vialroom

#tirzepatide 2026-03-20

Friday68 messages14 participantstimes are UTC
Highlights from this day
  • vial_ledger — is 7.5 really the sweet spot or is that just channel folklore 40 units of a 10 solution is a lot of volume and i check that one twice every single time 20:03
  • half_life_hal — ok so the sweet spot argument is really about effect per side effect, not a magic number 21:01
  • VialBot — Verification log updated: Homopeptide — evidence added, status unchanged. 21:07
  • sharps_comedy — the sweet spot thing is survivorship, the people it worked for stayed and said so, not advice obviously 21:44
VB

Testing queue: 6 submissions open, 99 awaiting dispatch.

ST

i sat at 7.5 for 12 months and never needed more, which is where the folklore comes from

at 15 my appetite is gone entirely, did anyone go down rather than up

ST

the 2.5 to 5 step was the roughest one for me and everything after was easier

40 units of a 5 solution is a lot of volume and i check that one twice every single time

MO

the GI difference held for me right up to 15, which isnt what a couple of people here found, someone check my working

WT

plateaued at 9 weeks the same way i did on semaglutide, so i doubt its compound specific

MO

the trials titrated every four weeks to a target, most people here stop at whatever works

is SURMOUNT-OSA the sleep apnoea one

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MO

how many weeks at 7.5 before you knew it was enough

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MM

€120 for a 10 vial is roughly what ive paid for the last year
the GI difference held for me right up to 15, which isnt what a couple of people here found

P2

changed my mind about needing 15, i was chasing a number rather than an outcome

Cited study
Tirzepatide versus Semaglutide Once Weekly in Type 2 Diabetes (SURPASS-2)
New England Journal of Medicine · 2021
The head-to-head everyone quotes. Note the semaglutide comparator dose.
TT

switched from 2.5 semaglutide and started at 2.5, took the slow route, never regretted it

checked the units twice

there is no clean conversion between the two, anyone giving you a ratio is guessing

fridge-temps.csv
642 rows · not retained in the public archive
P2

the two compounds arent interchangeable week for week even if the effect ends up similar

TT

SURMOUNT was the weight programme and SURPASS was diabetes, thats the split people mix up

does switching from semaglutide need a gap or do you just start

start low anyway

P2

i log everything and my appetite curve looks flatter across the week than my semaglutide log did

TT

the GIP explanation for easier nausea is plausible and i still treat it as a story not a fact

VL

if youre coming off semaglutide the honest answer is start low and find out, theres no table

VB

Assay note: MKM lot G-0641 reported at 99.2% of label content.

VL

is 7.5 really the sweet spot or is that just channel folklore
40 units of a 10 solution is a lot of volume and i check that one twice every single time

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TT

right so SURMOUNT-OSA was the sleep apnoea trial and it is not a weight headline however its quoted

MS

my Janoshik result on a QYB vial came in at 99 which is why i keep buying from them

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MS

held 10 for 20 months and lost 4kg over that stretch, slow and boring and fine

TT

does the GIP arm actually explain the easier nausea or is that hand waving

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20:27marrow.mod pinned a message to this channel
TT

went back to semaglutide after 20 months because the cost difference mattered more than the GI

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SC

anyone tracked whether the GI difference held at the top doses

[edited]

how did people handle the 2.5 to 5 jump
my Janoshik result on a SWB vial came in at 99.4 which is why i keep buying from them

no clean conversion

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SO

the 30 vial in 1.5ml gives 4mg/ml which puts 2.5 on 50 units, nice round numbers, take that with a pinch of salt

SC

ok so i went to 15 and came back to 10, more suppression wasnt more useful for me

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7.5 gang

SURMOUNT-1 versus SURPASS-2, which one was the weight trial

VB

Batch lookup C-4402: 3 independent reports on file, earliest 2025-10-28.

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HL

ok so the sweet spot argument is really about effect per side effect, not a magic number

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VB

Digest for the week of 2025-09-09 has been published.

Verification log updated: Homopeptide — evidence added, status unchanged.

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SC

i argued the sweet spot was nonsense and then spent 10 months at 7.5 not needing more

does the appetite effect feel different or just stronger

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SURMOUNT is weight

the switch felt like a step down at first and then caught up around week 34

SC

the sweet spot thing is survivorship, the people it worked for stayed and said so, not advice obviously

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MM

at 15 the GI came back for me, so my easier profile claim only applies below that

MM

whats the plateau pattern here, same as semaglutide or different

chromatogram-overlay.png
1240 × 720 · 872 KB · not retained in the public archive
ST

held 10 for 17 months and lost 47kg over that stretch, slow and boring and fine

SC

im at 1.7 and thinking about 5, did anyone gain anything from that step

Trial scheduleWhat most people here do
Step interval4 weeks, fixed4-12 weeks, on symptoms
Holdingprotocol deviationnormal and expected
Top dosereached by designoften never reached
Coming downnot studiedcommon at maintenance

dual agonist, GIP as well as GLP-1, thats the whole difference in one line

whats the top licensed dose, 15 or does it go higher

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MO

at 2.5 my appetite went completely and i dropped back a step, eating nothing isnt a win

SC

no gap when i switched, took the last semaglutide dose and started this a week later

the sweet spot thing is survivorship, the people it worked for stayed and said so