Recently, like about 4 days ago I started to take citalopram but am having rather a negative effect to it and stopped taking it starting today. Even though I didn t take it today I still felt the mood swing side effect, so I was wondering how long it would take to get out of my system/stop having an effect on me. Extra info: I am a 5'9 18 year old male with a relatively high metabolism, around 145 lbs