Within days of taking Lexapro you will notice an incredible change in your depression symptoms. This medication may cause dizziness or drowsiness. Lexapro tablets are film-coated, round tablets containing Escitalopram oxalate in strengths equivalent to 5 mg. Do not take Escitalopram together with a monoamine oxidase inhibitor. Escitalopram helps to restore the brain's chemical balance by increasing the available supply of serotonin, Escitalopram improves symptoms of depression. Lexapro is actually an updated version of an older anti-depressant called Celexa.