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how to give a b12 injection in the deltoid muscle is a common method for administering intramuscular medications, such as vaccines or certain medications. deltoid muscle is located the upper arm and is easily Instruction Guide for Intramuscular (IM)
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doi: 10.1038/nchembio.1204

Weekly IM administration is sometimes recommended in more severe cases

Carnitine metabolism in the vitamin B-12-deficient rat

B12 is crucial in converting food into glucose, which your body uses for energy

Whether tablets or injections are needed will depend on the cause of the vitamin B12 deficiency and whether there are any complications, such as anaemia or nerve problems
