My 2 year old male cat was peeing in odd places. Then there was a speck of blood in his pee. I brought him to the vet they gave him a shot of Cefovecin . Then a Modified live virus Rabies as I was against it as cat never goes out. He was fine yesterday but today he's very lethargic and got sick. He did pee but also still tries to be in other places. They did not feel he had stones when they examined him. I guess my question is how long does it take for meds to work and possible clear up the urinary tract infection. I guess he gets the urge to pee when there is none.