 2026-07-28.

This page is for general education only and is not a substitute for professional medical advice, diagnosis or treatment. Never self-medicate or reuse an old prescription. Always consult a qualified ophthalmologist before starting, changing or stopping any eye medicine.