PUGNAc is a drug, acting as an inhibitor of N-acetylglucosaminidase and so increasing insulin resistance. PUGNAc was used by Michael Scofield to keep his blood sugar level high, in order to appear both diabetic and resistant to insulin.
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PUGNAc
Michael meets C-Note in the showers to retrieve his PUGNAc
C-Note empties the PUGNAc capsule
PUGNAc container