Hi, Well , my sister was on Prozac quite a few years back. She lost her sexual libido but at that time she did not care - she then met her husband and went off the Prozac as she wanted a sex life. Does the effexor take away your libido? I guess it is such a personal chemistry that it is an individual thing? I just keep battling if it is worth the side effects? Thanks. P.S. Do you mean the Effexor has been sympton free? Did it decrease your appetite? I am told that Effexor does that? Thanks.