why did my b12 injection bruise Bruised site with methylcobalamin : r/B12_Deficiency Does therapy shot cause bruising?

In about 1% of patients with deficiency, optic neuropathy

A preliminary clinical study with ALS patients demonstrated an improvement in their muscle electrical activity after two weeks of ultra-high-doses of B12 injections into the muscle

Prior to exposure, cells were pelleted (250 g, 5 min, room temperature), resuspended (5 10 4 in 0.5 mL), and incubated (30 min, 37 C) in AIM V serum-free medium with serial dilutions of DARA, ISA or control human IgG1 mAb (10 g/mL-100 g/mL)

For individuals sourcing either compound from unregulated online vendors, additional risks include contamination with unknown substances, incorrect dosing due to inaccurate labelling, and the use of non-sterile injection equipment, which can lead to serious infections including abscess formation or sepsis

The mean value of the steatosis score decreased significantly within both groups, although the changes were not significantly different