Most are "compounded" medications, meaning they are custom-mixed by a pharmacy and have not gone through the FDA's new drug approval process
The dose in micrograms never changed in either case only the volume you pull to the line
Chem Res Toxicol 21:16721689 Norris RL, Eaglesham GK, Shaw GR, Smith MJ, Chiswell RK, Seawright AA, Moore MR (2001) A sensitive and specific assay for glutathione with potential application to glutathione disulfide, using high-performance liquid chromatography tandem mass spectrometry
Glutathione Therapy involves the administration of this antioxidant via IV to boost its levels in your body, promoting overall health and vitality
The payer sees it as documented functional weakness rather than a disease label