Medicines & Supplements A to Z > Neomycin


Last updated on 19/03/2021.

Overview   |   Dosage   |    Side Effects   |   Precautions  |   Tips  |   Where To Buy  



BRAND NAME(S) IN HONG KONG: Betnovate-N 裨乃膚-N (contains Neomycin and Betamethasone), Maxitrol (contains Neomycin, Polymyxin B and Dexamethasone), Neomycin Christo (contains only Neomycin), Polydexa 保耳靈 (contains Neomycin, Polymyxin B and Dexamethasone), 

DRUG CLASS: Topical antibiotic

USED FOR: Skin infections, eye infections, outer ear infections

OTHER DRUGS IN THE SAME CLASS: Bacitracin, Fusidic Acid, Gramicidin, Framycetin, Mupirocin, Polymyxin B, Silver Sulfadiazine


What is Neomycin for?

Neomycin is an aminoglycoside antibiotic and is used for treating bacterial infections, including otitis externa (inflammation of the external ear canal), bacterial skin infections, and bacterial eye infections.

How to use it?

Neomycin is an ingredient in many different products that can be used on the skin, in the eye, or in the outer ear.

The dosages for otitis externa (inflammation of the external ear canal) vary between different products and you may need to refer to the product label.

If you are using it for bacterial skin infections, you can apply Neomycin to the skin up to 3 times daily but it can only be used for short-term. This dosage applies to both children and adults.

For bacterial eye infections, If you are using eye drops, you should apply 1-2 drops into the conjunctival sac(s) 4-6 times daily and gradually decrease the frequency once inflammation is resolved. If you are using eye ointment, you should apply a small amount into the conjunctival sac(s) 3-4 times daily or as a supplement to the eye drops at bedtime.

What are the side effects of Neomycin?

Neomycin can cause allergic contact dermatitis.

Who should not take Neomycin?

People who are allergic to aminoglycosides.

Pharmacist Tips:

Since Neomycin is indicated for infection, remember to clean your hands before applying the cream or using eye/ear products.

Common dosing schedule:
Apply topical Neomycin as per product instructions for otitis externa.
Apply up to 3 times daily for bacterial skin infections.
Apply 4-6 times daily for bacterial eye infections.

This schedule is for reference only, adjustments may be made according to individual needs.

Some common medications Neomycin may interact:
– Non-steroidal anti-inflammatory drugs, e.g. Ibuprofen, Ketorolac, Mefenamic Acid

Please notify your doctor or pharmacist if you are taking the above medication, dosage adjustments might be needed.

Where to buy Neomycin in Hong Kong?

In Hong Kong, Neomycin is a prescription only medicine, and requires a prescription from a doctor to be purchased in a pharmacy. It can also be obtained from doctors. To find a pharmacy near you, refer to the list of pharmacies (“Authorized Sellers of Poisons”) from the Hong Kong Department of Health.

For more information about drug names and ingredients, you can visit Hong Kong’s Drug Office at

Need more information?

For detailed information about the use of Neomycin in children, pregnancy and breastfeeding, and for questions about drug interactions, please check with your pharmacist or doctor.

Disclaimer: our goal is to provide you with the most relevant drug information and common dosage for Hong Kong. This information does not constitute medical advice. For specific treatment recommendations and advice, always discuss with your doctor or pharmacist, and follow the instructions included with your specific medicine.