vitamin b12 tablets or injection which is better The Advantages of Injections Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine B12 Injections vs. Oral Supplements:

But the reconstituted solution should not be used beyond 28 days

While side effects are rare, some individuals may experience mild reactions like soreness at the injection site, redness around the injection site, or potential bruising

Some doctors may even prescribe B12 injections to prevent deficiencies before they start (especially if your bloodwork's numbers are on the low side).If you suffer from anemia or a B12 deficiency, you may need B12 as a treatment

After initiation and dose increases, patients should be observed carefully for signs and symptoms of pancreatitis (including persistent severe abdominal pain, sometimes radiating to the back and which may or may not be accompanied by vomiting)

A longer, dose-dependent safety picture for this whole drug family is discussed in our review of GLP-1-class side-effect and safety research