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But before you roll up your sleeves, it's essential to understand the ins and outs of B12 shots, including whether or not you need a prescription to get them

Mutations in this gene can lead to reduced levels of PLP, which can affect the metabolism of several essential amino acids or amine neurotransmitters in the brain [34]

For example, those with certain health issues or on certain meds might be at risk

So, 1000 mcg is the same as 1 mL

If you're currently on psychiatric medication antidepressants, anxiolytics, mood stabilizers don't adjust your treatment plan based on B12 results without involving your prescriber