should you have b12 injections if you don't need them Best Shots in Chicago & Naperville 2026 Do You Still Need B12

Unlike oral supplements, injections bypass the digestive system, delivering the nutrient directly into the bloodstream for maximum absorption and faster benefits

If weight loss plateaus at 10mg and you tolerate the medication well, escalating to 12.5mg or 15mg may restart progress

Gastrointestinal effects lead: nausea, diarrhea, constipation, and vomiting, dose-dependent and clustered during escalation, mostly mild. Tirzepatide also produces a modest chronic heart-rate rise with a larger escalation-phase peak. Oral-contraceptive absorption can fall after starting and after each increase, so use backup or non-oral contraception for 4 weeks each time. What is known about concurrent metformin and tirzepatide use

Zepbound comes in a prefilled pen that is designed to be easy to use