vialroom

#retatrutide 2026-06-15

Monday48 messages8 participantstimes are UTC
Highlights from this day
  • noct.titrate — the purity spread across lots worries me more than the molecule does 19:08
  • low_and_slow — reconstituted the 2 vial to 4mg/ml specifically so i could take 7.5 without measuring crumbs i went up too fast, got a fortnight of nothing but nausea, and dropped… 19:15
  • tb500_tobias — anyone tracking blood pressure alongside the heart rate 20:16
T5

is there any long term safety data at all or is it phase 2 and hope

LA

my resting rate went up 3 bpm in the first month and came back most of the way by month 14

the phase 2 weight result was larger than what the earlier agonists reported, in a smaller shorter trial

T5

there is no long term safety data, phase 2 and an ongoing phase 3 programme is what exists, not advice obviously

T5

my resting heart rate is up about 6 bpm, did that settle for anyone

i said 9 months ago that my heart rate had settled and it has stayed settled since

T5

stopped for 2 months and restarted at half my old dose, the ramp was easier second time

T5

blood pressure stayed flat for me while heart rate moved, which i didnt expect

T5

update on the earlier thing held at 2 for 21 months and it never plateaued for me, which i cant explain

BS

quick one i went up too fast, got a fortnight of nothing but nausea, and dropped back two steps

LA

whats a sensible starting point, im seeing everything from 0.5 to 2

NT

slightly off topic but whats the half life like, is it weekly the same way

the purity spread across lots worries me more than the molecule does

baseline  58
wk 2      61
wk 4      64
wk 6      67
wk 8      66
wk 10     65   (held dose from wk 7)
LA

reconstituted the 2 vial to 4mg/ml specifically so i could take 7.5 without measuring crumbs
i went up too fast, got a fortnight of nothing but nausea, and dropped back two steps

📉17🧊3
BS

sat at 2 for 5 months rather than climbing and it kept working, so i never went up

T5

no idea whether the heart rate settles for everyone, mine did and one log isnt data, thats just me

came off at 25 weeks because my resting rate stayed elevated and i didnt like it

T5

anyone tracking blood pressure alongside the heart rate

Cited study
Triple–Hormone-Receptor Agonist Retatrutide for Obesity — A Phase 2 Trial
New England Journal of Medicine · 2023
48 weeks, dose-ranging. A Phase 2 result is not a safety record.

no long term data

did anyone come off because of the heart rate

phase 2 was still trending at the end which is why the phase 3 readout matters more than usual
the phase 2 weight result was larger than what the earlier agonists reported, in a smaller shorter trial

AA

low and slow here means smaller steps than i ever used on tirzepatide, thats the received wisdom

energy expenditure isnt something i could feel, though my sleep tracker disagreed with me

slightly off topic but stepping in 7.5 increments instead of doubling is the only thing i would change if i started again

AA

appetite suppression at 2 was stronger than my tirzepatide experience at a comparable point, we shall see

SB

triple agonist, GLP-1 and GIP and glucagon. the glucagon arm is the part with no long history

LA

the heart rate thing is real enough that i mention it whenever someone asks about starting

[edited]

does the glucagon arm explain the heart rate or is that unrelated

AA

how slow is low and slow here, four weeks a step or longer

[edited]
💀2🙏1🧊2

how long before people saw the first change at 7.5