b12 injection or tablets is vitamin better than B12 Injections vs. Oral Supplements: Which Is Better? Vitamin B12 Injections vs. Supplements:
Description
Nausea incidence is similar, affecting 25-35% of users on both drugs

If you are weighing a B12 shot against a full energy IV drip, the choice usually comes down to time and breadth

At starting doses, the smaller vials are often more cost-effective because you use the entire contents before the 28-day after-puncture expiration

Vitamin B12 Deficiency B12 injections or tablets Often due to low intake or absorption 3

Injections are very effective at raising blood levels of vitamin B12 and preventing or reversing a B12 deficiency