b12 vitamin injection 1000 mcg ml Cyanocobalamin Injection, USP / — Vitruvias Therapeutics or subcutaneously Cyanocobalamin Vitamin B12 Injection 1000

The numbers below come from two places: rodent studies scaled to a human size (allometric scaling) and several years of research community use reports

Common side effects include pain or redness at the injection site, mild diarrhea, itching, and swelling

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If left untreated, it can lead to Heart palpitations and shortness of breath Weakness, tiredness, or lightheadedness Pale skin Vision loss Constipation, diarrhea, loss of appetite, or gas A smooth tongue Depression Memory loss Behavioral changes Numbness or tingling Muscle weakness Problems walking not trying to give you the wobbles here!), low levels of B12 can be linked to the development of pernicious anemia, dementia, or osteoporosis