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c/tirzepatide·posted 7 months ago by u/zaid_balogun

[Meta] the Zepbound rule is doing its job and people should stop complaining

Lab Long Haul ×7 Slow Clap ×3 The Quiet One ×3

the Zepbound rule is doing its job and people should stop complaining — with the counter-argument included, because I find it fairly persuasive.

Weekly dosing again, half-life in the same neighbourhood as sema, so a step change takes about a month to reach steady state. Judging a new step at day five is judging noise.

SURMOUNT-1 ran 72 weeks with the top arm around 21% mean body weight change. SURPASS is the diabetes programme and reports glycaemic endpoints, so quoting the two interchangeably is a category error.

The four-week interval in the label is a minimum. Nothing about the pharmacology requires you to step on schedule, and the trials stepped on a calendar because trials have to.

I will update this if the picture changes rather than quietly leaving it up.

6,098 up / 381 down94% upvoted38 commentsid 1th5pp24 Dec 2025

38 comments

17 in this archive, depth 6

best — the order this archive was captured in

u/hugo_bergstrom380 points·7 months ago

Vials and pens carry the same molecule; what differs is fill volume, device tolerance and whether you are doing your own arithmetic. Neither is inherently more accurate.

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u/forest_plot_fionastats560 points·7 months ago

2.5mg is a four-week starting dose, not a maintenance dose. Worth being precise since people search these threads.

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u/hugo_bergstrom388 points·7 months ago

This matches mine. Milder nausea than I expected, and what there was settled inside a fortnight of each step.

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u/bastian_eriksen270 points·7 months ago

SURMOUNT-1 landed around 21% at 72 weeks on the top arm

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u/b12_baseline68 points·7 months ago

if 7.5 is working, 10 is not automatically better

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u/matias_salgado19 points·7 months ago

the trials titrated on a calendar, real people titrate on symptoms

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u/copay_card_cc5 points·7 months ago

Same experience with the appetite effect being flatter across the week rather than front-loaded.

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u/zaid_balogunOP35 points·7 months ago·edited

Sulphur burps for the first eight days after each step, then nothing. Predictable enough that I planned my week around it.

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u/zeynep_ndiaye151 points·7 months ago

I would separate the two claims. That the GIP arm exists is uncontroversial; that it explains your constipation pattern is a guess.

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u/throwaway_wl2026227 points·7 months ago

the nausea profile is genuinely gentler than people expect coming from sema

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u/nabila_ogunleye42 points·7 months ago·edited

Yes — 10mg being a genuine landing place for a lot of people is underrated. There is no medal for 15.

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u/mikkel_kimani11 points·7 months ago

hold the dose that works, the ladder is not a leaderboard

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u/sten_bhattacharya8 points·7 months ago

the four-week step schedule is the label, not folklore

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u/zaid_balogunOP-5 points·7 months ago

stepping every four weeks is a ceiling on speed, not a schedule you must hit

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u/nabila_ogunleye225 points·7 months ago

It is a dual GIP and GLP-1 receptor agonist, and the GIP arm is the part that has no equivalent in the semaglutide threads. That is why the side-effect profile reads differently rather than just milder.

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u/quiet_moderatorMOD265 points·7 months ago

Removed the conversion table. There is no published equivalence between the two molecules and posting one as fact is exactly the kind of thing that gets copied for years.

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u/dario_vermeulen401 points·7 months ago

the appetite effect is blunter than sema, in a good way, most weeks

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About c/tirzepatide

Tirzepatide-specific discussion: the dual-agonist pharmacology, the 2.5 → 15mg ladder, the appetite profile people describe as different from semaglutide, and the SURMOUNT/SURPASS trial programme. Comparisons with semaglutide are welcome as long as they are specific about dose equivalence being unknown.

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