What is tirzepatide and how is it different from semaglutide?
Semaglutide acts on the GLP-1 receptor. Tirzepatide acts on both GLP-1 and GIP receptors, and in head-to-head trials has produced larger average weight reduction. Both slow gastric emptying and reduce appetite, and both carry similar gastrointestinal side effects.
The mechanism, briefly
GLP-1 and GIP are both incretin hormones your gut releases after you eat. They increase insulin release when glucose is high, slow how fast the stomach empties, and act on appetite signalling in the brain. Semaglutide mimics GLP-1 alone; tirzepatide acts at both receptors.
The practical consequence is that food stays in the stomach longer and appetite signalling changes, so people eat less without the constant effort that usually requires.
What the trials show
Across the major trials, tirzepatide has produced greater average weight reduction than semaglutide, including in a direct comparison. Averages conceal wide individual variation, and the person in front of you is not an average.
Side-effect profiles are broadly similar: nausea, constipation or diarrhoea, reflux and early satiety, usually worst in the first weeks after a dose increase and usually settling.
Which one is right is a clinical question
It depends on your metabolic picture, what else you take, how you tolerate dose escalation, your history with nausea and reflux, and what you are actually trying to change. That is a conversation with a physician who has your bloodwork, not a decision to make from a comparison table.
At Marina del Rey that starts with a consultation and a comprehensive panel.
General information, not medical advice, and not a substitute for seeing a clinician who can assess you. Cryohealthcare Marina del Rey is a wellness practice; our treatments are not medical treatments and do not treat medical disease. We do not sell peptides or prescription medication from this website.
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