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In the laboratory study Ascorbate in pharmacologic concentrations selectively generates ascorbate radical and hydrogen peroxide in extracellular fluid in vivo (Chen and colleagues, Proceedings of the National Academy of Sciences, 2007), pharmacologic ascorbate acted as a prodrug that formed hydrogen peroxide in the extracellular space but not in blooda route-dependent effect that oral dosing did not reproduce

These figures are illustrative reference numbers, not approved human dosing

The FDA will make the final decision, and any formal change would require a lengthy public rulemaking process before compounding pharmacies could legally dispense BPC-157 to patients

A rigorous 2026 UK evidence review covering the Read the full review Neuroscience 23 April 2026 Dihexa for Long COVID Brain Fog: Neuroinflammation & Synaptic Pruning (2026) Can Dihexa help Long COVID brain fog

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