I am sorry to hear about yours and your cat's situation.
I don't think anyone is going to be able to legally tell you how to euthanize your cat at home.
The one last thing you can do for your friend is to have humane euthanasia performed by a licensed veterinarian.
We go to great lengths in both medications and administration to make this process as painless and stress free for the animal as possible.
I am a firm beleiver that it is the last gift we can give an animal that has given us 19 years of affection.
Euthanasia is not cost prohibitive. Call your vet, tell them your medical and financial situation. Our first line in our oath is to relieve pain and suffering in animals, I am sure they will work with you.
Dr.V
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Dr. D.A. Vamvakias
Veterinarian
