Because you take the medication every seven days, your body eventually reaches a steady state. This means that by the time you are ready for your third or fourth dose, there is still a significant amount of the previous doses active in your system
Murugadoss, K., Varma, G., Venkatakrishnan, A
PMID 40563436
But its also what holds it back in effectiveness, especially compared to tirzepatide
It acts as a gastric and pancreatic lipase inhibitor, reducing the absorption of dietary fat by preventing the lipase-catalyzed breakdown in the gastrointestinal tract, leading to weight loss ( Currently, naltrexone/bupropion and phentermine/topiramate are the only approved combination therapies, designed to synergistically target two distinct pathways to induce weight loss ( (Early) responders and non-responders for weight loss The variability in response to anti-obesity interventions remains a significant and poorly understood aspect of weight management ( Figure 2 )
At starting doses, the smaller vials are often more cost-effective because you use the entire contents before the 28-day after-puncture expiration