b12 injection vs oral vitamin versus intramuscular vitamin B12 for vitamin B12 deficiency Vitamin B12 Injections Vs Oral

The 2024 NICE Guideline NG239 from the United Kingdoms National Institute for Health and Care Excellence similarly distinguishes between patients who can be managed with oral therapy and those who require intramuscular treatment

Because of this, using a pill form of the supplement creates an additional step for transferring the B12 into the bloodstream and can cause your body to absorb less of the vitamin

Clin Toxicol (Phila)

Usually 24 to 36 months , depending on storage conditions and packaging

If there is clinical improvement and if a reticulocyte response is observed, the same amount may be given on alternate days for seven doses, then every 3 to 4 days for another 2 to 3 weeks

doi: 10.2337/diabetes.51.12.3368