glutathione therapy before and after Side Effects: What to Know Understanding Glutathione Injection Before and
Description
As I understand it (I'm not a scientist or medical professional)this means that the GP (possible another health professional) should have discussed the pros and cons of changing to oral treatment with you, made sure you understood the issues and got your agreement before they changed your treatment

Psychiatry, 77 (11), e1439e1446

Consult with a physician before beginning any supplement

Alternatively, perhaps sites of ER-mitochondrial contact facilitate spatially restricted exchange of glutathione as they do for other metabolites such as calcium and reactive oxygen species (Joseph, Booth, Young, & Hajnoczky, 2019)
In addition, herbs and plant extracts may induce ferroptosis

10.4269/ajtmh.20-0473 [DOI] [PMC free article] [PubMed] [Google Scholar] 263.Mosquera-Sulbaran JA, Pedreaez A, Carrero Y, Callejas D
