hello.
for Vit B 12 deficiency.
Take Inj Neurobion Forte RF
1 inj on alternate days x 10 days. you can take allergic test before inj.
Than oral tab with B 12 and Folic acid.
Tab Cobal vit Forte 1 cap x 1 day x 7 days.
Next Steps
check CBC after 15 days.
To prevent B 12 deficiency drink at least 500 ml of cows milk a day or atleast 250 ml ( glass of milk ) a day will give you half of daily need of B 12 vit.
if you are non vegetarian - 1 egg a day is very good source of cobalamin ie B 12.