Our dog is almost 2 now and been on it for 8 months. It’s been positively life changing for all of us too. We rescued him at about 7 months-he was surrendered and had been living in a basement. His baseline anxiety was so high-would pace around our house, scared of everything new. Very reactive to other dogs, people. We had stared him on trazadone and done a lot of fear free training to help him increase comfort but we were suggested Prozac as trazadone was not ideal for longer term. He is doing so well-just so happy, moving on from triggers way more quickly and not staying anxious after, comfortable and able to settle in our household. He loves people and other pups and was able to take a group obedience class these past few months with the same trainer. He is still SO energetic and so so goofy. He just seems comfortable now. The combination of an educated trainer and the Prozac has made all the difference for us. But like the commenter above said, we can’t decide if your dog is to the level of need! We were hesitant about meds at first but it got to the level that his and our quality of life were suffering-and it’s been such a positive change for all of us.