utube inject vitamin b12 How to give Intramuscular Injections How To Do Vitamin B12

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[36] Vitamin B 12 deficiency is most commonly caused by malabsorption, but can also result from low intake, immune gastritis, low presence of binding proteins, or use of certain medications

If digestive symptoms or poor absorption are suspected, treatment of the underlying issue may matter more than increasing the dose, and some people may need assessment through endoscopy depending on the cause

The solution should not be used if it appears cloudy, discolored, or contains particles