Hofmann Degradation is seen with:
**Core Concept**
Hofmann Degradation is a metabolic pathway responsible for the breakdown of certain drugs, particularly those with an ester or amide functional group. This process involves the action of esterases or amidases, which cleave the drug molecule into smaller fragments, often resulting in the formation of a carboxylic acid and an alcohol.
**Why the Correct Answer is Right**
The correct answer is a drug that undergoes Hofmann Degradation, typically involving the cleavage of an ester or amide bond. This process is mediated by enzymes such as pseudocholinesterase or esterases, which recognize and hydrolyze the specific functional group on the drug molecule. The breakdown products of Hofmann Degradation can be either pharmacologically inactive or have reduced potency compared to the original drug.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not undergo Hofmann Degradation, which typically involves ester or amide cleavage. Instead, it may be metabolized through other pathways, such as oxidation or conjugation.
**Option B:** This option is incorrect because it is not a substrate for Hofmann Degradation. The enzymes responsible for this process, such as pseudocholinesterase, do not recognize or cleave this particular functional group.
**Option C:** This option is incorrect because it is metabolized through a different pathway, such as glucuronidation or sulfation, rather than Hofmann Degradation.
**Clinical Pearl / High-Yield Fact**
A classic example of a drug that undergoes Hofmann Degradation is succinylcholine, a neuromuscular blocking agent used in anesthesia. This drug is metabolized by pseudocholinesterase, leading to the formation of succinic acid and choline.
**Correct Answer: B. Succinylcholine.**