I have shifted to Pascoe, and they are almost pain free
When Injections Become Necessary If you cant absorb B12 from food, shots are a good solution
Assessed were the inferior caval vein (which was occluded), right ovarian vein (which appears as blind vessel due to the infrarenal occlusion), and left ovarian vein (which serves as a bypassing pathway) (Vukojevic et al., 2018)
Symptoms and Signs of Excess Vitamin B12 True vitamin B12 toxicity is exceptionally rare, and when elevated B12 levels are detected, they are often asymptomatic and discovered incidentally during routine blood tests
1 2 3 "Vitamin B12, folate, and the methionine remethylation cycle-biochemistry, pathways, and regulation" (PDF)