weekly max of b12 injections Vitamin Injection Dosage for Adults: Guidelines How Often Should I Get

You may need B12 injections if you: Have been diagnosed with pernicious anemia Have gastrointestinal issues (e.g., Crohns disease, celiac disease, or after bariatric surgery) Follow a strict vegan or vegetarian diet without adequate supplementation Are over the age of 50, as absorption decreases with age Take certain medications that interfere with B12 absorption Have chronic fatigue, memory issues, or nerve problems due to B12 deficiency

Do I need blood tests to monitor my B12 levels after starting injections

What dose should be given

The most common B12 intramuscular injection sites are the following: The upper buttocks The provider inserts the needle into the outer and upper region of the muscle

PloS One (2014) 9(7):e102438