Purpose of FitShot Injection HomeKit at VITAstir Clinic Vitamin Injections B12 Shots IV Therapy Calcium Gluconate and Vitamin D3 & B12 Injection Best Price for Animal Health Compounded Vitamin B Complex Injection Empower Pharmacy Hi I bought the B12 injectable liquid but there's no use by date on it or how long you have to use it once it's opened. Anyone know the answer? TIA x Buy Vitcobin 500mcg Injection Online: View Uses, Side Effects, Price, Substitutes 1mg Delighted I received my B12. I don't see a use by date on them or am I missing it?