can b12 injections cause diarrhea Benefits of Vitamin Shots Vitamin B12 deficiency symptoms: Diarrhoea

We order vitamin B12 and folate testing when a person with Down syndrome we are evaluating has symptoms described above, has a lab abnormality for which follow up testing of vitamin B12 and/or folate is indicated, or the person has a condition in which deficiency is common (e.g., celiac disease)

observed that a combined administration of low doses of tryptophan (500 mg), niacin (100 mg), calcium (500 mg calcium carbonate), caffeine (64 mg), and acetylsalicylic acid (ASA) (650 mg) shortly after migraine attack resulted in beneficial effects in 9 out of 12 migraine patients (42)

reconstituted with bacteriostatic water and stored refrigerated

Why does vitamin B12 cause nausea