As you wait for your B12 to arrive, visit a pharmacy to buy sterile saline (NaCl 0.9%) and a bag of 0.3 ml insulin syringes
Originally used for diabetes and sold under the name Ozempic
If the headaches are part of the body adjusting to the medication, they may persist intermittently for the first couple weeks, particularly after dose increases. In general, though, most headaches are temporary and tend to resolve within a few hours to a couple of days, he adds
This guide explains what half-life means in practical terms, why semaglutide is designed to stay in your system longer than many medications, what happens during and after the clearance process, and why this timeline matters for various situations
doi:10.1001/jamahealthforum.2024.3685 Kommu S, Whitfield P