can b12 injections be harmful Vitamin Injections: What You Need To Know Vitamin B12 Side Effects
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But here's what the research says.
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For active B12 deficiency, most clinicians recommend weekly or biweekly shots for the first 4 to 6 weeks, then a maintenance shot every 1 to 3 months
Dosage and Administration Administer intramuscularly twice weekly or as directed by a veterinary surgeon
