Fred, Who Never Was a Skinny Man, Also Suffered from Cocaine

Fred, who never was a skinny man, also suffered from cocaine addiction. After deciding to clean up his life, he enrolls in an outpatient clinic, where he is treated with a drug that blocks dopamine release to help him get off of cocaine. What surprising side effect might he also see?

A) increase in hunger
B) increase in weight
C) decrease in weight
D) increase in thirst