walgreens vitamin b12 injections Nature's Bounty B-12 5000 mcg, Quick Dissolve Made in China American Regent Cyanocobalamin Injections |

Sezer, R

human bioavailability is unknown Subcutaneous injection Human subcutaneous bioavailability and pharmacokinetics are unknown Factor Convenience Oral capsules No mixing or syringe math Subcutaneous injection Requires reconstitution, sterile supplies, and injection-site planning Factor Evidence limits Oral capsules No controlled human dose, benefit, or safety trial Subcutaneous injection No controlled human dose, benefit, or safety trial Factor Can the amounts be treated as equal

What are the primary causes of vitamin B12 deficiency

Vitamin B12 deficiency can also be found in people with poor nutrition, infection, cancer, anemia, stomach/intestinal problems and/or nerve damage