Sciencetifically speaking methods for letting a human being die

[anstonvias009]

Anyway peaps wanted to ask a question if struggle for getting and have benzos and no netoclapramide just diphenraymine will it works with sn? How about other scientific methods beta blockers etc and what about other methods? Prefarabbly no pain is the goal, and able to find medications that's purchasable not prescribed to be able and can ensure no pain preferrably throughout the whole process to have no pain physically even when fully unconsious till ones death.