"after having been on lexapro (tired all the time and nearly emotionless, libido killer), zoloft (gained 30 lbs in 3 months, libido killer), effexor (ineffective and made my head sweat, libido killer), paxil (zombie, libido inhibitor), wellbutrin (allergic), i was afraid viibryd would be more of the same. i&#039;ve been on it for about 6 or 7 months and i had no side effects other than mild nausea about an hour after taking it, but it went away fairly quickly. my libido is back to normal and i still have emotions, which is great. i was on 20 mg but i started to feel the hopeless despair and irritability break through so my dr bumped me up to 30 mg (i take one and a half 20 mg tabs) three or four weeks ago. the adjustment is taking time."