hi, i'm signed on under my husband's screen name here, so this is the wife for anyone who reads his stuff. i read your post, and replied b/c i am on
lexapro and do experience some "jerking" or muscle spasms like you mentioned. overall, it does not inconvenience me in anyway and the benefits of the drug have far outweighed any side effects (except the sexual ones of course but i guess your mom doesn't have to worry about that

). so, i'm no doctor, but i would say if the spasms aren't causing her any harm and the otherwise the drug is helping, i wouldn't take her off of it or decrease at all.