I started using Victoza a over a month ago, the first pen I used wen ok, but ever since, I have been getting these bubbles that are driving me nuts. I called the lab, and they exchanged the pen immediately for a new box.
I kept having the same problems after four days I opened the new one, and called the laboratory again. They sent me an expert to teach me to do it the wrong way.
So here I am 2 weeks later with the same problem. On friday they will be sending me the best, most experienced person on the field to see what's wrong (by the way, today I got another new box with new pens, because the otherones got bubbles also).
Try calling your local laboratory, because it is already expensive and they will sure help you. The phone no. is at the back of the box.
I live in Mexico, and have the pen in room temp. in a horizontal way, no shaking, no nothing, just laying there. So I don't think it's the temp.
They said I must have shaked it, but NO, I did not shaked it at all. I'll post on my blog how the visit went. :thumbup:
Good Luck!