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Correcting B12 changes your metabolism and nervous-system signalling, and that adjustment itself can feel like tiredness, lightheadedness or a vague off feeling before things settle
N Engl J Med 2003
GHK-Cu is not approved by Health Canada for therapeutic use
Lastly, maintain open communication with your healthcare team, discussing any concerns or changes in your health
A recent study by our group also demonstrated that schisandrin B and 5-FU cotreatment resulted in synergistic antitumour effects by improving drug bioavailability, enhancing metabolism and attenuating MDR [128]
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