Vet gave us that as well as an antibiotic on Friday. Oreo wasn't peeing but drops. They said her urine was bloody. They didn't see any crystals or stones during the ultrasound. Sent us home with 2 cans of RC urinary so to try and my other cat has the dry so she is getting that twice and wet twice. She was peeing today and last night (friday) about a donut hole size clumps. She has had 2 antibiotics doses and 2 doses of gabapentin. I skipped any Saturday as she was feeling better. Vet said as needed. Well late Saturday/Sunday morning she went in the litter box but nothing was there when I went to scoop. So I gave her some gabapentin. Would she not be able to pee because not having it? Why can't she go again? The only vet open on Sundays is 2 hours away. I have prazosin if need be. i hope she pees soon.