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They are generally harmless but can become irritated or bleed if constantly rubbed against clothing or jewelry

[DOI] [PMC free article] [PubMed] [Google Scholar] 167.Frayn KN

Nowlin 2012

Biophysical Research Communications 417 (1), 330334

Furthermore, decreased molecular weight of drugs is associated with higher drug concentrations in the CSF [104]

The short answer is that while glutathione is generally considered safe and even protective for the heart, excessive levels in very specific medical contexts or improper administration through high-dose intravenous (IV) therapy may pose risks
