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c/tirzepatide·posted 1 months ago by u/kaia_wojcik

[Discussion] we are measuring tirzepatide at the wrong time and calling it noise

Discussion Receipts ×5

we are measuring tirzepatide at the wrong time and calling it noise. Change my mind, genuinely — I have no stake in being right about this.

Went 10 to 12.5 on the calendar and had the worst fortnight of the whole run. Dropped back to 10 and everything settled.

Came off sema and onto tirz with a two-week gap. The first month was flat and I assumed I had made a mistake. Month two it moved.

Sulphur burps for the first eight days after each step, then nothing. Predictable enough that I planned my week around it.

Tell me where this is wrong. That is the useful part of posting it.

3,529 up / 3,012 down54% upvoted31 commentsid psh30s19 Jun 2026

31 comments

23 in this archive, depth 6

best — the order this archive was captured in

u/matias_salgado49 points·1 months ago

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.

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u/kaia_wojcikOP35 points·1 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/certified_referenceQC39 points·1 months ago·edited

Not sure that follows. You went up a step and changed your training in the same fortnight.

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u/sten_palacios57 points·1 months ago

Not sure that follows.

Saving this one. It is the clearest statement of the stall problem I have read here.

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u/kaia_wojcik26 points·1 months ago

Not sure that follows.

This. The step interval is a floor, and reading it as a timetable is the most expensive mistake in the thread.

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u/ewan_marchand21 points·1 months ago

the reflux profile is genuinely gentler than people expect coming from sema

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u/kaia_wojcikOP13 points·1 months ago

the reflux profile is genuinely gentler than people expect coming from sema

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/santiago_villalobos9 points·1 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/kaia_wojcikOP5 points·1 months ago

Careful with "everyone tolerates it better".

santiago_villalobos is right that the two molecules are not interchangeable. There is no published conversion and the ones circulating are invented.

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u/alcohol_aversion7 points·1 months ago

2.5 is the starter dose and it is not meant to be the dose that works

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u/alcohol_aversion12 points·1 months ago

SURMOUNT-1 ran 72 weeks with the top arm around 21% mean body weight change. SURPASS is the diabetes programme and reports glycaemic endpoints, so quoting the two interchangeably is a category error.

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u/tove_vasquez4 points·1 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/signe_villalobos7 points·1 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/piotr_nascimento31 points·1 months ago

Disagree with the conversion table. There is no validated equivalence between the two molecules and posting one as though there is does real damage.

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u/zaid_balogun-22 points·1 months ago

Pen or vial? The step sizes available differ and it changes this answer.

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u/ingrid_correia1 point·1 months ago

Pen or vial?

Agreed, with one qualifier: that is the mean of the top arm and the spread around it was enormous.

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u/kian_ekstrom1 point·1 months ago

Correction to my own post above — I said 10mg and I have been on 12.5mg since the spring. Same argument, wrong number.

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u/emil_okwuosa1 point·1 months ago

sulphur burps are the signature complaint and they are not dangerous

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u/endpoint_creep1 point·1 months ago

What step are you on and how long have you been there?

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[deleted]1 point·1 months ago

[deleted]

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u/incretin_ivyMOD11 points·1 months ago

Left up, flair changed to Discussion. It is an opinion post and that is fine as long as it is labelled.

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u/kofi_balogun7 points·1 months ago

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

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u/taper_off_tabitha2 points·1 months ago

if 7.5 is working, 10 is not automatically better

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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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