Medicines & Supplements A to Z > Zinc Oxide

Zinc Oxide

Last updated on 19/10/2021.

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



BRAND NAME(S) IN HONG KONG: Zinc Cream, Uni-Calmin Lotion

DRUG CLASS: Antiseptics

SUB CLASS: Astringent

USED FOR: Minor burns, Diaper rashes

– 32% (cream)
– 15%, 20%, 40% (ointment)
– (lotion)

What is Zinc Oxide for?

Zinc oxide has been used in many manufacturing processes. It occurs naturally as minerals, however most zinc oxide is man-made. Zinc oxide has antiseptic properties, as well as forming a barrier on the skin to give protection from irritants. It is therefore used as a barrier cream for diaper rashes. On the other hand, it also has astringent properties to keep the applied area dry to reduce exudates from burn, and wound.

How to use it?

Zinc oxide is available as cream. Apply an adequate amount to cover a thin layer on the affected area.

What are the side effects of Zinc Oxide?

Common side effects of Zinc oxide include dry skin, skin tightness and temporary stinging.

Who should not take Zinc Oxide?

– People who are allergic to Zinc Oxide, or any component of the formulation

Pharmacist Tips:

– Zinc oxide is only used for minor burns and minor skin infections. If your situation does not get any better, consult your doctor or pharmacist.
– Avoid getting into the eyes. If it occurs, flush with plenty of water.

Common dosing schedule:
Apply a thin layer onto the affected area

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

Some common medications Zinc Oxide may interact with:
– No known significant interactions

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

Where to buy Zinc Oxide in Hong Kong?

In Hong Kong, Zinc Oxide is an over-the-counter medicine and can be purchased without a prescription from any retail outlet in Hong Kong. This includes grocery stores, convenience stores, medicine shops, and pharmacies. 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 Zinc Oxide 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.