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Evidence-based GLP-1 & peptide discussion since 2023
ForumsSide Effects & ManagementHas anyone dealt with fatigue on semaglutide? Page 2

Has anyone dealt with fatigue on semaglutide?

KetoKyle Mon, Jun 23, 2025 at 12:15 PM 6 replies 1,382 viewsPage 2 of 2
raj_cambridge
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Jun 23, 2025 at 2:48 PM#6

The figures, for anyone assembling their own picture. Worth knowing that the injection site changes very little. Abdomen, thigh and upper arm are bioequivalent for semaglutide, so a site change is not a plausible explanation for a bad week.

46 16SleepFixSam, PurityPaulOR, MaxMetOK and 43 others
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james_edin
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Jun 23, 2025 at 3:48 PM#7

Following on from newstart_MO — and this may be the naive question:

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?

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chris_chi24
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Jun 23, 2025 at 4:48 PM#8
raj_cambridge said:
Worth knowing that the injection site changes very little.

Coming at raj_cambridge’s question from a different direction. 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".

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KetoKyle
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Jun 23, 2025 at 5:48 PM#9

Reporting back.

Update. I did go to 2.4mg in the end, and the honest report is that it bought me less than the step before it and cost me two bad weeks. Worth knowing rather than worth repeating.

Last edited: Jun 23, 2025 at 6:48 PM
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Dr.LipidDallas
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Jun 23, 2025 at 10:36 PM#10
chris_chi24 said:
The dose-response is real but shallow at the top.

That is correct as far as it goes, and here is where it stops going. 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.

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