Alcohol dehydrogenase capsule is a kind of capsule composed of alcohol dehydrogenase. The system name of alcohol dehydrogenase (ADH) is ethanol: NAD+ oxidoreductase, which exists in human and animal livers, plants and microbial cells. It is a zinc-containing metalloenzyme with wide substrate specificity. Alcohol dehydrogenase takes nicotinamide adenine dinucleotide (NAD) as coenzyme, which can catalyze the reversible reaction between primary alcohol and aldehyde. In humans and mammals, alcohol dehydrogenase and acetaldehyde dehydrogenase (ALDH) constitute an alcohol dehydrogenase system, which participates in the metabolism of alcohol in the body and is an important metabolic enzyme in humans and animals. As a key enzyme of short-chain alcohol metabolism in organisms, it plays an important role in many physiological processes. It is a zinc-containing metalloenzyme with wide specificity. Alcohol dehydrogenase ethanol oxidation system is the main way for liver to metabolize ethanol. The oxidation system of alcohol dehydrogenase includes alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH). The oxidative metabolism of alcohol in human body depends on the physiological activities of alcohol dehydrogenase and acetaldehyde dehydrogenase. The former removes two hydrogen atoms from alcohol molecules and oxidizes ethanol into acetaldehyde; The latter removes two hydrogen atoms from acetaldehyde, oxidizes acetaldehyde into nontoxic acetic acid, and finally decomposes it into carbon dioxide and water. Hong Kong Hao Di Alcohol Dehydrogenase Capsule can supplement alcohol dehydrogenase, so that the human body can decompose more alcohol, but it can't make thousands of cups drunk. On the contrary, even if alcohol dehydrogenase capsules can decompose alcohol, they only increase the speed of ethanol oxidation to ethyl acetate, and the accumulation of ethyl acetate will increase the damage to the body and accelerate the drunkenness.