I am a healthy female, age 81 years. I have been taking 5mg. daily of Lexapro for more than a year for mild depression. Recently, I have noticed increasing drowsiness. For more than 6 months, I often have had difficulty falling asleep. This afternoon, it occurred to me that one of my 4 meds may have something to do with these symptoms. I also take each am, Losartan 50mg, amlodipine 2.5mg, escitalopram oxalate 5mg. Upon arising, I take levothyroxine sodium 50 mcg.