A couple of things about dosage. I’m glad it’s working for you but i think there’s a misconception about the low dose—you’re not supposed to stay on it for more than a week. You may not be getting the full value (it’s a real medication not a homeopathy)
Here’s what the dosing information says:
“The 0.6 mg dose is a starting dose intended to reduce gastrointestinal symptoms during initial titration, and is not effective for glycemic control. After one week at 0.6 mg per day, the dose should be increased to 1.2 mg. If the 1.2 mg dose does not result in acceptable glycemic control, the dose can be increased to 1.8 mg.”
Regarding using it after the first dose, my understanding is that you have 30 days after it is stored outside the fridge. Here’s what the official website says:
“Use your Victoza pen within 30 days after the first day it is stored outside the refrigerator. After these 30 days, throw away your Victoza pen even if some medicine is left in the pen.”