b12 injection red color Vitamin B 12 Cyanocobalamin 1000MCG/mL 30 mL MDV B12 injection hi-res stock photography

Target: 5 mg once daily or 2.5 mg twice daily (BID)

The only thing that can reduce BAC is time, as the body needs to metabolize the alcohol

Use the #Berryman B-12 Chemtool Fuel System Cleaner on every 3rd tank to make your engine run cleaner and meaner than ever before

If the GP says that she doesn't have macrocytic anaemia so doesn't need this pattern of treatment, you could point out that NICE guidelines for B12 deficiency say that "Note: clinical features of vitamin B12 deficiency can occur without anaemia and without low serum levels of vitamin B12." cks.nice.org.uk/topics/anae

Technically yes, but it is strongly discouraged for multi-dose vials