Qiu F, Chen YR, Liu X, Chu CY, Shen LJ, Xu J, Gaur S, Forman HJ, Zhang H, Zheng S, et al
Rx B12 Active ingredient per 1 mL: Vitamin B-12 (Cyanocobalamin) 250 mcg
Clinical data from the STEP trials (semaglutide's landmark efficacy studies) showed that participants maintaining semaglutide treatment reported improved physical activity levels and exercise capacity after the first 36 months

Name-Brand GLP-1s (Weg****, Moun****) Regulation: FDA-approved, clinically tested Formulation: Standardized, patented formulations Efficacy: Backed by large clinical trials Safety: Strictly regulated and monitored for safety Cost: Typically higher, often requires insurance coverage Availability: Subject to shortages, high demand Compounded GLP-1s (Tirzepatide, Semaglutide) Regulation: Not FDA-approved but prepared by LegitScript-certified compounding pharmacies Formulation: May differ in excipients and stabilizers Efficacy: Can be effective, but quality varies by pharmacy Safety: May have variations in purity and potency Cost: Generally more affordable, but insurance may not cover Availability: More accessible through certified compounding pharmacies Effectiveness & Safety Considerations Name-brand medications like Weg**** and Moun**** have undergone rigorous clinical trials to prove their efficacy and safety