Your SS noted a new Lantus bottle so I am assuming you are using the vial. I use Lev myself...but I know the Lantus manufacturers say it is good for 28 day,s although other using Lantus have gotten a bit more time out of it than that. It varies though. And i do believe many folks are using the Lantus cartidges now instead of the vials. I am wondering about the potency of this vial you have bee using all this time...
You might expect that the new vial will pack quite a punch.....
I would think you should watch very carefully once you use the new stuff. What do you think?
Maybe others will have some suggestions ..