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c/tirzepatide·posted 6 months ago by u/gentle_correction

[Meta] proposal — a flair for 15mg posts

Trial Data Sourced ×2 Long Haul ×1

Housekeeping: proposal — a flair for 15mg posts.

15mg — those are the numbers, and they are the ones I am willing to defend.

The distribution matters more than the mean. In the trial population the interquartile spread was wide enough that two honest people can have completely different runs on the same arm.

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

That is everything I have. The rest is opinion and I have tried to keep it out.

2,726 up / 790 down78% upvoted50 commentsid 1ul44h21 Jan 2026

50 comments

23 in this archive, depth 4

best — the order this archive was captured in

u/titration_marshalmod · c/semaglutide475 points·6 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/swirl_dont_shakereconstitution187 points·6 months ago

That percentage is body weight change, not body fat. Different measurement, and the distinction gets lost every time.

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u/gentle_correctionOPnice about it353 points·6 months ago

The thing nobody warned me about was how much of this is logistics — storing it, remembering it, the same day every week.

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u/slow_logbook_ftw292 points·6 months 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/titration_marshalmod · c/semaglutide530 points·6 months ago

Correction to my own post above — I said 5mg and I have been on 7.5mg since the spring. Same argument, wrong number.

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u/alcohol_aversion-25 points·6 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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[removed]1 point·6 months ago

[removed by moderator]

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u/laila_wikstrom199 points·6 months ago

Push back: "gentler than sema" is a population statement. Plenty of people on this board have the opposite experience and they are not doing it wrong.

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u/nz_unfunded159 points·6 months ago

sulphur burps are the signature complaint and they are not dangerous

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u/throwaway_titration41 points·6 months ago

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/b12_baseline13 points·6 months ago

dual agonist, so the GIP arm is doing something the sema threads will not tell you about

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u/bastian_ekstrom133 points·6 months 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/quiet_moderatorMOD152 points·6 months ago

Trial identifiers corrected in the title. SURMOUNT and SURPASS are different programmes.

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u/fatima_wojcik105 points·6 months ago

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

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u/ewan_marchand101 points·6 months ago

Careful with "everyone tolerates it better". The people it did not suit stop posting, which makes this board look calmer than the drug is.

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u/gentle_correctionOPnice about it118 points·6 months ago

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

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u/noor_hovland124 points·6 months ago

Push back: "gentler than sema" is a population statement.

Not sure about this bit. The GIP arm being real does not tell you that it is what caused your particular week.

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u/endpoint_creep44 points·6 months 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/matias_salgado13 points·6 months ago

Does fatigue follow the day after the shot, or is it spread across the week?

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u/ferritin_low220 points·6 months ago

Research-use-only material is not approved for human use. Anything in this thread about how a research vial "should" titrate is a discussion about chemistry, not a plan.

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u/elin_varga144 points·6 months ago

Small fix: SURMOUNT is the obesity programme, SURPASS is the type-2 programme. They are different endpoints and the numbers do not transfer.

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u/santiago_villalobos139 points·6 months ago

Week 13 was the first time the scale moved after a five-week stall. I changed nothing in that window.

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u/b12_baseline98 points·6 months ago

week 2 is early to draw any conclusion at all

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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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