The Food and Nutrition Board, the National Academy of Sciences-National Research Council recommend that lactating women should consume 4 mcg of vitamin B12 daily (11)
Route-Specific Pharmacokinetics: Intravenous Route:Peak plasma levels of cyanocobalamin are attained within 1 hour for parenteral doses
Prescription and Pharmacy Fees If a prescription for Vitamin B12 is necessary and filled at an outside pharmacy, there may be an additional dispensing fee charged by the pharmacy
Other warnings Intensive therapy for megaloblastic anemia may result in hypokalemia, thrombocytosis, and life-threatening complications
Its also important to check how well the treatment is working with regular tests
Busy professionals, athletes, and others seeking reliable, convenient supplementation without daily pill regimens also find injections advantageous