CPT code 96372 includes the provider's work in administering a single subcutaneous or intramuscular injection
For most patients, minimal preparation is required before receiving a Vitamin B12 shot
Without adequate B12, some patients experience persistent fatigue that reduces physical activity, slows metabolic adaptation, and increases dropout rates from treatment programs
Multi-agonist stacks like CagriSema (cagrilintide + semaglutide) involve a different class partner (amylin), which is the only validated multi-peptide fat-loss protocol to date
Injections may be more appropriate for particular causes, persistent absorption problems or clinical risks
However, the absence of large-scale human trials, FDA approval, and standardized sourcing means that patients should proceed with caution