> Western Medicines > Bilastine


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What is Bilastine for?

Bilastine is a second-generation antihistamine that can relieve symptoms of allergic conjunctivitis and allergic rhinitis, including red and itchy eyes, sneezing and nasal congestion. Bilastine is also used to treat urticaria, an allergic skin reaction characterized by red, raised and itchy skin rash.

How to use it?

Bilastine is taken by mouth. It should be taken on an empty stomach (1 hour before or 2 hours after meal).


Symptomatic relief of allergic conjunctivitis, allergic rhinitis and urticaria
Take 20 mg once daily orally.

What are the side effects of Bilastine?

Common side effects of Bilastine include drowsiness, malaise, diarrhoea, dizziness, headache and nausea.

Who should not take Bilastine?

  • People who are allergic to Bilastine or any component of the formulation.

Pharmacist Tips:

  • This medication may make you dizzy. Avoid driving or operating machinery until you know how you respond to Bilastine.

Common dosing schedule:
Bilastine should be taken on an empty stomach. Take 1 hour before or 2 hours after food.


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


Some common medications Bilastine may interact with:

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

Where to buy Bilastine in Hong Kong?

In Hong Kong, Bilastine 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 Bilastine 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.

Brands in Hong Kong
Available dosage
  • 2.5mg/mL (Oral Solution)
  • 10mg (Orodispersible Tablets)
  • 20mg (Tablets)
Drug class
Sub class
Antihistamines (Second Generation)
Other drugs in same class
Used for: Seasonal allergic rhinitis, Urticaria
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Used for: Allergies, Hay fever, Urticaria
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Used for: Urticaria, Allergic conditions, Hay fever
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