Items | Specifications | Results |
Appearance | Faint yellow liquid | Complies |
H-NMR identification | Conform to stucture | Conformed |
Purity(GC) | Mixture of stereoisomers≥98.0% | 98.8% |
Water | ≤0.5% | 0.32% |
Remarks | Sealed storage in a cool,dry place. |
Conclusion | The result conform to the Specification |
Hexetidine is a broad-spectrum antimicrobial agent belonging to the class of compounds known as cationic surfactants. It is effective against a wide range of bacteria (both Gram-positive and Gram-negative), fungi, and some viruses. First introduced in the 1950s, it has become a staple ingredient in over-the-counter (OTC) pharmaceutical and personal care products, primarily those designed for oral hygiene and topical disinfection.
Its key characteristic is a strong, distinctive minty odor and a bitter taste, which is often masked by flavoring agents in commercial preparations.
Key Properties and Mechanism of Action
Hexetidine works through several mechanisms to kill or inhibit microorganisms:
Membrane Disruption: As a cationic surfactant, its positively charged molecules are attracted to the negatively charged cell membranes of microbes. This interaction disrupts the membrane's integrity, causing essential cellular components to leak out, which leads to cell death.
Enzyme Inhibition: It can inhibit certain enzymatic processes vital for the survival of bacteria and fungi.
Anti-adhesive Properties: It helps prevent bacteria from adhering to surfaces like teeth and oral mucosa, which is the first step in plaque formation and infection.
This multi-target mechanism makes it difficult for microbes to develop resistance.
Primary Uses and Applications
Hexetidine's primary applications leverage its potent antimicrobial and antifungal properties:
Safety and Side Effects
Hexetidine is generally considered safe for OTC use at recommended concentrations (typically 0.1%). However, some potential side effects include:
Temporary taste disturbance or numbness of the tongue.
Mild irritation or a burning sensation in the mouth or throat.
Allergic reactions in rare cases (e.g., skin rash, itching).
It is not intended for ingestion and should be spat out after use as a mouthwash.
A notable safety point is that it is contraindicated for infants and young children due to the risk of accidental swallowing and potential aspiration.
Brand Names
It is the active ingredient in well-known brands like Oraldene and Bactidose in many countries, and is a common component in generic pharmacy-label mouthwashes and throat sprays.
In summary, hexetidine is a versatile and potent antimicrobial drug mainly used for maintaining oral health, treating throat infections, and as a topical disinfectant.
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