In rare cases, some people might have severe side effects like: Skin rash, itching, or hives Swelling of the face, lips, or tongue Chest pain or tightness Blue tint to the skin Difficulty breathing or wheezing A swollen, painful area on the leg Dizziness If you experience any of the above side effects, reach out to a healthcare provider immediately
Clinical practice
Streamlined bulk fulfillment We offer volume pricing and consistent supply for orders of 200+ vials or recurring shipments
Other reported effects include: Headaches and dizziness Nausea and gastrointestinal discomfort Allergic reactions to B12 formulations (rare) If you experience symptoms suggesting a severe allergic reaction (difficulty breathing, severe rash, swelling of face/throat), seek emergency medical attention immediately by calling 999 or attending A&E
B12 injections can treat these issues by helping the body make healthy red blood cells again, improving energy levels, and addressing symptoms caused by the deficiency
What the Injection Contains A typical compounded weekly dose includes semaglutide titrated from 0.25 milligrams up to 2.4 milligrams over 16 to 20 weeks, plus 1,000 micrograms of methylcobalamin