I moved from brand to compounded semaglutide at the same nominal dose and cannot decide whether what changed is the material, my titration, or my expectations.
The question I want answered is what the dose-response curve actually looks like above 1.7mg, because the trial means hide how few people account for the extra loss.
Practical detail welcome, however dull — the duller the better.
Short answer first, then the reasoning. The mechanism that matters here is not stomach emptying, it is central. GLP-1 receptor agonism in the arcuate nucleus stimulates POMC neurons and suppresses AgRP/NPY signalling, which is why the effect is appetite and food salience rather than physical fullness. Delayed gastric emptying largely tachyphylaxes over the first months; the appetite effect does not.
InsuranceTom said:The mechanism that matters here is not stomach emptying, it is central.
No disagreement with InsuranceTom. One condition attached. Albumin binding above 99% is the whole reason weekly dosing works, and it is also why the trough matters more than the peak. People who dose late are not losing a peak, they are letting the trough fall, and the appetite effect tracks the trough.
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Browse GL BiochemVanRx_Mike said:I moved from brand to compounded semaglutide at the same nominal dose and cannot decide whether what changed is the material, my titration, or my…
All true, with one condition: that curve is for people who reached the dose on schedule. Anyone who slowed the ladder for tolerability is on a different, flatter curve, and comparing yourself with the published mean will make you feel like a non-responder when you are not.
From the other side of the consultation, briefly.
VanRx_Mike said:...but the FDA says semaglutide...
Interesting point. I want to add some regulatory nuance: the FDA labeling reflects the specific clinical trial data submitted for approval. Real-world clinical practice often extends beyond the FDA label based on emerging evidence and clinical judgment.
Example: semaglutide was first approved for diabetes (Ozempic), then obesity (Wegovy). The molecule didn't change — our understanding of its applications expanded. Similarly, semaglutide may evolve as more data accumulates.