The good news is that Vitamin B12 injections are generally well tolerated
Specifically, a review of clinical trials on the use of BPC-157 has characterized it as safe both in treating inflammatory bowel disease and wound healing, noting that no events of toxicity had been reported throughout those trials [12]

These represent reported experience rather than validated clinical practice: Typical Reported Range Starting dose: 510 mg orally per day Common maintenance: 1020 mg per day Exploratory high-end: 2030 mg per day in some reports Most reports cluster around 1015 mg daily as a "standard" dose Dosing frequency varies: some take it once daily, others split into two doses Timeline to Perceived Effects Anecdotal reports suggest a variable timeline: Some users report subjective effects (improved mood, mental clarity) within 37 days Others report delayed effects after 24 weeks Some users report no discernible effects even at higher doses Effects are highly individual and may depend on baseline cognition, genetics, health status, and other factors Why 10mg Is a Conservative Starting Point The 10 mg tablet format has become the de facto standard in community use

Then, the healthcare worker will inject the Vitamin B12 injection on your upper arm, upper buttocks, or thighs in case of an intramuscular injection
Participants who received intravenous glutathione infusions experienced improved mobility compared to those given a saline solution
doi:10.3390/antiox12051094