"i&#039;m a 33 yo female, and this is my first time being on any kind of anti-depressant.  i&#039;ve been on lexapro 10mg for about a month now.  i noticed an immediate increase in energy, and even felt a little jittery.  the doctor said it typically takes 2-3 weeks for it to fully kick in, but some people notice a change within 24-48 hours, which was me.  i have decreased appetite and a lot of foods upset my stomach, so i&#039;m eating less as well.  subsequently, i&#039;ve lost some weight (which i like since i need to lose some!)  i feel like doing things again and actually have some sort of sex drive, which had been completely absent for a while with the depression.  i&#039;m sleeping better, and it&#039;s easier to get out of bed.  so far, so good."