MarketplaceDry Sore MouthPosted on February 21, 2010. I just citalopram and wound / dry mouth is still there. How long will this last? It was a little over a month now. Maybe I come off it a bit faster. Is it common that it is an effect of weaning. (I know this is a common side effect when taken) Yeah, I had that. It lasted 1 week, then went away. CommentsThere are no comments.Leave a Comment | Popular My Friends |