TB-4 The July 23, 2026 PCAC recommendation covered TB-500, not the full-length TB-4 used in GLOW
For diagnosed deficiency, weekly for 6 to 8 weeks, then biweekly, then monthly maintenance based on follow-up labs
Loading phase: If you are low, treatment often starts with a series of injections (for example, once a week for several weeks) to replenish your body's stores
Because vitamin B12 helps the body produce brain chemicals that can affect mood and cognitive functions, a deficiency may lead to anxiety or depression
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