Medically reviewed by Sohaib Imtiaz, MD Key Takeaways Take vitamin B12 on an empty stomach in the morning or early afternoon ...

Give by IM or deep SC inj. Pernicious anemia ... Obtain hematocrit, reticulocyte count, Vit. B 12, folate, and iron levels before and during treatment. Reevaluate periodically.

Oral vitamin B12 is generally safe to take at recommended doses. If you require injectable vitamin B12, your doctor will advise on the dosage. Vitamin B12 can cause very rare but serious allergic ...

Common symptoms of a vitamin B12 deficiency include tiredness, headaches, and mouth ulcers. However, two signs appearing on ...

Forgetfulness could be a sign you have a vitamin deficiency, the doctor warns, as symptoms can often mimic dementia ...