I know this isn't recommended, but I am happy to use pen after the 4 weeks (kept in fridge) but I am currently on 10mg and plan on staying here for the last stone left to lose.
Has anyone bought a 15mg pen, and then used it 7 times at 10mg each dose (using syringes for the last few doses)
This would save me a considerable amount of money. It wouldn't be the full seven weeks as I would likely inject every 6 days.
So, my question is has anyone used the same pen for approx 6 weeks?