Posted 7/28/2008 7:06 AM (GMT -6)
When I got my B12 in small vials they were sealed and it didn't matter. But when they increased the dose, I started getting vials that held 10+ doses instead of individual ones. So once you break the seal, you have to sterilize it each time you use it. Or at least that is how I was taught. But, I survived the night, so I guess the dose was OK, I'll call my doctor or the pharmacist later today to check on what I should do with the rest of the vial.