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Hexylresorcinol (lozenges)

Hexylresorcinol (lozenges) is used to relieve sore or painful throat. Learn how to use the medication, its common side effects, special precautions to watch out for, and more.
  • Article last reviewed 26 March 2026
  • 5 mins read

What is this medication for?

Hexylresorcinol is a medication that has antibacterial and numbing effects. It is commonly found in lozenges for the relief of sore or painful throat. The antibacterial effect kills germs in the throat, while the numbing effect reduces the pain and discomfort. Sucking on the lozenge slowly releases the medication, helping to lubricate and soothe the throat. 

How should I take or use this medication?

  • Dissolve one lozenge slowly in the mouth when necessary to relieve your symptoms.
  • You may take this medication with or without food.
  • Do not swallow the lozenge directly.
  • Do not take more than the dose recommended by your healthcare professional.
  • Do not use in children under 6 years old.
  • Supervise children taking the lozenges to prevent choking, 

What should I do if I forget to take or use this medication?

  • This medication may be taken when required for a short period of time. This means that you may stop taking the medication when you no longer have symptoms.    

What precautions should I take when taking or using this medication?

Inform your healthcare professional if:

  • You are allergic to this medication or any of the other ingredients of this medication.
  • You are pregnant, planning to become pregnant, or breastfeeding.
  • You are taking any other medications, including supplements, traditional medications, and herbal remedies.
  • Your sore throat persists for more than seven days.
  • You also have fever, headache or nausea.
  • You have diabetes.

If you have any questions about this medication, please discuss with your healthcare professional. 

What are some common side effects of this medication? ​

  • Numbness of the throat or mouth
    • Avoid taking hot food or drinks right after using the medication to avoid burning your mouth.
  • Soreness of the tongue
  • Discomfort, burning or stinging sensation in the mouth  

These side effects may be temporary and reversible. If they are persistent and become bothersome, please speak to your healthcare professional. 

What are some rare but serious side-effects that I need to seek medical advice immediately? 

The symptoms of a drug allergy include one or more of the following:  

  • Swollen face/eyes/lips/tongue  
  • Difficulty in breathing  
  • Itchy skin rashes over your whole body  

If you experience any of these symptoms, you should stop your medication and see your healthcare professional immediately.  

You can also find out about drug allergies by watching these videos:

They are available in English, 中文, Melayu and தமிழ்: Drug Allergies 

What food or medication should I avoid when I take or use this medication?

Avoid taking hot food or drinks soon after taking this medication to avoid burning your mouth.

How should I store this medication?

Store in a cool and dry place, away from direct sunlight. Keep this medication away from children.

How do I throw away this medication safely? ​

Pack this medication into a black trash bag and seal it tightly before throwing into the rubbish chute or bin.

Disclaimer

Please take note that the above is not a complete list of all possible side-effects. If you have any concerns about your medication or if you have other side-effects that you think are caused by this medication, please consult your doctor or pharmacist. If you take more than the recommended dose, please seek medical advice immediately. The information provided on this page does not replace information from your healthcare professional. Please consult your healthcare professional for more information.

This article is jointly developed by members of the National Medication Information workgroup. The workgroup consists of cluster partners (NHG Health, National University Health System and SingHealth), community pharmacies (Guardian, Unity and Watsons) and Pharmaceutical Society of Singapore. The content does not reflect drug availability and supply information in pharmacies and healthcare institutions. You are advised to check with the respective institutions for such information.