vialroom

#tirzepatide 2026-02-15

Sunday76 messages14 participantstimes are UTC
Highlights from this day
  • VialBot — Recon calculator: 40mg in 2.5ml = 2mg/ml. 20:51
  • LC_MS_Lena — the sweet spot argument is really about effect per side effect, not a magic number 20:57
  • tarpit_tam — no gap when i switched, took the last semaglutide dose and started this a week later 21:14
TT

whats the plateau pattern here, same as semaglutide or different

7.5 gang

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the 5 vial in 2.5ml gives 2mg/ml which puts 15 on 15 units, nice round numbers

TT

did going from 2.5 semaglutide to 5 of this feel like a step down for anyone

did anybody switch back to semaglutide after trying this

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

LM

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

RS

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

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how did people handle the 2.5 to 5 jump

LM

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

[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)

restarted at 2.5 after 23 months off and the first two doses reminded me why titration exists

15 is the top

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

TT

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

DT

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

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

TT

update on the earlier thing at 15 the GI came back for me, so my easier profile claim only applies below that
the 2.5 to 5 step was the roughest one for me and everything after was easier

VO

held 10 for 17 months and lost 5kg over that stretch, slow and boring and fine, ymmv

WV

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

sorry to jump in €120 for a 20 vial is roughly what ive paid for the last year

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

how long before the dual thing was noticeable to you

SURMOUNT is weight

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

my Janoshik result on a MKM vial came in at 98.6 which is why i keep buying from them

update on the earlier thing anyone stopped at 10 and stayed there for months

WV

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

does switching from semaglutide need a gap or do you just start
the 2.5 to 5 step was the roughest one for me and everything after was easier

*Medutest not the other one

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

VO

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

is SURMOUNT-OSA the sleep apnoea one

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.

anyone tracked whether the GI difference held at the top doses

AN

went back to semaglutide after 1 months because the cost difference mattered more than the GI

AN

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

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CH

anyone got a 2 recon they like for the 40 vials

Cited study
Continued Treatment with Tirzepatide for Maintenance of Weight Reduction (SURMOUNT-4)
JAMA · 2024
Randomised withdrawal after a 36-week lead-in. Pairs with STEP 4.
LM

im at 0.5 and thinking about 7.5, did anyone gain anything from that step

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LM

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

back after 4 months, do i restart at 2.5 or pick up near where i left off

VB

Recon calculator: 40mg in 2.5ml = 2mg/ml.

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LM

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

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

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TT

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

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

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LM

coming off semaglutide, is there a conversion or do i restart at 2.5

[edited]
LM

checked the units twice, your mileage will differ

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LM

is the sweet spot argument about effect or about side effects

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

PT

slightly off topic but switched from 15 semaglutide and started at 2.5, took the slow route, never regretted it

LM

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

10 was enough, thats just me

[edited]

is the 40 vial the common one or do people use 30

titrate slow

VB

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

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DT

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

same plateau here

TT

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

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)