They share an active ingredient and very little else: regulatory status, trial evidence, delivery and price all differ. Here is the honest comparison, and how to decide which one fits your situation.
Switching is one of the most common changes Harbor's clinicians manage, and it does not mean starting over. Here is the standard approach, what the first weeks usually feel like, and how to keep your routine steady while the new medication builds.
Semaglutide has reshaped the landscape of medical weight loss. Clinical trials demonstrate an average body weight reduction of 14.9% over 68 weeks, and many patients experience rapid, visible results within the first few months of treatment.
Semaglutide changes how your body processes food at a mechanical level. It suppresses appetite through central nervous system pathways, which means you're eating far less.
If you've lost weight on semaglutide and you're thinking about stopping, you've probably encountered that two-thirds of the weight comes back within a year.
If you've tried to pin down what semaglutide actually costs in 2026, you already know the answer depends on which brand you're taking and whether your insurer decided this was the year to start covering weight management.
For years, the question of whether tirzepatide or semaglutide is the better obesity medication relied on indirect comparisons, cross-trial guesswork, and a single diabetes-focused study that used the wrong semaglutide dose for weight loss.
After decades of limited success with diet pills and other treatments, the emergence of semaglutide for weight loss is being hailed as a game-changer in obesity care.