give yourself b12 intramuscular injection How to a Injection: Step-By-Step Instructions B12 Injection Dosage and Frequency:
Description
If you have any questions or concerns about what dose of B12 is best for you, talk with your doc for guidance

This includes the insulin vial and syringe or injection pen, handwashing supplies, alcohol wipes, and a sharps container for safe disposal of syringes

Duration considerations All published FTPP studies used 28-day treatment cycles
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Heffernan MA et al

Niacin/niacinamide may potentiate the effects of antihypertensive medications by causing additional vasodilation
