Medicines & Supplements A to Z > Ketoconazole


Last updated on 19/03/2021.

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

GENERIC NAME: Ketoconazole 


BRAND NAME(S) IN HONG KONG: Dezor, Nizoral, Ketovid, Pristine 

DRUG CLASS: Antifungal agent 

USED FOR: Fungal skin infections, seborrhoeic dermatitis and dandruff

OTHER DRUGS IN THE SAME CLASS: Amorolfine, Ciclopirox, Clotrimazole, Fluconazole, Isoconazole, Miconazole, Nystatin, Terbinafine

– 2% (cream)
– 1%, 2% (shampoo)

What is Ketoconazole for?

Ketoconazole is an antifungal agent that can be used for treating fungal infections like dandruff and seborrhoea.

How to use it?

In Hong Kong, Ketoconazole is only available in topical application, including cream and shampoo. The doses for different uses are listed below:

For fungal infections


Topical cream: apply 1 to 2 times daily to affected area

Shampoo: wet your hair and shampoo the affected area. Leave the medication in your hair for 5 minutes, then rinse with water.


For seborrhoea and dandruff


Foam: Apply to affected area twice daily for 4 weeks

Shampoo: Wet your hair and shampoo the affected area. Leave the medication in your hair for at least 12 hours, then rinse with water.


For maintenance prevention  of seborrhoea and dandruff


Shampoo: apply on the scalp once every 1-2 weeks

What are the side effects of Ketoconazole?

The common side effects of Ketoconazole are skin redness, itchiness, and irritation.

Who should not take Ketoconazole?

Anyone who is allergic to Ketoconazole or any component of the formulation.

Pharmacist Tips:

– Do not use Ketoconazole cream or shampoo on broken or inflamed skin, including scalp.
– Stop using the product if there is any skin irritation.
– Avoid contact with eyes and mucous membranes.

Common dosing schedule:
Use as per product instructions.

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

Some common medications Ketoconazole may interact with:
Ketoconazole for topical use has no significant drug interactions.

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

Where to buy Ketoconazole in Hong Kong?

In Hong Kong, Ketoconazole creams and shampoo are over-the-counter medicines which can be purchased without a prescription from any pharmacy  in Hong Kong by speaking with a pharmacist. 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 Ketoconazole 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.