how long does the vitamin b12 injection take to work It for Shots Fast? Vitamin B12 Injection Dosage |
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Comparing options with your provider makes sense if side effects or concerns arise
While B12 shots are often available over the counter, some jurisdictions classify them as prescription medications
1 2 This is not surprising as the main source of vitamin B 12 is animal source foods, which are expensive and for cultural and religious reasons often not eaten at all
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It's important to discuss your options with a physician, try different combinations and doses to see how your body reacts, and adjust your dosages to fit your needs and your goals
