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Vitamin B12 shots: Uses, benefits, and side effects As per my latest article, if you use PPIs chronically, and you're experiencing worsening of migraine symptoms, ask your neurologist if you should try supplementing with magnesium and check your B12. B12 Injections Vitamin B12 Side Effects How Long Does It Take for B12 Shots to Work Fast? Why do I feel worse after a B12 injection: causes explained
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