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ForumsPharmacology & MechanismsTachyphylaxis vs tolerance — pharmacological distinction on GLP-1 Page 3

Tachyphylaxis vs tolerance — pharmacological distinction on GLP-1

SarahChen_PharmD Fri, Jun 5, 2026 at 1:01 AM 19 replies 515 viewsPage 3 of 4
AussieAnna
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Jun 5, 2026 at 1:11 PM#11
TinaHashiRN said:
Receptor pharmacology relevant to the pharmacology: semaglutide is a GLP-1R agonist with a C-18 fatty acid chain that enables albumin binding (>99%),…

Thank you — that is the clearest version of this I have read, and I have read a lot of them. I will report back once I have actually tried it.

Last edited: Jun 5, 2026 at 2:11 PM
46 19TrialNerd_Beth, HPLC_Greg, LibrarianMeg and 43 others
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julia.endo
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Jun 5, 2026 at 3:19 PM#12

Adding the clinical framing, because it changes how the question reads. The mechanism and the magnitude are separate questions. Agreeing that something happens says nothing about whether it happens enough to act on.

47 20mark_tokyo, hans_munich, jason_sac26 and 44 others
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TirzTom
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Jun 5, 2026 at 5:27 PM#13
Dr.RheumBOS said:
Semaglutide structural biology relevant to the pharmacology: semaglutide is a 31-amino acid peptide with 94% homology to native GLP-1(7-36).

This is where I part company with the consensus forming above. I think the framing smuggles in the conclusion. Ask it the other way round and the obvious answer reverses, which usually means the question is doing the work.

48 21Dr.EndoIndy, tom_AK, josh_phd_bmore and 45 others
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bri_stats
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Jun 5, 2026 at 7:35 PM#14

The figures, for anyone assembling their own picture. Worth stating the units and the reference range whenever you post a number here. A large fraction of the apparent disagreement in these threads is two people using different units and both being right.

Last edited: Jun 5, 2026 at 11:35 PM
49 22JessicaM_2024, TomFromTexas, mike.trainer_LA and 46 others
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mike_mod
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Jun 5, 2026 at 9:43 PM#15

Moderator note: two posts asking for a source have been merged into one. Please search the thread before asking again. No action needed from anybody.

50 23PurityPaulOR, MaxMetOK, MounjBrad and 47 others
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