My Yoshi has been on Fluoxetine Liquid for years now, and only every once in a great while will he slip up and pee.

But I always know when it will happen - like last week, we had a house guest for most of the week and I was also out of the house more than often, so that is when he will pee.

Poor guy, he doesn't like change or upset in his life!

We also have the Feliway plugs going 24/7 I think it helps.

Good luck!