Methyphobia
Methyphobia also known as Potophobia is an intense, irrational fear of alcohol. The Methyphobic individual individual may actually fear people who drink alcohol or the loss of control when alcohol is consumed. People that have this phobia will avoid any situation where they might be exposed to alcohol. As a result they will not go to parties or family gatherings like weddings or holidays.
I invited Bob but he can't come because he's scared to be confronted with alcohol, he's got Methyphobia.