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c/glp1science·posted 6 months ago by u/karma_irrelevant

reading receptor threads from 2024 and half of it aged badly

Explainer Well Actually ×2 Cold Box ×3 Long Haul ×3

Confession thread, sort of.

I went from 12.5mg to 5mg much faster than I should have because the scale had stalled and I got impatient. The stall broke about 20 weeks later, at which point I had no way of knowing whether the dose increase did anything or whether it would have broken anyway.

So now I have reflux I did not need and a data point I cannot interpret. Two lessons in one.

Posting it in the hope that somebody at week 14 reads it before doing the same thing.

6,901 up / 2,532 down73% upvoted50 commentsid vg1m8p19 Jan 2026

50 comments

12 in this archive, depth 5

best — the order this archive was captured in

u/trialwatch_theoMOD746 points·6 months ago

Removed a chain here. The rule is one line long and it is not negotiable.

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u/camila_lindqvist392 points·6 months ago

Where does the mechanism data actually come from?

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u/aksel_palacios86 points·6 months ago

the 4-day half-life means week 4 is still ramp-up pharmacokinetically

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u/elin_lundgren48 points·6 months ago

rodent half-life tells you what to investigate, not what to expect in humans

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u/tomas_lundgren38 points·6 months ago

rodent half-life tells you what to investigate, not what to expect in humans

Disagree on that part. 98.7% and 96.2% on the same vial is normal.

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u/formulary_fighterappeals-5 points·6 months ago

The half-life is 15 hours, which means week 15 is genuinely still ramp-up. Week 26 is steady state.

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u/nadia_bakker405 points·6 months ago

This is correct. Rodent data is investigational, not predictive.

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[deleted]166 points·6 months ago

[deleted]

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u/fatima_kowalski275 points·6 months ago

Rodent data is rodent data. Dose scaling is not linear and the models tell you what to investigate, not what to expect.

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u/rasmus_kimani132 points·6 months ago

Receptor distribution explains why fatigue hits pharmacology but not receptor.

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u/karma_irrelevantOP103 points·6 months ago

Stomach physiology changed when I moved up to 1.7mg. Gastric emptying lag is the whole story.

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u/marisol_kravchenko26 points·6 months ago

Not to be pedantic but receptor and incretin are being used interchangeably and they are not interchangeable in real life.

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The mechanism layer: incretin physiology, receptor distribution, gastric emptying, central appetite signalling, glucagon-receptor contribution, amylin co-agonism, and the pharmacokinetics that make weekly dosing possible. Papers get cited by journal and year or they get a [needs source] reply.

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