My vitamin B12 is 112 pg/ml. What should I take injection or tablet. As per I am pure vegetarian I think there are a risk of side effects in injection I have symptoms sometime like fast heart rate, fatigue, dizziness,vertigo, etc Kindly suggest tablets or injection with doses.

Suggestions offered by doctors on Lybrate are of advisory nature i.e., for educational and informational purposes only. Content posted on, created for, or compiled by Lybrate is not intended or designed to replace your doctor's independent judgment about any symptom, condition, or the appropriateness or risks of a procedure or treatment for a given person.