30 ml b12 injections for humans Vitamin (Cyanocobalamin Injections) — Mountainside Medical or for certain illness or disease like anemia Methylcobalamin B12 30ml - Complete

For reliable background on vitamin B12, see the NIH fact sheet: Vitamin B12 - Health Professional Fact Sheet

But, how often depends on how bad the deficiency is and how well theyre doing

No adverse effects were observed in any of the patients during this immunotherapy [11]

The Drip IV Infusion brings personalized B12 treatments directly to you, combining the clinical precision of IV infusions with the ease of at-home service.

My rule of thumb is if the latest and most current B12 result is above the defined acceptable range then it is advisable to recommend a reduction in the frequency of the intervention

Elderly patients may be more sensitive to the medications effects and may require slower titration or lower maintenance doses, particularly if they have reduced renal function or are at higher risk for dehydration from gastrointestinal adverse effects