stopping vit b12 injections Vitamin Injection at a Licensed Pharmacy Vitamin B12 injections offer several

With oral supplements, it can take weeks to feel a difference, especially if digestion is compromised

You should start to see improvements within a few days to a week, however if you do not feel the effects after 2-3 injection sessions, then it is likely that you were and are not deficient in B12

Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect: Signs of an allergic reaction, like skin rash, hives with itching and red swollen blistered peeling skin with or without fever, wheezing, tightness in the chest or throat, trouble breathing, trouble swallowing, trouble talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat

For a safer comparison, read: Are GHK-Cu Injections Safe Enough

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