Hello,
I’m sorry to hear about your cat. Without knowing all of the pertinent details, if you feel like you have tried and done everything (like canned food only, adding laxatives and encouraging and promoting as much activity as possible) and you are still not able to get the colon moving properly then the best option is a surgery called a subtotal colectomy (removing the colon ). It is generally agreed upon that a true mega colon cat is only treatable by this surgery.
I hope this helps and good luck.
Hello.
I have lots of information on seizures on my blog. Please go to kmdvm.blogspot.com and from there search seizures. Depending on how many your dog has had you might need a medication like keepra for this