hi there. i am a 35 yr old woman and have been taking zoloft for over a year and a half. i started at 50 mg, up to 100 mg, now at 150 mg. I am married with two children and i find that the zoloft helps a lot, it makes it easier to maintain an even mood. I snap less at my husband and yell less at my kids. it helps with social anxiety too, i am not the life of the party but talking to other people is a little easier.
as for sexual side effects, I was worried about that as well. when i started zoloft and as the dosage has increased, there is a period of time of adjustment i think where i am much less interested in sex, enjoy it much less, etc. but it always seems to work itself out after a while and i can enjoy it again. if your son is okay to wait it out a little he may find that it helps him and that that particular side effect goes away. as far as other side effects of zoloft, it has agreed very well with me. i am very tired at the end of the day but that may be more because of my two young kids.
hope that helps. good luck! i hope your son feels better.