I am sorry to hear that the Proin didn't do the whole trick for him. At least at his age a diapper is not an unusual thing although I still feel for him. How much was he on at first....right now I give GiGi 1/8 tablet once a week. I am still in the process of adjusting tothe right amount. She is doing well on it but with this amount so far about once a month she has a tiny accident. She ahs been on it since early September. At first the vet had her 1/8 tablet 2x a week and said to adjust as needed if ithis medication worked and it did. At first she did so well I took her off it all together...she was good for a week and a half....so I went to 1/8 tablet per week because I didn't want to stress her and felt I was doing more harm than good not giving "enough" med.
How old is he now? I hope he is doing well...diapers are not so horrible
Tina