A friend would appreciate advice - she used 1 B12 patch (methylcobalamin 1000ug) a week ago. How soon can she test her B12 level? (We're hoping that given that it was just 1 patch, she doesn't need to wait 4 months.)
thanks!
A friend would appreciate advice - she used 1 B12 patch (methylcobalamin 1000ug) a week ago. How soon can she test her B12 level? (We're hoping that given that it was just 1 patch, she doesn't need to wait 4 months.)
thanks!
Hi Katherine_dT
pernicious-anaemia-society....
See the comment "BE AWARE" two thirds down the page