Which of the following is not an ingredient in Cetacaine?

Which of the following is not an ingredient in Cetacaine?

• A. Benzocaine
• B. Butamben
• C. Tetracaine
• D. Sodium Bicarbonate

Answer: (D)

Cetacaine is a topical mucous membrane anesthetic that combines three ester local anesthetics to provide rapid onset and effective surface anesthesia: benzocaine, tetracaine, and butamben. These active ingredients work together to numbing the area quickly and for a suitable duration. Sodium bicarbonate, on the other hand, is a buffering agent used in some drug formulations to adjust pH, but it is not part of Cetacaine’s formulation. Because buffering agents like sodium bicarbonate aren’t included in Cetacaine, the ingredient not present is sodium bicarbonate.

Cetacaine is a topical mucous membrane anesthetic that combines three ester local anesthetics to provide rapid onset and effective surface anesthesia: benzocaine, tetracaine, and butamben. These active ingredients work together to numbing the area quickly and for a suitable duration. Sodium bicarbonate, on the other hand, is a buffering agent used in some drug formulations to adjust pH, but it is not part of Cetacaine’s formulation. Because buffering agents like sodium bicarbonate aren’t included in Cetacaine, the ingredient not present is sodium bicarbonate.