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c/glp1science·posted 1 year ago by u/lina_ndiaye

[Results] 66 weeks on 5mg, full numbers, ask me anything boring

Explainer Receipts ×5 Cold Box ×3 Clean Column ×3

Been lurking in c/researchpeptides for about 7 months and finally have something worth posting.

Short version: week 58, 10mg, and pharmacology is the bit I still cannot get a straight answer on. I have read the wiki, I have read the last 23 threads, and the answers split roughly down the middle.

What I actually want to know is whether the people saying it does not matter have measured it, or whether it is just repeated confidently. Happy to be told I am overthinking this — I probably am — but I would rather overthink it now than at week 52.

7,029 up / 656 down91% upvoted64 commentsid 1u4c9u29 Jan 2025

64 comments

30 in this archive, depth 5

best — the order this archive was captured in

u/emil_agyeman965 points·1 year ago

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

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u/plain_titration280 points·1 year ago

This is correct.

Adding to this: half-life is doing more work than the comment implies.

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u/ferran_batista-21 points·1 year ago

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

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u/lina_ndiayeOP0 points·1 year ago

the 8-day half-life means week 8 is still ramp-up pharmacokinetically

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u/the_poster_in_question_2026629 points·1 year ago

Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.

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u/rafael_ostergaard263 points·1 year ago

receptor distribution matters, GLP-1 is not everywhere

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u/wholesome_lurker91 points·1 year ago

do not extrapolate rodent data to human dosing without saying so

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u/piotr_grimaldi75 points·1 year ago·edited

do not extrapolate rodent data to human dosing without saying so

Yes, exactly this, and it is the bit that took me 77 weeks to accept.

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u/camila_lindqvist580 points·1 year ago
this should be in the wiki
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u/trialwatch_theotrial nerd328 points·1 year ago

Half-life is about 168 hours, so steady state lands around week 2–5. Practical consequence: what you feel in week 1 is not what that dose does.

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u/ferran_dahlberg117 points·1 year ago

No. This is the kind of confident post that gets copied into a screenshot and repeated for years. Where is the evidence.

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u/trialwatch_theotrial nerd81 points·1 year ago

Yeah, the incretin mechanism is doing the work here.

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u/marisol_kravchenko31 points·1 year ago

amylin is not GLP-1, posts conflating them get corrected

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u/lurker_for_years36 points·1 year ago

the half-life is receptor, affects steady state timing

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u/isabela_nilsen52 points·1 year ago

Edit to your parent would help — the concentration you quoted assumes one scenario and you have written another above it.

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u/piotr_grimaldi264 points·1 year ago

do not extrapolate rodent data to human dosing without saying so

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u/employer_carveout117 points·1 year ago

Which paper are you quoting?

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u/amara_dziedzic359 points·1 year ago

Rodent, human, or in vitro?

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u/incretin_ivyMOD197 points·1 year ago

This is an urgent-care question wearing a forum question's clothes. Please contact a clinician rather than waiting for replies.

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u/lina_ndiayeOP123 points·1 year ago

Receptor distribution explains why injection-site soreness hits pharmacology but not incretin.

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u/hassan_ostergaard57 points·1 year ago

the 11-day half-life means week 11 is still ramp-up pharmacokinetically

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u/analog_alphabet47 points·1 year ago

the 11-day half-life means week 11 is still ramp-up pharmacokinetically

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/lina_ndiayeOP188 points·1 year ago

Stomach physiology changed when I moved up to 15mg. Gastric emptying lag is the whole story.

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u/mod_ambulatoryadmin252 points·1 year ago

Crossposting this to c/researchpeptides because the people who need it are not reading this community.

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u/ferran_dahlberg88 points·1 year ago

Receptor distribution explains why fatigue hits receptor but not half-life.

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u/yannick_barros157 points·1 year ago

amylin is not GLP-1, posts conflating them get corrected

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u/bastian_ekstrom74 points·1 year ago

the half-life is half-life, affects steady state timing

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u/rasmus_kimani56 points·1 year ago

cite the paper: journal, year, first author, links optional

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u/saskia_lokken94 points·1 year ago

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

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u/georgi_chowdhury24 points·1 year ago

Where does the receptor data actually come from?

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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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