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A three way crossover study in 25 fasting healthy subjects was conducted to compare the bioavailability of the B12 nasal spray to the B12 nasal gel and to evaluate the relative bioavailability of the nasal formulations as compared to the intramuscular injection
But the research compounds from direct vendors are not approved for any use
Common reported effects in clinical use include mild injection site reactions with subcutaneous administration, occasional digestive changes when taken orally, and rare reports of fatigue or dizziness
If your vial contains 10 mg, you need 2 mL of BAC water
Common Side Effects Vitamin B12 injections can provoke several common side effects , which usually are mild and temporary
Requires a physician prescription
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