I heard that they reformulated Pepto and Kaopectate and its now not good to give to cats. Is this true?

I honestly thought that Angel eating the WM food was ok since she was at least EATING.... I hate this vet and she's got me terrified about everything. To be honest, when Angel was eating the WM food, she did have diarreah, but it was nothing compared to when the vet made me feed them kitten food only. It was when I switched to kitten food that the leaky diarreah began.