do you need to refrigerate bac water Water: A Clear Guide Storage, Shelf Life, and Lab Handling Pfizer Hospira Bacteriostatic Water –

Different doctors and clinics use different recipes when making their injections

In a recent review (2018) by the famous Cochrane Institute, it was reported that studies which had been published on this topic only provided very low-quality evidence that oral B12 is as efficacious as intramuscular B12

If you've had a BAD experience with B12 shots, it's most likely that you do not tolerate or convert cyanocobalamin well (see if you can verify what form of B12 was in the shot that made you react poorly, and then stay away from that specific form if you can)

Shirley A et al., (2011)

Too much doesn't necessarily work better and increases side effect risk

Compared with other chronic pain syndromes, patients with neuropathic pain report worse physical and mental health [10]