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Not for human use
And they have no known pharmacological interactions
How do they work
How to Administer a B12 injection to Yourself There are two ways to self-inject vitamin B12: Subcutaneously, or just below the skin, and intramuscularly, which goes directly into the muscle, says Foxx
Getting a Prescription and Supplies for Home B12 Injections Obtaining B12 injections for home administration in the UK requires a valid prescription from a registered healthcare professional
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