b12 and folic acid injection Intramuscular Injections Folic Acid Injection Home Kit

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Consistently, the risk of bias assessment, revealed a moderate risk for the first 6 studies scoring three points, and high risk for the 4 studies scoring five points

People with pernicious anemia or other medical conditions affecting B12 levels

However, the rate at which the B12 is released can be a little slower meaning that if you need B12 quickly, injections will be the better option

The injection is given in the upper arm (deltoid muscle) as an intramuscular injection

This makes them just as effective as the shot, and it typically means the vitamin will be in your system within a couple hours of taking your drops