can t sleep after b12 injection How Long Does It Take for Shots to Work Fast? Benefits of Vitamin B12 Shots

It is unknown whether MOUNJARO causes thyroid C-cell tumors, including medullary thyroid carcinoma (MTC), in humans as the human relevance of tirzepatide-induced rodent thyroid C-cell tumors has not been determined (5.1, 13.1)

Inhibiting the activity of CD38 may reduce the severity of cardiac remodeling and heart failure symptoms by diminishing myocardial hypertrophy and fibrosis, resulting in the development of CD38 inhibitors for preclinical and clinical studies

Worry about theories later for discussion

I know others do and if stored correctly out of sunlight and below 25 deg

A 2019 study found sublingual B12 supplements (aka the kind you put under your tongue) were even more effective than B12 shots