Similarly, not enough HNMT enzyme can cause excess histamine in certain tissues
The dose of vitamin B12 injection for adults may vary depending on the problem to be treated: Treatment of mild nerve pain : the initial dose is 5,000 IU until pain resolves Treatment of intense nerve pain: the initial dose can be increased to 15,000 IU per day and reduced by the doctor as pain resolves Treatment of pernicious anemia: the dose can vary from 100 to 1000 IU per day and the treatment time varies from person to person
But taking a B12 shot isn't necessary
Vitamin B12 deficiency: Signs, symptoms, causes and consequences Vitamin B12 deficiency can manifest as severe fatigue, muscle weakness, neurological problems and anemia
This calculator helps estimate mcg to units, mL per dose, concentration per mL, and the number of doses in your vial
NAD+ injections are elective wellness services and are not intended to treat medical conditions