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Cycling with breaks of 2-4 weeks between protocols may help maintain response
Self-administration is not advised
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So, we recommend using SL vitamin B12 rather than oral and IM, especially in patients who do not tolerate IM injection and patients who need prolonged vitamin B12 supplementation, such as patients with long-term metformin use and patients with pernicious anemia or with gastro-duodenal resection [51,52,53,54]
Nitric oxide helps the blood vessels maintain their flexibility so that the blood flow is unrestricted
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