BPC-157 is not an approved medicine
These were used to plot concentration-response curves, which were analysed using a three-parameter logistic equation
The problem is that promising biology isnt the same as proven medicine
The concern that allergy shots, which modify the immune systems response to allergens, could potentially trigger an autoimmune disease is understandable given that autoimmune diseases occur when the bodys immune system mistakenly attacks healthy tissue
Vitamin B12 Injections: What You Need to Know Vitamin B12 Injections deliver a concentrated dose of B12 directly into the bloodstream, bypassing the digestive system entirely

The following conditions can cause absorption to be inadequate: Overgrowth of bacteria in part of the small intestine Impaired absorption (malabsorption disorders such as celiac disease or certain pancreatic disorders) Inflammatory bowel disease affecting the last part of the small intestine (IBS) Surgery that removes the part of the small intestine where vitamin B12 is absorbed Drugs such as antacids and metformin (used to treat diabetes) Repeated exposure to nitrous oxide (laughing gas) Lack of intrinsic factor Decreased stomach acidity (common among older people) Intrinsic factor may be lacking because abnormal antibodies, produced by an overactive immune system that attacks and destroys the stomach cells that produce intrinsic factor (An autoimmune reaction called autoimmune metaplastic atrophic gastritis.) Intrinsic factor may be lacking because the part of the stomach where intrinsic factor is produced was surgically removed