Which amide local anesthetic contains an ester group in its chemical structure?

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Prepare for the Pain Control and Anesthesia Test. Enhance your understanding with multiple choice questions, each with detailed hints and explanations. Equip yourself with the knowledge to ace the exam!

Multiple Choice

Which amide local anesthetic contains an ester group in its chemical structure?

Explanation:
Articaine is unique among common amide local anesthetics because it contains an ester linkage in its chemical structure. That ester bond means it can be rapidly hydrolyzed by plasma esterases, giving it a shorter systemic half-life than other amides. The other drugs listed are classic amides with no ester group, so they rely on hepatic metabolism and do not have this ester linkage. Therefore, articaine is the one that contains an ester group in its structure.

Articaine is unique among common amide local anesthetics because it contains an ester linkage in its chemical structure. That ester bond means it can be rapidly hydrolyzed by plasma esterases, giving it a shorter systemic half-life than other amides. The other drugs listed are classic amides with no ester group, so they rely on hepatic metabolism and do not have this ester linkage. Therefore, articaine is the one that contains an ester group in its structure.

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