I just thought that I'd update you on Sunny. The medicine he's taking is called Prazosin and he gets .5ml 3 times a day for the next 5 days. It's actually a blood pressure medicine that will help relax his bladder so he'll be able to pee better. I forgot to ask the pharmacist when I'd notice an improvement in him. I've given him the first 3 dosages and so far I haven't heard him pee or seen larger pee biscuits from him. Hopefully the medicine will kick in soon. I'll continue to update you when I can.