what is the name of vitamin b12 injection Cyanocobalamin (B12) 1000 mcg/mL, Multiple Dose Vial 1 mL, 25/Tray Vitamin b1, b6, and b12

The Endocrine Society has not published specific guidelines on peptide-fragment overdose management, though their 2019 growth hormone therapy guidelines provide the closest clinical framework for assessing GH-axis perturbation in overdose contexts [11]

Malignant tumors

Weekly injections for the first 4 to 6 weeks are ideal for patients who are deficient and want to build their levels up quickly

So the benefit is real, but it is indirect and it depends on whether you were low to begin with

Which Vitamin B is most likely to cause overdose effects

Seniors on these medicines should watch their B12 levels closely and might need supplements