I use the purina dog litter for my peke. For me it has worked wonders! She would not housebreak no matter what I did! My vet told me that since she was over 6 mos that she knew what she was doing. NOTHING worked. Then, we were going to be leaving on vacation, which I take my dogs with us, and I did not want her pottying in the RV, so I tried the litter one week before we left! It worked! She had no accidents in the RV and she does not potty in the house either. Only in her litter box or outside! I hope you have as good as luck as I did!