Lysozyme

What is Lysozyme?

Lysozyme is an over-the-counter medication widely used for its antimicrobial and anti-inflammatory properties to manage minor oral and throat conditions.

As an enzymatic protein typically extracted and purified from egg whites, it differs from traditional chemical antibiotics by directly breaking down the cell walls of certain bacteria.

Generic Names:

• Lysozyme: Widely used globally as a generic enzymatic treatment.
• Muramidase: An alternative biochemical name used in some clinical contexts.

Global Brand Names:

Lysozyme is available under several common brand names globally.

• Leftose: A widely recognised brand available in various regions.
• Likinozym: An alternative formulation available in select markets.
• Neo-Lysozyme: Commonly distributed in pharmacies.

These names all refer to the same medication. It is important to note that while the active ingredient is the same, different countries may have different regulations and available medication formulations.

What is Lysozyme used for?

Lysozyme is used to relieve:

• Oral ulcers.
• Throat infections and inflammations.
• Symptoms of dry mouth.

How do you use Lysozyme?

Availability:

• Tablets
• Lozenges
• Oral sprays
• Toothpastes and mouthwashes

Dosage Information:

• Adults: Take 60 mg to 270 mg daily in 3 divided doses for tablets, or one lozenge every 2 to 3 hours.
• Children: Safe use should be under the guidance of a paediatrician.
• Elderlies: Dosage generally remains the same, but always consult with healthcare providers as elderlies may be on multiple medications.

Suitability:

• Adults: Yes.
• Elderlies: Yes.
• Children: Yes, under supervision.
• Pregnancy and Lactation: Yes, but should be used only if clearly needed and directed by a healthcare provider.

Who cannot take Lysozyme?

• Adults with a known allergy to Lysozyme.
• Individuals allergic to eggs or egg products.

Allergies and unsuitability:

• Allergic reactions are possible in individuals sensitive to egg proteins.

Warnings and precautions:

• Do not use if allergic to eggs to avoid the risk of severe hypersensitivity.
• Consult a healthcare provider if symptoms persist.

Interactions and contraindications:

• Check with a doctor if taking other antimicrobial drugs to avoid possible additive effects or antagonism.

Conditions where the drug should not be used:

• Known allergy to Lysozyme.
• Egg allergy.

Lysozyme is generally well-tolerated when used appropriately. Adverse reactions are primarily associated with allergic responses in individuals who are sensitive to egg products. Severe side effects are uncommon but require immediate medical attention if signs of a severe allergic reaction occur.

Warnings and precautions:

• Do not use if allergic to eggs to avoid the risk of severe hypersensitivity.
• Consult a healthcare provider if symptoms persist.

Interactions and contraindications:

• Check with a doctor if taking other antimicrobial drugs to avoid possible additive effects or antagonism.

Conditions where the drug should not be used:

• Known allergy to Lysozyme.
• Egg allergy.

Storage information:

• Keep in a cool, dry place away from direct sunlight.

Handling instructions:

• Ensure the container is sealed properly after each use to maintain the effectiveness of the enzyme.
• Use within the drug's expiry period.

Where is Lysozyme available in Hong Kong?

Lysozyme is an Over-the-Counter (OTC) medication. This means it can be sold freely without a prescription.

It is found in all general chain drug stores, including Mannings and Watsons.