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Cosmodex N Eye Drop is a medicine used to treat bacterial eye infections. It kills and prevents the growth of infection-causing bacteria. This way it relieves the symptoms and speeds up the healing process.

Written By Dr. Syeda Aafia, MBA, BDS,
Reviewed By Dr. Rajeev Sharma, MBA, MBBS,
Last updated on 25 Nov 2025 | 03:07 PM (IST)
₹12.8 MRP ₹14.069% off 
 
 
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Cosmodex N Eye Drop image
Cosmodex N Eye Drop image

Product introduction

Cosmodex N Eye Drop is to be used only in the affected eye. Read the label carefully for instruction before you use the medicine. Use it in the exact dose and duration as advised by the doctor or as instructed in the label. Wash your hands before using this medicine. Complete your dose even if you feel better. Stopping the medicine too early may bring back the infection.

Use of this medicine may cause burning, irritation, itching, and redness at the site of application. These are usually temporary and resolve with time. However, if they persist or get worse, inform your doctor. In case of accidental contact with your ears, nose, or mouth, immediately rinse it with water.

Inform your doctor if you have a known allergy to any of the ingredients in this medicine or if you are taking any other medication. It is advised not to drive or operate heavy machinery immediately after using this medicine as it may cause temporary blurring of vision and may affect your ability to drive.

Uses of Cosmodex N Eye Drop

  • Treatment of Bacterial eye infections

Benefits of Cosmodex N Eye Drop

Treatment of Bacterial eye infections
Cosmodex N Eye Drop is used to treat bacterial infection of the eyes such as conjunctivitis or pink eye. It stops the growth of bacteria causing infection and helps relieve pain, swelling, redness, itching or irritation in the eyes. Use it 2-3 times a day for atleast a week or as prescribed by the doctor. Your symptoms might improve after using Cosmodex N Eye Drop. However, make sure to complete the full course of treatment. This will ensure that the infection is completely cured and prevent it from returning.

Side effects of Cosmodex N Eye Drop

Most side effects do not require any medical attention and disappear as your body adjusts to the medicine. Consult your doctor if they persist or if you’re worried about them
Common side effects of Cosmodex N
  • Blurred vision

How to use Cosmodex N Eye Drop

This medicine is for external use only. Use it in the dose and duration as advised by your doctor. Check the label for directions before use. Hold the dropper close to the eye without touching it. Gently squeeze the dropper and place the medicine inside the lower eyelid. Wipe off the extra liquid.

How Cosmodex N Eye Drop works

Cosmodex N Eye Drop is a combination of two medicines: Neomycin and Dexamethasone. Neomycin is an antibiotic. It stops bacterial growth in the eye by preventing the synthesis of essential proteins required by bacteria to carry out vital functions. Dexamethasone is a steroid which blocks the production of certain chemical messengers (prostaglandins) that make the eye red, swollen and itchy.

Quick tips

  • Apply Cosmodex N Eye Drop exactly as prescribed, as overuse of steroid-containing eye medication like Cosmodex N Eye Drop can raise eye pressure or cause cataracts with long-term use.
  • If you are scheduled for an eye pressure test or have glaucoma, inform your doctor, as steroids like dexamethasone (present in Cosmodex N Eye Drop) can worsen the condition.
  • Always wash your hands before and after application and avoid touching the tip to your eye or fingers to prevent contamination.
  • Gently close your eye for 1 to 2 minutes after applying to allow the medicine to settle evenly.
  • Store Cosmodex N Eye Drop in a cool place and do not use it after 1 month, even if it has not expired. Also, check for its expiry and never use Cosmodex N Eye Drop beyond the expiry, as the medicine can lose its potency or become unsafe.

Safety advice

Alcohol

Alcohol

No interaction found/established
Pregnancy

Pregnancy

CONSULT YOUR DOCTOR
Information regarding the use of Cosmodex N Eye Drop during pregnancy is not available. Please consult your doctor.
Breast feeding

Breast feeding

CONSULT YOUR DOCTOR
Information regarding the use of Cosmodex N Eye Drop during breastfeeding is not available. Please consult your doctor.
Driving

Driving

UNSAFE
Cosmodex N Eye Drop may cause temporary visual disturbances. Do not drive until your vision is clear.
Kidney

Kidney

No interaction found/established
Liver

Liver

No interaction found/established

Frequently asked questions

Cosmodex N Eye Drop is used to treat eye infections and inflammation, such as conjunctivitis (pink eye), blepharitis (inflammation of the eyelids), keratitis (inflammation of the cornea), and post-surgical inflammation after eye procedures.
Wash your hands before use. Tilt your head back and pull down your lower eyelid to create a small pocket. Use 1 drop in the affected eye every 1 to 6 hours, depending on the severity, usually for up to 7 days. Close your eyes gently for 1-2 minutes to allow the drops to spread. Avoid touching the dropper tip to prevent contamination.
Individuals should not use Cosmodex N Eye Drop if they are allergic to neomycin, dexamethasone, or any ingredients present in Cosmodex N Eye Drop, have viral, fungal, or tuberculosis-related eye infections, have a personal or family history of glaucoma, or have herpes simplex keratitis or other corneal viral conditions.
Always inform your doctor about all the eye medications you are using. Wait at least 5-10 minutes between applying different eye drops to avoid interactions or dilution of the medication.
You may notice relief from redness and irritation within a few hours. However, the full anti-inflammatory and antibiotic effects may take a few days to become apparent.
Cosmodex N Eye Drop may be used in children, but only under the guidance of a doctor. The dosage and frequency will be adjusted based on the child’s age and condition.
If you experience mild side effects like stinging or blurred vision, wait for them to subside. For severe side effects like eye pain, vision changes, or allergic reactions, stop using the drops and seek medical attention immediately.
You should discard the Cosmodex N Eye Drop 30 days after opening, even if there is still solution left. Using expired or contaminated drops may lead to infection or reduced effectiveness.

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Disclaimer

Tata 1mg's sole intention is to ensure that its consumers get information that is expert-reviewed, accurate and trustworthy. However, the information contained herein should NOT be used as a substitute for the advice of a qualified physician. The information provided here is for informational purposes only. This may not cover everything about particular health conditions, lab tests, medicines, all possible side effects, drug interactions, warnings, alerts, etc. Please consult your doctor and discuss all your queries related to any disease or medicine. We intend to support, not replace, the doctor-patient relationship.

Marketer details

Name: Cosmopack Pvt Ltd
Address: 46-A,Sector A Sanwer Road,Sector A,Indore

Vendor Details

Country of origin: India
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