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

[Question] is 93.7% actually fine or am I being sold a rounding error

Question Clean Column ×8 Long Haul ×1

Right: is 93.7% actually fine or am I being sold a rounding error. I paid for this one myself, nobody sent me anything, and the receipts are in the comments.

The numbers the title promised, since a headline without them is worthless: 93.7%. Everything below is context for those.

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.

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.

Research-use-only material is not approved for human use and nothing here should be read as a recommendation to use it.

2,780 up / 467 down86% upvoted45 commentsid sky8k43 Apr 2025

45 comments

30 in this archive, depth 5

best — the order this archive was captured in

u/aurel_lindqvist-16 points·1 year ago

The four-week interval in the label is a minimum. Nothing about the pharmacology requires you to step on schedule, and the trials stepped on a calendar because trials have to.

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u/sanne_novak1 point·1 year ago

pens and vials are the same molecule, the price is the difference

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u/gentle_correctionnice about it1 point·1 year ago

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

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u/sofia_nascimento1 point·1 year ago

Are you comparing yourself with the trial mean or with the people who post the most?

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u/teodor_szaboOP1 point·1 year 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/hassan_nilsen1 point·1 year ago

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

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u/bastian_eriksen1 point·1 year ago

I would separate the two claims. That the GIP arm exists is uncontroversial; that it explains your fatigue pattern is a guess.

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[removed]1 point·1 year ago

[removed by moderator]

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u/amara_halonen1 point·1 year ago·edited

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/swirl_dont_shakereconstitution1 point·1 year ago

the trials titrated on a calendar, real people titrate on symptoms

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u/coring_the_stopper1 point·1 year ago·edited

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

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u/cormac_pereira133 points·1 year ago

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

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u/ahmed_fonseca83 points·1 year ago

Went 10 to 12.5 on the calendar and had the worst fortnight of the whole run.

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/b12_baseline97 points·1 year ago

sulphur burps are the signature complaint and they are not dangerous

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u/britt_okwuosa90 points·1 year ago

the early fullness profile is genuinely gentler than people expect coming from sema

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u/gentle_correctionnice about it40 points·1 year ago

Yes — 10mg being a genuine landing place for a lot of people is underrated. There is no medal for 15.

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u/laila_yilmaz25 points·1 year ago·edited

Yes — 10mg being a genuine landing place for a lot of people is underrated.

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

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u/line_petrov20 points·1 year 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/teodor_szaboOP52 points·1 year ago

Does nausea follow the day after the shot, or is it spread across the week?

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u/ahmed_fonseca14 points·1 year ago

stepping every four weeks is a ceiling on speed, not a schedule you must hit

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u/throwaway_titration63 points·1 year ago·edited

Appetite effect for me is flat across seven days. On sema it was a wave. Same person, different molecule.

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u/tarek_kirchner77 points·1 year ago

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

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u/zaid_balogun42 points·1 year ago

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

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u/ingrid_correia14 points·1 year ago

a lot of people plateau nicely at 10mg and never need 15

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u/piotr_nascimento24 points·1 year ago

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

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u/fatima_wojcik13 points·1 year ago

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/sten_palacios6 points·1 year ago

Weekly dosing again, half-life in the same neighbourhood as sema, so a step change takes about a month to reach steady state.

fatima_wojcik 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/certified_referenceQC4 points·1 year ago

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

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u/dexa_twice_yearlyMOD6 points·1 year 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/ewan_marchand5 points·1 year 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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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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