case report adverse event bpc 157 human BPC-157 Side Effects: What Research Shows How to Search for Clinical
Description
Patients with this condition or those with a family history suggestive of Lebers disease should avoid cyanocobalamin-containing products or use alternative forms of vitamin B12 such as hydroxocobalamin under careful medical supervision

I would recommend he and
40 There is insufficient evidence to suggest that B12 on its own is beneficial in depression

Some people only need an injection every few months
Typically, healthcare professionals recommend regular injections initially to correct a deficiency, followed by maintenance injections at longer intervals
FSBS 114