<unk>  (Trade names: Antabuse, Antabus) - causes an acute reaction in the presence of ethanol.
Works by inhibiting acetaldehyde dehydrogenase → buildup of acetaldehyde → unpleasant<unk> s.
Designed to assist in alcohol cessation.<unk>  itself can cause hypotension
Due to inhibition of dopamine beta-hydroxylase, which is necessary for norepinephrine production
Works by inhibiting acetaldehyde dehydrogenase → buildup of acetaldehyde → unpleasant<unk> s.
Designed to assist in alcohol cessation.
Due to inhibition of dopamine beta-hydroxylase, which is necessary for norepinephrine production
Certain other medications cause acute ethanol intolerance and similar<unk> s as<unk> 
Mechanism is thought to be the same (i.e. buildup of acetaldehyde)
Examples
Antibiotics (metronidazole, certain cephalosporins, chloramphenicol, furazolidone)
Antifungals (Griseofulvin)
Quinacrine
Mechanism is thought to be the same (i.e. buildup of acetaldehyde)
Antibiotics (metronidazole, certain cephalosporins, chloramphenicol, furazolidone)
Antifungals (Griseofulvin)
Quinacrine
Disulfiram effect
ACS/MI
Sedative/hypnotic withdrawal
Boerhaave's
Baclofen withdrawal
DKA
Transient 
Intracranial Hemorrhage