vialroom

#tirzepatide 2026-05-13

Wednesday73 messages14 participantstimes are UTC
Highlights from this day
  • lipase_lore — SURMOUNT-OSA was the sleep apnoea trial and it is not a weight headline however its quoted 17:32
  • salt_bridge — ok so restarted at 2.5 after 2 months off and the first two doses reminded me why titration exists, from memory 20:25
  • surpass_two — restarted at 2.5 after 2 months off and the first two doses reminded me why titration exists 21:41
BS

the 15 vial in 1ml gives 2.5mg/ml which puts 15 on 12 units, nice round numbers, we shall see

MP

40 units of a 10 solution is a lot of volume and i check that one twice every single time

[edited]
BS

GI was noticeably easier for me than semaglutide at what felt like the same appetite effect

OS

i sat at 7.5 for 10 months and never needed more, which is where the folklore comes from, from memory

lot-log.csv
783 rows · not retained in the public archive
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plateaued at 33 weeks the same way i did on semaglutide, so i doubt its compound specific

start low anyway

i argued the sweet spot was nonsense and then spent 15 months at 7.5 not needing more

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LL

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

OS

at 1 my appetite is gone entirely, did anyone go down rather than up

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

Cited study
Tirzepatide Once Weekly for the Treatment of Obesity (SURMOUNT-1)
New England Journal of Medicine · 2022
72 weeks, tirzepatide 5, 10 and 15mg against placebo.
ST

im at 5 and thinking about 2, did anyone gain anything from that step

[edited]
PP

update on the earlier thing held 10 for 14 months and lost 17kg over that stretch, slow and boring and fine

EM

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

ST

unrelated but 12 did nothing extra over 10 for me and that still holds a year later

BS

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

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

how many weeks at 7.5 before you knew it was enough

5 was where i first noticed it properly, 2.5 did almost nothing for me

BS

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

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

BR

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

wk 1-4    2.5mg
wk 5-8    5.0mg
wk 9-20   7.5mg   <- stayed here
wk 21-24  10.0mg  (no extra benefit for me)
wk 25+    7.5mg   (came back down)

easier gi for me

went back to semaglutide after 13 months because the cost difference mattered more than the GI

7.5 gang

whats the plateau pattern here, same as semaglutide or different

OS

switched from 2.4 semaglutide and started at 2.5, took the slow route, never regretted it, take that with a pinch of salt

EM

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

NT

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

[edited]
wk 1-4    2.5mg
wk 5-8    5.0mg
wk 9-20   7.5mg   <- stayed here
wk 21-24  10.0mg  (no extra benefit for me)
wk 25+    7.5mg   (came back down)

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

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

[edited]
HM

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

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

MP

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

MP

while im here licensed top is 15 weekly, past that is not a licensed dose and nobody here can tell you what it does, still working it out
licensed top is 15 weekly, past that is not a licensed dose and nobody here can tell you what it does

EM

no clean conversion
i went to 15 and came back to 10, more suppression wasnt more useful for me

SB

ok so restarted at 2.5 after 2 months off and the first two doses reminded me why titration exists, from memory

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for the archive 15 is the top

SB

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

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start low anyway

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.

went back to semaglutide after 17 months because the cost difference mattered more than the GI

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15 is the top

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folklore probably

7.5 gang