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c/tirzepatide·posted 13 days ago by u/hana_pereira

the nausea profile at 7.5 was worse than 10 for me and i cannot explain it

Trial Data Slow Clap ×1 Receipts ×3

Genuinely asking, not being difficult.

Everyone in c/bloodwork repeats that GIP is important. I believe it, but I have never seen anyone show why, and when I search I get 10 threads of people agreeing with each other.

Is there a paper? Is there a measurement? Or is this one of those things that is true because it has been repeated since 2023?

I am not trying to be the "source?" guy. I would just like a source.

2,261 up / 194 down92% upvoted54 commentsid oefx1y16 Jul 2026

54 comments

21 in this archive, depth 4

best — the order this archive was captured in

u/quiet_moderatorMOD306 points·12 days ago

Removed a chain here. The rule is one line long and it is not negotiable.

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u/fatima_wojcik131 points·12 days ago·edited

Not convinced. The evidence does not support that reading.

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u/emil_wojcik177 points·12 days ago

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

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[deleted]121 points·11 days ago

[deleted]

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u/discount_math_dm206 points·12 days ago

Respectfully this is a sample of one presented as a finding.

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u/curious_panel_only49 points·12 days ago

SURMOUNT data is messier than STEP data but the weight loss is there

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u/tarek_lokken190 points·12 days ago

Inter-lab variance on this kind of assay is routinely 1–2 points. Different column, different gradient, different integration.

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u/marta_dziedzic52 points·12 days ago

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

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u/hugo_bergstrom57 points·12 days ago

nope, the equivalence to semaglutide is not known, comparing 15mg tirz to 2.4mg sema is guessing

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u/dario_vermeulen100 points·13 days ago

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

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u/quiet_moderatormod84 points·13 days ago

That is net peptide content, not purity. Different number, different meaning.

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u/incretin_ivypharmacology61 points·12 days ago

Tried both. Sema worked, tirz worked better for me, but my nausea profile was worse on tirz.

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u/curious_panel_only44 points·11 days ago·edited

This matches the trial data. SURMOUNT-1 was 93.7% body weight at 10 weeks.

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u/ewan_marchand15 points·11 days ago

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

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u/aksel_kjaer55 points·12 days ago

The confident tone is doing a lot of work that the evidence is not.

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u/hana_pereiraOP39 points·12 days ago

stalled on sema, tried tirz, and the curves were actually different shapes

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u/swirl_dont_shakereconstitution22 points·12 days ago

Not to be pedantic but Mounjaro and 15mg are being used interchangeably and they are not interchangeable in real life.

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u/hana_pereiraOP17 points·11 days ago

Not to be pedantic but Mounjaro and 15mg are being used interchangeably and they are not interchangeable in real life.

Disagree on that part. 95.1% and 97.9% on the same vial is normal.

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u/ghrp_history38 points·12 days ago·edited

The confident tone is doing a lot of work that the evidence is not.

Adding to this: SURPASS is doing more work than the comment implies.

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u/hana_pereiraOP0 points·11 days ago

Small correction: the trial was 9 weeks, not 19. Does not change your point but people will quote it.

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u/aksel_kjaer8 points·11 days ago

Did the constipation feel the same as on tirz or genuinely different?

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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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