"i had postpartum depression after my son was born. my doctor gave me lexapro said to try and stick with it for 1 year. i felt so much better after the 1st week of taking it. my son is now 5 months old and i&#039;ve been taking it for 4 months already. i feel like it doesn&#039;t work anymore. i feel the depression on and off. what they say about the side effects is true. i have no interest in having sex, i have gained 10lb over a period of 4 months and can&#039;t lose them no matter how hard i try. "