Fluoxetine never worked for me, the side effects from that were worse than the peri symptoms ! I had terrible vivid dreams/nightmares, sleepless nights, unbelievable thirst and permanent 'brain fog', I broke so many cups (accidentally) and walked into so many door frames.
However, it does work for some and is worth trying it out, its easy enough to come off if you're on a low dose.
I'm not sure about other alternatives though, sorry x