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glutathione peroxidase reduction of hydrogen peroxide Peroxidase-1 in Health and Disease: From Molecular Mechanisms to Therapeutic Opportunities 1: Detoxification of oxidizing species.
Description
This indicates that you may need more frequent injections especially when you get to the 3 month maintenance injections

For active B12 deficiency, most clinicians recommend weekly or biweekly shots for the first 4 to 6 weeks, then a maintenance shot every 1 to 3 months

However, they dont work for everyone

Taken together, these reactions form the WWC, in which two electrons are used to produce H 2 O 2 and two more electrons are required to metabolize H 2 O 2 to water (Fig
