Another treatment for constipation: 1 teaspoon of Miralax twice a day for two days and then once a day until you are confident the cat is going again. Source: the vet tech at the local pet store. Nina was severely constipated. I was told that I can also sprinkle a pinch of the Miralax on her food when I think she will need it. The miralax worked for Nina after 1 day. Nina is 10 years old and about 4 pounds.

Good luck!