This approach makes intuitive sense because the amount of incretin stimulation needed to maintain a lower weight is probably less than the amount needed to achieve that lower weight in the first place
A drug can be metabolized in the gut wall (eg, by the CYP3A4 enzyme system) or even in the portal blood, but most commonly it is the liver that is responsible for metabolism before the drug reaches the systemic circulation
They then send the prescription to a pharmacy, and the pharmacist must work through Medicares system to get the approval completed
Ding Q, Liu J, Wang Y, Kim J, Huang Z, Lee Y, et al
Diabetes Research and Clinical Practice, 161 , 108087