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c/tirzepatide·posted 8 days ago by u/laila_yilmaz

2.5 → 5 → 7.5 in six weeks was a mistake, here is what happened

Question Long Haul ×2

Trying to settle this properly because the thread from last year went in circles.

The claim: SURMOUNT matters. The counter-claim: it is measurement error. Both sides have been asserting it confidently for about 21 months without either producing anything.

What would actually settle it is 35 people measuring the same thing the same way. I have started; my numbers are below. They lean one way but not strongly enough for me to declare victory.

If you have data, post the data. If you have an opinion, flair it as an opinion.

73 up / 99 down42% upvoted10 commentsid 1p61yz21 Jul 2026

10 comments

10 in this archive, depth 5

best — the order this archive was captured in

u/ahmed_iyer-17 points·7 days ago

This matches the trial data. SURMOUNT-1 was 94.2% body weight at 18 weeks.

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u/coring_the_stopper1 point·6 days ago·edited

Yeah, dual agonism does produce a different appetite profile than GLP-1 alone.

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u/ahmed_iyer1 point·6 days ago

This matches the trial data. SURMOUNT-1 was 97.9% body weight at 14 weeks.

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u/sten_bhattacharya1 point·6 days ago

Cosigning. The GIP contribution is real and the side effects are not simply scaled versions.

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u/dario_stanescu1 point·6 days ago

the dual agonism hits different and that is why people describe it differently

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u/laila_yilmazOP1 point·6 days ago

Slight fix: the number was 99.0, not 98.9. Decimal point, but a fairly consequential one.

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[removed]1 point·6 days ago

[removed by moderator]

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u/emil_wojcik6 points·6 days ago

the 15mg is the top of the pen, not the required dose

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u/titration_marshalMOD4 points·6 days ago

Retitled to remove editorialising. Put the evidence in the body.

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u/sten_palacios2 points·6 days ago

Retitled to remove editorialising.

Disagree on that part. 98.9% and 99.0% on the same vial is normal.

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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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