Which topical anesthetic has the lowest concentration at 0.5% and 1%, and is found in Sucrets lozenges?

Which topical anesthetic has the lowest concentration at 0.5% and 1%, and is found in Sucrets lozenges?

• A. Benzocaine
• B. Lidocaine
• C. Dyclonine HCl
• D. Tetracaine HCl

Answer: (C)

Dyclonine hydrochloride is used in oral lozenges at low concentrations, specifically around 0.5% or 1%, to provide local numbness of the throat with minimal systemic absorption. This makes it a good match for Sucrets lozenges, which are formulated for convenient, mild mucosal analgesia. Other topical anesthetics on the list are typically prepared at higher concentrations for different applications—benzocaine often at much higher percentages, lidocaine around 2% or more, and tetracaine used in settings like eye drops or dental applications with its own higher-potency profiles—so they don’t match the Sucrets formulation.

Dyclonine hydrochloride is used in oral lozenges at low concentrations, specifically around 0.5% or 1%, to provide local numbness of the throat with minimal systemic absorption. This makes it a good match for Sucrets lozenges, which are formulated for convenient, mild mucosal analgesia. Other topical anesthetics on the list are typically prepared at higher concentrations for different applications—benzocaine often at much higher percentages, lidocaine around 2% or more, and tetracaine used in settings like eye drops or dental applications with its own higher-potency profiles—so they don’t match the Sucrets formulation.