Taking the question as asked, rather than the general version of it. The dose-response is real but shallow at the top. Across STEP 1 and STEP 4 the gap between 1.7mg and 2.4mg is a couple of percentage points of body weight on average, and the average is carrying a wide spread — plenty of people at 1.7mg sit above the 2.4mg mean. If a dose is working and tolerable, "working" is the relevant variable, not "maximal".
Started at 0.25mg with a fairly bad first week, held each step the full four weeks, and I am now at 1mg with no side effects worth naming.
For anyone assembling their own picture: Tmax is one to three days, terminal half-life about 165 to 170 hours, steady state at four to five weeks, and subcutaneous bioavailability near 89%. Those four numbers explain most of the questions people ask about timing.
What would genuinely help is knowing whether anyone has held at a sub-maximal dose long term and kept the result, or whether the maintenance data only exists at 2.4mg.
Not looking for reassurance. Looking for the part I have got wrong.
amsterdam_pete said:The dose-response is real but shallow at the top.
amsterdam_pete has the substance of this right. The condition it depends on is worth stating. Steady state is the thing most people miss. The terminal half-life is about a week, so every dose step takes four to five weeks to fully express itself. Judging a step at day ten is judging the ascent, not the plateau, and it is the single commonest reason people escalate before they needed to.
Correct me if the detail matters more than I have assumed.
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Browse GL Biochemroxy_nash said:Started at 0.25mg with a fairly bad first week, held each step the full four weeks, and I am now at 1mg with no side effects worth naming.
Agreed, though "tolerable" needs defining. A dose you tolerate by eating almost nothing is not tolerated, it is being paid for somewhere else — usually in lean mass, sometimes in adherence three months later.
From the other side of the consultation, briefly.
roxy_nash 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.