I recall last year when I was having issues the psych started me on 12.5 mg. every day. Since the Zoloft 25 mg tablets are scored it is very easy to half. Even with that I experienced sleepines for almost two weeks then tried taking it at night and was not getting the relief I needed so I just quit. I am very sensitive to medications, either my system or because of my size. I'm only 5' and weight 92 lbs. so probably need pediatric doses. 😉