Use U-100 insulin syringes with clear unit markings
For a balanced view, one might consult Dr
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(1991) documented that IV infusion of 2 g/m^2 raised plasma glutathione from 17.5 umol/L to 823 umol/L -- a roughly 47-fold increase -- with a half-life of approximately 14 minutes (Aebi et al., 1991)