Escitalopram is an SSRI, and is widely over-prescribed for many different issues it's not even intended to solve. It alters brain structure within 12 hours of the initial dose, and despite all the bullshit that your doctor will give you it's not safe. I would recommend looking into phenibut for sleep or anxiety related problems, as long as you make sure to do proper research on it (even though it's less dangerous than Lexapro IME). Good luck!