vitamin b12 injection how long does it last Dosage for Adults: Guidelines Benefits of Vitamin B12 Injections

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A Canadian study (published in JAMA) examined people with diabetic kidney disease who were given high doses of B12 and B6

Mishra and Chan, 2016

Aside from the positive side effects of Vitamin B12 injection, you might notice a slight vitamin taste that lasts for a minute while you are receiving the injection

If dietary sources are insufficient, however, a doctor may recommend supplementation through pills or injections, depending on the cause of the deficiency.

Once the 28-day refrigerated-use window is included, that works out to three 80 mg vials at the low 1.6 mg dose, three at the standard 3.2 mg dose, or four at the elevated 4.8 mg dose