I have not seen what the meds do to people with the disease, but after hearing what you had to say I applaud you for doing what you did!! If either of my parents had had it, I would have done the same thing! Good for you. I agree - why prolong it? It's a selfish thing to do, and only makes their misery last longer.
God bless you for having the "guts" to do this, and to do what your heart told you to do. I have a lot of respect for that. I'm sure your Dad does too. Take care. Hugs, Lee