Medicines & Supplements A to Z > Minoxidil


Last updated on July 3, 2019.

Overview   |   Dosage   |   Side Effects   |   Where To Buy  

GENERIC NAME: Minoxidil 


COMMON BRANDS IN HONG KONG: Regaine, Hairgrow 客高生髮靈, Regro, Hudson Moxidil Solution 哈紳生髮水

What is Minoxidil for?

Minoxidil is a vasodilator that can be used to treat hair loss / baldness. It works by dilating the blood vessels and hence more blood can reach the hair follicles, increasing the size of hair follicles and in turn stimulating the hair growth.

How to use it?

Minoxidil is available as various forms to be applied to the hair scalp.

For males, if you are using 2% / 5% solution, you should apply 1 mL to the scalp twice daily. If you are using 5% foam / aerosol, you should apply 0.5 capful to the scalp twice daily.

For females, if you are using 2% solution, you should apply 1mL to the scalp twice daily. If you are using 5% foam / aerosol, you should apply 0.5 capful to the scalp once daily.

What are the side effects of Minoxidil?

Common side effects of Minoxidil include changes in hair colour or texture, itchiness, contact dermatitis, burning sensation, and flushing.

Where to buy Minoxidil in Hong Kong?

In Hong Kong, Minoxidil is an over-the-counter medicine and can be purchased without a prescription in a pharmacy by speaking with the 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

For detailed information about the use of Minoxidil 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.