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.
The bit I cannot resolve on my own is 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.
I would rather have one careful answer than five confident ones.
Short answer first, then the reasoning. 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.
TirzTom said:Albumin binding above 99% is the whole reason weekly dosing works, and it is also why the trough matters more than the peak.
Agreeing with TirzTom, and the qualification matters more than the agreement. 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".
I would rather be corrected than agreed with, if it comes to it.
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Shop Reference StandardsPharmHunterJen 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.
That holds for the injectable. The oral formulation has different absorption behaviour and the dose numbers are not interchangeable, which is worth saying out loud because people quote them as if they were.
From the other side of the consultation, briefly.
PharmHunterJen 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.