Doing this can lead to a condition called discontinuation syndrome that causes withdrawal-like symptoms. They may also want to see their doctor if they are on antidepressant or antianxiety medication and have been experiencing adverse effects. A doctor will usually take a medical history from the individual. Depending on the symptoms the person is experiencing, the doctor may also conduct a physical exam to rule out other conditions. Monoamine oxidase is an enzyme that breaks down chemicals such ...