Comment by BeetleB
In the US, in the states that have medical suicide, the problem is that you need to:
1. Administer the medication yourself
2. Be of "sane" mind at the time you do it.
3. Have a doctor certify that at the time you choose to do it, you are in unbearable pain/suffering, and there is no realistic relief from it.
This rules out dementia (especially item 2). So people here who are in early stages of Alzheimers go to Switzerland as well.