For example, if you are being treated for type 2 diabetes with medications such as metformin, your ability to absorb vitamin B12 from the digestive tract may be reduced
Titration: There is generally no need for upward titration with B-complex vitamins as one might do with certain drugs, but if a patient is frail or known to react to injections, the provider may choose to start at a lower dose (for example 0.25-0.5 mL) and then increase to 1 mL as tolerated
Drug Metab Dispos
Those Experiencing Mood Issues: Vitamin B12 plays a role in brain health, so individuals dealing with mood swings, depression, or anxiety may find that B12 shots help improve their mental clarity and mood
It skips your gut entirely
Upper Buttocks (Most Common) Shoulder Thigh Experienced doctors commonly give a B12 shot in the shoulder, but this is more difficult to do if you are just learning