had b12 injection but still tired How Fast Does Work How soon do you feel less after a B12 shot? Vitamin B12 A Vitamin B12

Storage & Handling

B12 Health Benefits - Relieves the body of fatigue and weakness, potentially improving stamina - Supports healthy red blood cells and is used to treat Anemia - Treats pernicious anemia - Treats sickle cell anemia - Produces energy - Assists in weight loss - Keeps you thinking clearly and fights depression - Maintains proper heart functioning - Maintains a strong nervous system - Supports DNA replication and keeps your cells and you looking younger - Protects your heart - Used to treat and prevent Alzheimer's disease - Used to prevent breast cancer More information, precautions and interactions can be found under the "About B Vitamins tab." Before taking any new medication, either prescription or over-the-counter, check with your doctor or pharmacist

Once released, B-12 combines with a substance called intrinsic factor (IF) before it is absorbed into the bloodstream

Specific dosing direction is not provided in this article that belongs in your clinical conversation with the prescribing provider