Abbreviations and Acronyms used here
N stands for Nembutal. It's used in physician assisted suicide and to euthanize animals. It's about the most lethal drug there is, but also expensive (we're talking $600 for two bottles, which is what you'll need).
PPH or PePH or any variation is peaceful pill handbook.
SN stands for sodium nitrite. It's an inorganic salt.
CTb means catch the bus, which means 'to take one's life.
Exit is short for Exit International.
SS is short for Sanctioned Suicide.
OT is short for Off Topic.
OP is for for original post.
https://sanctioned-suicide.net/threads/the-sanctioned-suicide-forum-guide.9931/post-176956