Every vial must be discarded after one use, even if water remains inside
Some are stable at room temperature, while others need refrigeration to preserve their potency and safety
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What are the common US prescription formulations for vitamin B12 injections
The most common symptoms include fatigue, pale or yellow skin, difficulty concentrating, headaches, gastrointestinal upset, depression, and numbness or tingling in the hands or feet
Because these injections are delivered into the muscle, they are absorbed more directly and predictably than oral supplements