gen white glutathione review Injection: Benefits, Safety, & What To Expect Glutathione and glutathione-dependent enzymes: From

Inflammatory conditions requiring the use of corticosteroids

10.21273/HORTSCI.39.3.571 Wang D., Nanding H., Han N., Chen F

Sodium nitrite administered orally or intraperitoneally to pregnant rats produced peak fetal sodium nitrite blood levels ranging from trace amounts, with a 2.5 mg/kg maternal dose and a corresponding maternal blood level of 3.9 mg/l (56-52 mol/l), to 9.4 mg/l (136.23 mol/l) with a 30 mg/kg maternal dose and a corresponding maternal blood level of 32.5 mg/l (471.01 mol/l) (Gruener et al., 1973)

I don't see how you are getting that only 5mcg is lost daily: if you have injected say 1000 mcg of B12, most of it is peed out within a few days

The effects of N-acetyl cysteine on nasal mucociliary clearance in healthy volunteers: a randomized, double-blind and placebo-controlled study