Medicines & Supplements A to Z > Benzydamine


Last updated on 02/07/2021.

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

GENERIC NAME: Benzydamine



DRUG CLASS: Analgesics

SUB CLASS: Nonsteroidal Anti-Inflammatory Drugs

USED FOR: Pain and inflammation in oropharynx

– 0.15% (mouthwash)
– 3 mg (lozenges)
– 0.15%, 0.3% (throat spray)
– 0.5% (mouth gel)

What is Benzydamine for?

Benzydamine belongs to a class of medications called Nonsteroidal Anti-Inflammatory Drugs (NSAIDs). It works by stopping the formation of prostaglandin, a natural substance made by the body when it is injured or has an infection, which promotes pain, redness, swelling and a feeling of heat in that area. Benzydamine is used to treat pain and inflammation in the oropharynx (throat or mouth), for example sore throat, mouth ulcers and pain in laryngitis, mucositis due to radiation therapy and after dental surgery.

How to use it?

Benzydamine is available for oral pain management as mouthwash, lozenges and throat spray.

Painful inflammatory conditions of the oropharynx
Adults and children above 12 years
Mouthwash: Rinse or gargle 15 mL every 1.5-3 hours as required.
Throat sprays: 4-8 sprays every 1.5-3 hours, to the affected area.

Child 6-11 years
Throat sprays: 4 sprays every 1.5-3 hours, to the affected area.

Child 1 month – 5 years
Throat sprays:
4-7 kg: 1 spray every 1.5-3 hours, to the affected area.
8-11 kg: 2 sprays every 1.5-3 hours, to the affected area.
12-15 kg: 3 sprays every 1.5-3 hours, to the affected area.
16 kg and above: 4 sprays every 1.5-3 hours, to the affected area.

What are the side effects of Benzydamine?

Common side effects of Benzydamine include numbness and stinging sensation in your mouth.

Who should not take Benzydamine?

People allergic to Benzydamine or any component of the formulation

Pharmacist Tips:

– Consult your doctor or pharmacist before using Benzydamine if you have a history of asthma, or if you are allergic to Aspirin or other non-steroidal anti-inflammatory(NSAID) drugs.
– Do not use Benzydamine continuously for more than 7 days unless instructed otherwise.
– Benzydamine mouthwash should generally be used without dilution, but may be diluted with water if stinging occurs.

Common dosing schedule:
The usual dose is every 1.5 to 3 hours.

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

Some common medications Benzydamine may interact with:
Benzydamine has no known interactions with common medications.

Where to buy Benzydamine in Hong Kong?

In Hong Kong, Benzydamine is a medicine under supervised sales and can be purchased under the supervision of a pharmacist from any pharmacies in Hong Kong. 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 Benzydamine 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.