vitamin b12 injections side effects pain do have B12 Deficiency: Symptoms, Causes & Treatment B12 Consent Forms - Vitamin
Description
In pernicious anemia, antibodies form and begin to attack certain parts of your stomach, rendering it ineffective in absorbing vitamin B12

ELISA kits (R&D Systems, Abingdon, UK) for CCL3 (#DY270) and IL-1B (#DY201) were used and assays performed as per the manufacturers instructions
I feel like with time, I may be able to regain some degree of my intelligence, albeit likely I have some permanent brain damage from 23+ years of B12 deficiency

In rarer cases, vitamin B12 can cause more serious side effects such as an irregular heartbeat or heart palpitations, hives, and anaphylaxis

Treatment Severe thiamine deficiency can possibly kill a goat in 24 hours to a few days if left untreated

the second of which is often implicated in B12 malabsorption and the first of which is often associated with digestive system problems, malabsorption of B12 being one though not all that common
