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While oral bioavailability is lower than subcutaneous administration, these studies established that even high oral doses maintained excellent safety profiles, though higher doses (54 mg) were associated with increased gastrointestinal discomfort
First, clean the injection area you choose with alcohol and allow it to dry
Is Vitamin B12 Supplement Advisable for Everyone
Doctors usually prescribe B12 shots for genuine deficiencies like pernicious anemia or malabsorption disorders
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