Best way to kill self with chemicals.

[Edmontosaurus]

Hi. I'm looking for some advice on what I could ingest that will painlessly kill me. Something I could get easily too. Thanks

 

[Minudah]

You're going to have a hard time finding something poisonous that will give you a painless death. Nembutal is considered the best but it's hard to get. Sodium nitrite is possibly the next best. Need antiemetics for