Olanzapine makes me sleepy. I take 5 mg in the morning and 10 mg at night. Lybalvi which is Olanzapine and something else mixed together like knocked me out. I have no experience taking Lexapro with Olanzapine although I think I was on Lexapro years and years ago. Like the first thing my GP put me on when I started going to her. But she sent me to a pdoc and they switched me off of it. I don't remember why. HUGS if wanted, Kit