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A common protocol for this stack involves daily injections for up to 30 days
Table of Contents: What are B12 shots used for
TREATMENT LENGTH A fast, comfortable 5-minute intramuscular (IM) injection
Sleepwake cycle In the 1990s, a number of trials were carried out into the effects of B12 on circadian rhythm and the sleepwake cycle, but no more recent studies have been published on this topic
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