you need them when you have 5 pee'ers. It it so trying, but we love then anyway.
I have not noticed any negative behaviors associated with the Prozac. However my two had aggression/social anxiety problems to begin with. Stomper was improperly socialized and Izzy I think is just plain mentally defective.
What I have noticed is they are more tolerant of each other. Also Izzy is much friendlier with me. I can now actually pet her, for the first 5 years I had her I never pet her. She does get overstimulated easy still, but it is an improvement.
Neither of them act drugged or lethargic. From what I have read these types of reactions are more common with Amitryptaline and Paxil.
In the other thread I linked to a really great article explaining each type of behavior disorder associated with inappropriate urination and then it also listed the best medication for each type of cat and what side effects are associated with the medication.
If caught early many cats can be taken off the meds once their behavior has been modified. Mine have been at it so long that I tried weaning them off after three months and the started right back up. So for me these two have to be on the meds long term.
Also, you may be able to find which of your kitties the "worse Offenders" and just treat them. The other may stop without their triggers.
I am hoping you get some relief soon. I know what it is like constantly cleaning up after pee-pee wars.