vialroom

#tirzepatide 2026-01-07

Wednesday61 messages12 participantstimes are UTC
Highlights from this day
  • ghent_gradient — the two compounds arent interchangeable week for week even if the effect ends up similar the 2.5 to 5 step was the roughest one for me and everything after was easier 16:59
  • LC_MS_Lena — went back to semaglutide after 8 months because the cost difference mattered more than the GI 17:18
  • ring_size_down — the GIP explanation for easier nausea is plausible and i still treat it as a story not a fact 17:56
LM

unrelated but switched from 1.7 semaglutide and started at 2.5, took the slow route, never regretted it

CC

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

[edited]
CC

start low anyway

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.

switched last year

VB

Archive lookup: thirty_min_wait first appears in this channel on 2025-03-04.

at 5 my appetite is gone entirely, did anyone go down rather than up

TM

at 2 my appetite went completely and i dropped back a step, eating nothing isnt a win

TM

follow up coming off semaglutide, is there a conversion or do i restart at 2.5
switched from 12 semaglutide and started at 2.5, took the slow route, never regretted it

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

🎉2
RS

update on the earlier thing is the 15 vial the common one or do people use 5

anyone got a 2.5 recon they like for the 40 vials

SURMOUNT was the weight programme and SURPASS was diabetes, thats the split people mix up
i argued the sweet spot was nonsense and then spent 22 months at 7.5 not needing more

RS

the 30 vial in 0.5ml gives 4mg/ml which puts 1.7 on 25 units, nice round numbers, thats just me

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

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

SS

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

SS

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

SS

5 did nothing

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)

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

no clean conversion

SS

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

folklore probably

LM

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

5💀6🔥1

GIP plus GLP-1

lot-log.csv
408 rows · not retained in the public archive
GG

the switch felt like a step down at first and then caught up around week 14

Cited study
Tirzepatide for Obstructive Sleep Apnea and Obesity (SURMOUNT-OSA)
New England Journal of Medicine · 2024
AHI as the primary endpoint, with and without PAP therapy.

10 was enough

7.5 gang

📈1🤝14😂1
LM

went back to semaglutide after 8 months because the cost difference mattered more than the GI

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.
❤️18🧪6👍18
GG

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

weights-monthly.csv
354 rows · not retained in the public archive
GG

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

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

🤝18⚠️2🎉3

right so did anybody switch back to semaglutide after trying this

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

coming back to this how long before the dual thing was noticeable to you

RS

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

🤝7❤️15
CO

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

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

📉15
RS

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

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

PS

plateaued at 5 weeks the same way i did on semaglutide, so i doubt its compound specific

RS

back after 25 months, do i restart at 2.5 or pick up near where i left off

[edited]
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
SF

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

i argued the sweet spot was nonsense and then spent 8 months at 7.5 not needing more

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