I was given 20mg Citalopram by my GP nearly 5 weeks ago for PND. I saw her last week and explained that it had seemed like it was starting to lift my mood within 2 weeks but then things started getting on top of me again. She advised me to stick with it for another 4 weeks before we review but now I feel nearly as bad as I did when I saw her when she prescribed then. I've been lucky enough not to have any side effects but am starting to think that they are not working. Would it be worth my while going back to see her as I don't want to go on for another 3 weeks like this as starting to feel really low. Has anybody any experiance of citalopram starting to work and then stopping again? Is it just part of how they work and will they start working again if I persist. Sorry for long post but not sure what to do.