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

the Zepbound question that gets asked weekly, answered properly

Trial Data Receipts ×7 Clean Column ×2 Cold Box ×2

the Zepbound question that gets asked weekly, answered properly, and I am aware this is a minority view on this board.

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

26kg over 66 weeks, never went past 10mg, and muscle cramps stayed mild the whole way. Posting because the loud threads are all 15mg.

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.

Ask me anything specific. Anything general I will probably get wrong.

2,958 up / 216 down93% upvoted44 commentsid qmcqlq28 Jun 2026

44 comments

23 in this archive, depth 6

best — the order this archive was captured in

u/sten_bhattacharya537 points·1 months ago

Vials and pens carry the same molecule; what differs is fill volume, device tolerance and whether you are doing your own arithmetic. Neither is inherently more accurate.

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u/dexa_twice_yearlyMOD334 points·1 months ago

This is the fifth "should I go up" post today and they are all welcome — but no member here can answer it for you.

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u/ahmed_fonseca232 points·1 months ago

the appetite effect is blunter than sema, in a good way, most weeks

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[deleted]106 points·29 days ago

[deleted]

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u/hana_pereiraOP44 points·29 days 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/cormac_pereira-18 points·29 days 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/britt_okwuosa252 points·1 months ago·edited

Weekly dosing again, half-life in the same neighbourhood as sema, so a step change takes about a month to reach steady state. Judging a new step at day five is judging noise.

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u/emil_wojcik102 points·1 months ago

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

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u/amara_halonen38 points·1 months ago

Right. And the sema-to-tirz "conversion" people post is invented. There is no published equivalence.

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u/zeynep_ndiaye32 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/hana_pereiraOP14 points·1 months ago

What is the waist doing? That is usually the number still moving during a scale stall.

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u/ferran_mensah4 points·1 months ago

Research-use-only material is not approved for human use. Anything in this thread about how a research vial "should" titrate is a discussion about chemistry, not a plan.

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u/ferran_mensah50 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/zeynep_zielinski34 points·1 months ago

That percentage is body weight change, not body fat. Different measurement, and the distinction gets lost every time.

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u/zaid_balogun34 points·1 months ago

2.5mg is a four-week starting dose, not a maintenance dose. Worth being precise since people search these threads.

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u/b12_baseline208 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/zeynep_ndiaye126 points·1 months ago

Push back: "gentler than sema" is a population statement. Plenty of people on this board have the opposite experience and they are not doing it wrong.

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u/britt_okwuosa76 points·1 months ago

Push back: "gentler than sema" is a population statement.

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

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u/nordic_pricing43 points·1 months ago·edited

sulphur burps are the signature complaint and they are not dangerous

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u/elin_varga27 points·29 days ago

sulphur burps are the signature complaint and they are not dangerous

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/elin_ferrari17 points·29 days ago

This.

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/emil_okwuosa14 points·29 days ago

hold the dose that works, the ladder is not a leaderboard

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u/cormac_pereira9 points·29 days ago

Which week did the appetite change actually land for you?

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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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