Dennis is undergoing treatment to deal with his alcohol use disorder.Whenever he takes this drug, he can't even have one alcoholic drink because he starts to feel sick and dizzy and feels like vomiting.Which drug is he most likely using?

A) Naltrexone
B) Antabuse
C) Halcion
D) Xanax

The drug that is described in the scenario is Antabuse. It is a medication used to treat alcohol use disorder and creates unpleasant side effects if the person taking it consumes alcohol. This is a way of discouraging alcohol consumption and promoting sobriety. Naltrexone is another medication used to treat alcohol use disorder, but it works by reducing cravings for alcohol. Halcion and Xanax are both benzodiazepines used to treat anxiety and insomnia, not alcohol use disorder.