Interesting thought…maybe, but then they wouldn’t have had suspect that CrazyJack would use the pill on himself.
Yes I completely agree with you and Beck’s Dark is my favorite import.
I don’t think this is the case but I did think that perhaps the pill was poisonous for Jack but not for whatever Sayid is becoming.
Could be that the Poison would only eradicate the infection/claimed by some Island Ghost and leave Sayid unharmed.