All of the GLP-1 products are self administered, unless I am mistaken, so there is always the trump card. "Hey doc, just so you know Im injecting every 5 days instead of 7 because Im getting hungry"
They still have to renew your prescription for you. If you're running out in 5/7 of a month, but only getting renewed monthly, you're just changing the granularity, not the dose.