Sir I have taken flunil 40 capsule from 6 months. Sir I feel tired and weakness early morning and whole day. Sir these are side effects of flunil 40 or anything else? A doctor suggest me to take b12 supplement. Suggest me there are any side effects of Vitamin b12?

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.