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Benzocaine is an ester type molecule used for topical (surface) anaesthesia in a variety of settings, including dental procedures, preparation for infiltration anesthesia, and pain relief minor traumas to oral mucosa. Topical anaesthetic agents such as Benzocaine penetrate the oral mucosa effectively and offer local anaesthetic activity that lasts for 10-20 minutes. The poor water solubility of Mucopain makes it safe for topical use. Local anaesthetics reversibly block nerve transmission, when applied to a limited area of the body. They bind to the sodium channels in the nerve membrane and prevent the entry of sodium ions in response to the membrane’s depolarization.