b12 injection cyanide Vitamin - We Come to You — ASAP IVs Hydroxocobalamin - Wikipedia

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Proponents of B12 shots claim they turbocharge the metabolism (read: make you thinner), strengthen the immune system, and help cure fatigue, insomnia, even depression

However, the modest efficacy demonstrated in clinical trials indicates that AOD-9604 is not a standalone dramatic weight loss solution

Vitamin B12 plays a role in the production of serotonin, a neurotransmitter that affects mood and appetite

Peripherally, pancytopenia is most often observed, but only 12 of the major cell types (erythrocytes, leukocytes, platelets) may be depressed in some cases

Key takeaway: Suggests potential use in preventing fat accumulation