Pharma is notorious for changing the formulation just enough to acquire a new patent to restart the clock. I wouldn't be surprised if the dosage was a factor in the process.
That still presupposes a new patent with new dosage.
In this case, is there a dosage patent on ozempic’s current dosage? If manufacturers tweak ozempic’s current dose and get a patent, what’s to stop the existing dosage from being made by generics?
I could see patenting mechanism of delivery, like injections versus oral, but not the example above.