Bickford was rushed back to the vets today with another round of constipation. He's been diagnosed with megacolon, which means the muscles of the colon are not able to push feces through efficiently. MiraLax or lactoluse alone will not help and the vet is going to put him on another medication to address that particular problem once he's through with this crisis. (He's getting an enema now and I'm waiting for the call when they're done.) Anyone else dealt with this? I have another cat with asthma, and thankfully the other 4 seem healthy for the moment.