This medication may cause dizziness or drowsiness. Lexapro tablets are film-coated, round tablets containing Escitalopram oxalate in strengths equivalent to 5 mg. Escitalopram is a selective serotonin reuptake inhibitors. Lexapro is taken orally, as often as indicated in the prescription of your doctor. Lexapro is taken orally, as often as indicated in the prescription of your doctor.