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c/tirzepatide·posted 2 months ago by u/laila_yilmaz

[Discussion] GIP is doing more work than we give it credit for

Discussion Well Actually ×1 Cold Box ×2

Week 32 update. 28kg down from the start, early fullness basically gone since about week 84.

Things that worked: consistency, protein at breakfast, walking more than I want to. Things that did not: everything I bought on the internet to help with early fullness.

The part that surprised me is how much of this is admin. Ordering, storing, logging, remembering. Nobody mentions that the hard bit is not the drug, it is the routine.

Happy to answer anything. Please do not ask me what dose you should be on.

7,876 up / 5,882 down57% upvoted28 commentsid 1sn0lm2 May 2026

28 comments

20 in this archive, depth 4

best — the order this archive was captured in

u/matias_salgado267 points·2 months ago

What was the trial arm you are quoting from? SURMOUNT-1, -2, -3 are all different.

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u/cormac_pereira91 points·2 months ago

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

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u/fatima_wojcik160 points·2 months ago

the nausea from tirz is different, not necessarily worse

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u/emil_wojcik40 points·2 months ago

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

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u/dario_stanescu98 points·2 months ago
more of this energy please
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u/gentle_correctionnice about it84 points·2 months ago

My ALT moved faster on tirz than on sema at the same timepoint, which matches what people report.

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u/gustav_vermeulen123 points·2 months ago

Switched from sema at 1.0mg to tirz at 1.7mg. Different drugs, cannot compare the doses directly.

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u/bastian_eriksen43 points·2 months ago

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

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u/piotr_nascimento24 points·2 months ago

How long at each step before you escalated?

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u/britt_okwuosa27 points·2 months 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/mikkel_kimani20 points·2 months ago

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

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u/nabila_ogunleye15 points·2 months ago

You have restated the marketing copy. What is the actual substance here.

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u/quiet_moderatorMOD17 points·2 months ago

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

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u/certified_referenceQC-16 points·2 months ago

What was the trial arm you are quoting from? SURMOUNT-1, -2, -3 are all different.

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u/laila_yilmazOP0 points·2 months ago

My fasting insulin moved faster on tirz than on sema at the same timepoint, which matches what people report.

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u/laila_yilmazOP1 point·2 months ago

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

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u/zaid_balogun7 points·2 months ago

Removed a chain here.

Disagree on that part. 98.1% and 98.9% on the same vial is normal.

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u/customs_seizure_sid11 points·2 months ago

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

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u/vito_chowdhury9 points·2 months ago·edited

Zepbound and Mounjaro are literally the same drug, the name is the only difference

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u/piotr_nascimento7 points·2 months ago

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

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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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