I was given Lexapro for out of the blue crying jags about a year and a half ago. From what I understand, the suicide thoughts are pretty much limited to teens and young people. I would suggest that you cut the pill in quarters, then a half and work your way up. That's what I did and I had very little side effects...a little hyper at first, and dry mouth which I still have. I take it in the morning to prevent insomnia. I will say all SSRI's are difficult to wean off of. You have to go very slowly and never stop it abruptly. I was never told this by my doctor and just stopped one day. Not a good idea.
This is just my opinion and I hope it works for you.
Donna