(PubMed) Smith AD, Refsum H

its use must be based on a valid prescription and medical supervision Houston Chronicle+3Healthline+3Empower Pharmacy+3 How It Works: Mechanisms & Potential Benefits Semaglutide Action Semaglutide mimics GLP-1 (glucagon-like peptide-1), helping to stimulate insulin when glucose is high, inhibit glucagon, slow gastric emptying, and reduce appetite Empower Pharmacy+2Mayo Clinic+2 In clinical and observational data, semaglutide use has also been linked to favorable metabolic changes, cardiovascular benefits, and weight loss outcomes Wikipedia+3News-Medical+3PMC+3 Cyanocobalamin (Vitamin B12) Support Vitamin B12 plays essential roles in DNA synthesis, nerve function, red blood cell formation, and energy metabolism Empower Pharmacy+2Wikipedia+2 Supplementing B12 alongside semaglutide could help mitigate fatigue or nutrient deficiencies that may accompany reduced appetite or dietary changes during weight loss Healthline+2Empower Pharmacy+2 Together, the idea is that the combined injection may offer dual benefitaddressing both metabolic appetite regulation (via semaglutide) and micronutrient support (via B12)

Surgical procedures or conditions that affect the gut, such as gastric bypass surgery or celiac disease, can prevent intrinsic factors from binding to B12 and prevent the body from breaking it down before absorbing the vitamin
Each method has its benefits and is chosen based on the patients needs and the doctors assessment