[1] In practice, 1 mL (which provides the full 100 mg of B and B, etc.) is a common dose for general supplementation in deficient states, but clinicians may start with lower volumes for mild deficiencies or in smaller patients
Contraindications Diabetes patients on insulin or sulfonylureas face increased hypoglycemia risk
Clinically, it is known that magnesium supplementation relieves premenstrual problems (for example, migraine, bloating, and edema) that occur late in the menstrual cycle, and that migraine, particularly in women, is associated with deficiencies in brain and serum magnesium levels
4 Optional add-ons IV therapy, hormone optimization, and weight-loss programs when appropriate
So, injections are a more direct way to make sure your body gets the B12 it needs, while tablets might not work as efficiently because they have to go through your stomach and intestines first