It's basically Euthanasia.
It’s been very helpful for me
My mom and grandma and father in law died of bad uncle Charlie
All were not given fentanyl except maybe patch form
The go to pain relief at end of life is morphine
Pump or inhaler etc....it is the best all around because it also relaxes the dying if they are anxious
Heroin is better which is why some western nations like England use it medically
Opiates and derivatives have their use in my opinion of personal experience and empirical observation
They usually calibrate morphine pumps at end of life to prevent suicide
They have a governor on them