The answer depends on whether youll inject subcutaneously (SQ) or intramuscularly (IM)
[73] As noted above, the completely synthetic laboratory synthesis of B 12 was achieved by Robert Burns Woodward and Albert Eschenmoser in 1972, though this process has no commercial potential, requiring more than 70 steps and having a yield well below 0.01%
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Typically, B12 injections contain a higher concentration of the vitamin compared to oral supplements to ensure adequate absorption
If left untreated, it can cause irreversible damage to the brain, spinal cord, heart, and other organs
Jumping straight to the stack skips the dose-response curve for the better-studied compound and makes it impossible to attribute outcomes or adverse events to a specific agent