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c/tirzepatide·posted 1 year ago by u/crosspost_bot_no

[PSA] GIP is not what most of this community thinks it is

Results Long Haul ×1 Slow Clap ×3

Explainer, as requested in the last thread: GIP is not what most of this community thinks it is.

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.

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.

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.

Corrections welcome, especially the pedantic ones. Pedantry is how this board earns its reputation.

3,347 up / 1,100 down75% upvoted58 commentsid pj2lxf6 Feb 2025

58 comments

30 in this archive, depth 5

best — the order this archive was captured in

u/britt_okwuosa428 points·1 year ago

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.

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[deleted]301 points·1 year ago

[deleted]

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u/gustav_vermeulen111 points·1 year ago

Disagree with the conversion table. There is no validated equivalence between the two molecules and posting one as though there is does real damage.

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u/ewan_marchand206 points·1 year ago

Held 7.5 for five months. Everyone kept asking when I was going to 10. The answer was never, because 7.5 was working.

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u/nz_unfunded332 points·1 year ago

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

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u/cato_girard178 points·1 year ago·edited

Do sulphur burps follow the day after the shot, or is it spread across the week?

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u/dexa_twice_yearlybody comp51 points·1 year ago

Do sulphur burps follow the day after the shot, or is it spread across the week?

Agreed, with one qualifier: that is the mean of the top arm and the spread around it was enormous.

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u/nordic_pricing56 points·1 year ago

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

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u/forest_plot_fionastats145 points·1 year ago

29kg over 94 weeks, never went past 10mg, and food noise stayed mild the whole way. Posting because the loud threads are all 15mg.

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u/crosspost_bot_noOP76 points·1 year ago

Which week did the appetite change actually land for you?

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u/mikkel_kimani136 points·1 year ago

2.5 is the starter dose and it is not meant to be the dose that works

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u/kaia_cabrera76 points·1 year ago

Not sure that follows. You went up a step and changed your training in the same fortnight.

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u/nordic_pricing51 points·1 year ago

Did you come to this from sema, and if so how long was the gap?

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u/hub_opssite staff28 points·1 year ago

sulphur burps are the signature complaint and they are not dangerous

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u/mikkel_ogunleye13 points·1 year ago

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

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u/titration_marshalmod · c/semaglutide9 points·1 year ago

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

Saving this one. It is the clearest statement of the stall problem I have read here.

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u/taper_off_tabitha26 points·1 year ago

The 21% figure is a 72-week mean on the highest arm. Quoting it as what someone should expect by week 10 is not a fair reading.

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u/mikkel_kimani9 points·1 year ago

Agreed, and the trial number is a mean of a very wide distribution — the tails are enormous and nobody posts from the middle.

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u/copay_card_cc51 points·1 year ago

if 7.5 is working, 10 is not automatically better

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u/slow_logbook_ftw60 points·1 year ago

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

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u/laila_yilmaz31 points·1 year ago

a lot of people plateau nicely at 10mg and never need 15

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u/dario_vermeulen19 points·1 year ago

Appetite effect for me is flat across seven days. On sema it was a wave. Same person, different molecule.

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u/marit_sandvik62 points·1 year ago

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

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u/teodor_szabo69 points·1 year ago

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

This. The step interval is a floor, and reading it as a timetable is the most expensive mistake in the thread.

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u/rania_marchand31 points·1 year ago

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/crosspost_bot_noOP17 points·1 year ago·edited

Went 10 to 12.5 on the calendar and had the worst fortnight of the whole run. Dropped back to 10 and everything settled.

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u/crosspost_bot_noOP13 points·1 year ago

What is the waist doing? That is usually the number still moving during a scale stall.

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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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