Mood swings, anxiety, irritability, confusion and agitation can occur when a person stops taking Lexapro suddenly, according to Everyday Health. Physical symptoms may include headache, dizziness, numbness or tingling in the extremities, fatigue, and sleep difficulties.
About 20 percent of people who stop taking anti-depressants, such as Lexapro, experience discontinuation symptoms within a few days, explains Psych Central. Before someone stops taking Lexapro, he should consult with his doctor to plan a gradual dose reduction over a period of two weeks or more. Someone who has taken high doses of Lexapro for a long time may need a lengthier discontinuation plan.