b12 injection is iv or im Sandoz Vitamin Injectable Solution - 1000 mcg/10 mL B12 Injections for Energy: Benefits

[DOI] [PubMed] [Google Scholar] 169.Wang, G

Oral administration of high-dose vitamin B 12 (1 to 2 mg daily) is considered as effective as intramuscular administration for correcting anemia and neurologic symptoms Despite many studies suggesting oral administration of vitamin B 12 to be easy, effective and less costly than intramuscular administration, debate surrounds the effectiveness of the oral route

However, we need more research in this area to figure out exactly how each substance contributes to the overall result

Research/educational use only

I also get pain in my right temple ( I wondered if it were to do with the piturity gland ) but wouldn't say I get it as bad as your experiencing mine is more of a dull ache