> Western Medicines > Dextracin


Used for: Inflammatory bacterial eye infections, Inflammatory bacterial ear infections
Chinese name:

What is Dextracin?

Dextracin is a brand medication that contains Neomycin and Dexamethasone, which belongs to the classes of antibiotics and steroids. They work together to treat bacterial infections of the eye and ear, and in particular those with inflammatory conditions.

How to use it?

Dextracin is available as eye/ear drops. 


For bacterial infection in both eyes, apply 1-2 drops every one or two hours initially until improvement is seen, then followed by 1 drop every 4 hours, down to 1 drop three times a day.


For ear drops, apply 3-4 drops into the ear two to three times a day. Slowly reduce dosage frequency and eventually discontinue when symptoms are resolved.

What are the side effects of Dextracin?

Common side effects of Dextracin include eye-stinging or blurred vision when applied to the eyes, ear discomfort and local skin irritation when applied to the ears.

Who should not take Dextracin?

  • People who are allergic to any component of Dextracin.
  • Patients with glaucoma
  • Patients with any defects in eye vision

Pharmacist Tips:

  • Complete the whole course of antibiotics to prevent the risk of antibiotic resistance.
  • It is advised to not wear contact lenses while on the antibiotic treatments. If you do need to apply other types of eye drops, apply at least half an hour after the application of Tarivid.
  • As applying eye drops may cause blurred vision, do not drive or operate machinery immediately until vision becomes clear.

Common dosing schedule: 
Apply 1-2 drops every 2 hours then gradually reduce the frequency and discontinue when symptoms are resolved.

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


Some common medications Dextracin may interact with:

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

Where to buy Dextracin in Hong Kong?

In Hong Kong, Dextracin 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 https://www.drugoffice.gov.hk

Need more information?

For detailed information about the use of Dextracin 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.

Available dosage
  • (Eye/Ear Drops)
Drug class
Antibiotics, Corticosteroids
Sub class
Glucocorticoids, Aminoglycosides
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