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Vitamin B12 injections deliver the vitamin directly into the bloodstream, bypassing the digestive system
The Shoulder The deltoid muscle in the shoulder is another popular site for intramuscular B12 injections
In our experience, its one of the best B12 injection sites because its easy to reach and usually has enough fat
Needle Selection A 23 to 25 gauge needle at 25mm suits most adult deltoids
If the manufacturer, vial size, or label wording changes, ask a pharmacist or clinician to confirm that the route and concentration still match your current instructions
mg - mcg / mL - - - rounded down to whole draws Draw Reference Enter values to estimate the syringe mark
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