How long after taking an antidepressant before the side affects start?

Anonymous
I began taking Pristiq for anxiety and depression on Monday. I was warned about the side affects but so far haven't really had any. It is now Friday. Is it safe to say that I won't get side affects? I've never been on an anti-depressant before. Is there anything at all you can tell me about your experience with this medication?
Updates
+1 y
I'm also wondering if it makes sense that it's working for me already?
How long after taking an antidepressant before the side affects start?
3 Opinion