how much b12 is in the injection Compounded Methylcobalamin (Vitamin B12) Injection, 5mg/mL B12 Shots Dosage for Adults:
Description
Well look at the differences between these methods

Avoid administration immediately after meals, particularly high-carbohydrate meals

Animal-to-human amount translation is not straightforward and requires allometric scaling, and human pharmacokinetics, safety, and efficacy remain uncharacterized in published literature

Nicotinamide N-Methyltransferase: More than a vitamin B3 clearance enzyme (in Eng)
