Good Morning,"The sole manufacturer of Prozac was Eli Lilly and Company until it's exclusivity patent expired in 2001.
Generic fluoxetine (Prozac) is now available through multiple manufacturers.
Comparator generic drugs must be rigorously tested before receiving FDA approval. One would hope that the variability that may exist between the brand and generic product does not significantly change patient response."
You can read the whole article at this link:
http://www.currentpsychiatry.com/articles/commentary/article/is-prozac-more-effective-than-generic-fluoxetine/7571e3cc365cb5225378d0d5657aaf32.html
I have been on generic as well as brand name of a med and have always tolerated the switch.
Hope this helps you understand how things work and if you still have concerns, do talk with your Dr.
Kindly,
Kitt