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

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

Discussion The Quiet One ×5 Receipts ×1 Well Actually ×3

Been lurking in c/compounding for about 13 months and finally have something worth posting.

Short version: week 29, 0.5mg, and GIP is the bit I still cannot get a straight answer on. I have read the wiki, I have read the last 13 threads, and the answers split roughly down the middle.

What I actually want to know is whether the people saying it does not matter have measured it, or whether it is just repeated confidently. Happy to be told I am overthinking this — I probably am — but I would rather overthink it now than at week 23.

4,998 up / 580 down90% upvoted59 commentsid op0ncj15 Jul 2025

59 comments

23 in this archive, depth 5

best — the order this archive was captured in

u/emil_wojcik479 points·1 year ago

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

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u/ingrid_correia155 points·1 year ago

The SURMOUNT readouts are real but less consistent than STEP. Some people plateau earlier on tirz.

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u/ahmed_iyer401 points·1 year ago

Did you stay on semaglutide or switch? The outcome is different if you are comparing.

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u/neha_falk469 points·1 year ago

week 8 on Mounjaro and the appetite profile is genuinely different from sema

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u/emil_barros0 points·1 year ago

The practical rule people converge on is 28 days at fridge temperature after first puncture, and that comes from the preservative, not the peptide.

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u/quiet_moderatormod1 point·1 year ago

Dead space in the needle hub holds a small but non-trivial volume. On low-volume draws that can be several units.

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u/amara_halonen1 point·1 year ago

the nausea from tirz is different, not necessarily worse

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u/ferritin_low1 point·1 year ago

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

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u/nz_unfundedOP1 point·1 year ago

Vial-splitting is on-topic here. Do not ask about pen-cracking, that goes in c/reconstitution.

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[deleted]1 point·1 year ago

[deleted]

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u/discount_math_dm235 points·1 year 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/rania_diallo127 points·1 year ago

do not crack the pen, we have been over this

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u/ahmed_fonseca60 points·1 year ago

Hard agree. The food noise disappears differently on the two compounds.

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u/swirl_dont_shakereconstitution110 points·1 year ago·edited

the early fullness from tirz is different, not necessarily worse

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u/georgi_chowdhury153 points·1 year ago

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

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u/bastian_ekstrom117 points·1 year ago

Cosigning.

Counter-anecdote: opposite result, same dose. Which mostly tells us the variance is huge.

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u/aurel_lindqvist28 points·1 year ago

week 70 on Mounjaro and the appetite profile is genuinely different from sema

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u/cato_girard102 points·1 year ago·edited

How long at each step before you escalated?

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u/spain_receta75 points·1 year ago·edited

the GIP side does different things than the GLP-1 side, that is the point

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u/incretin_ivypharmacology-18 points·1 year ago

This matches the trial data. SURMOUNT-1 was 97.4% body weight at 23 weeks.

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u/dario_stanescu0 points·1 year ago

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

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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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