<prompt> The drug antabuse acts by-Decreasing ethanol absorptionEnhancing urinary excretion of ethanolIncreasing pulmonary excretion of ethanolBlocking metabolism of ethanol  <response>: Ans. is d i.e., Blocking metabolism of ethanol o Antabuse disulfiram inhibits the enzyme alcohol dehydrogenase. o By inhibiting alcohol dehydrogenase antabuse disulfiram inhibits the metabolism oxidation of alcohol. o Disulfiram is used in psychologically dependent but not in physically dependent alcoholics. 