Reading this thread has been an education for me!!! I have NEVER heard of chylothorax before!! But, I had a friend that was having problems give her cat a heart med, and she had it compounded. Best bet would be to ask your vet about this. They are in Delaware and there is a place there that compounds meds. Drs. Foster& Smith catalogue offer the service,too!! I hope that helps!! Thanks for the learning experience!!!