Daily high doses of B12 may not likely cause harm in most people, but extremely high doses should possibly be avoided unless a healthcare professional prescribes it
It is used to prevent vitamin and mineral deficiency, to increase immunity, to prevent diseases of the digestive and respiratory systems, to stimulate reproductive function and growth, as well as to improve the condition of the hair and skin of animals.
Push the plunger slowly to administer the full dose
In fact, theres some solid research on B12 injections for the treatment of fibromyalgia and myalgia encephalomyelitis
It is recommended to use a medication take-back program if available, or otherwise to dispose of the vial in accordance with FDA guidelines (for example, by mixing the liquid with an unpalatable substance like coffee grounds and placing it in a sealed bag in the trash, if local regulations allow) rather than flushing it down the sink or toilet