Which of the following pharmaceutical treatments for obesity anesthetizes the tongue, reducing taste sensation?

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Benzocaine is a local anesthetic commonly used in over-the-counter products such as sore throat sprays and teething gels. It can also be used as a pharmaceutical treatment for obesity by anesthetizing the tongue, reducing taste sensation, and potentially decreasing food intake. Phenylpropanolamine and ephedrine are stimulants that suppress appetite but have been banned in many countries due to their adverse effects. Bitter orange extract is a natural supplement that contains synephrine, a stimulant that may increase metabolism and reduce appetite, but its effectiveness and safety are still under investigation.

Which of the Following Pharmaceutical Treatments for Obesity Anesthetizes the Tongue