subq b12 injections injection subcutaneous Vitamin B12 Cyanocobalamin injection 1000 mcg Multiple-Dose Vials — Mountainside Medical Vitamin B12 Injections | Greenway
Description
While this reaction is entirely normal, it can cause mild discomfort for a few days

In addition, semaglutide can cause drowsiness and headaches 2

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When will it improve
Metformin: Commonly prescribed for diabetes, metformin can affect the absorption of B12 in the gut over time

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