maximum dose of b12 injections Vitamin Dosage and Frequency B12 Shots Dosage for Adults:

Symptoms include severe persistent abdominal pain radiating to the back, nausea, vomiting, and elevated pancreatic enzymes

This page covers both, with the oral route first

Many people with a deficiency describe deep fatigue, including an "afternoon crash." With infrequent dosing, blood levels can peak and then taper before the next visit

Do not take Vitamin B12 Injection if you: Are allergic to Vitamin B12, cobalt, or any other ingredients in the tablets Have hereditary optic atrophy (loss of some or most of the nerve fibers in the optic nerve) Vitamin B12 Tablets should not be used in newborns

Age and Genetic Factors : As people age, their bodies naturally produce less intrinsic factor, reducing the ability to absorb B12 from food and supplements

For higher concentrations, some protocols utilize a small percentage of DMSO or Ethanol before aqueous dilution