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Practice · Side effects · continued

Hair shedding at month three: mechanism and time course — the long version posts 31–55

This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1.

GA
g.amankwahTL220 Jun 2026 · edited#31

Dehydration is the mechanism behind more of the secondary complaints here than people expect. Reduced intake plus vomiting plus a warm week is a straightforward path to feeling dreadful.

A qualification I should have led with rather than closed on.

12 likes 1mo
CT
cannula_traceTL3Regular21 Jun 2026#32
s.kravchenko, post #25: Gallbladder complications: rapid weight loss increases the risk of gallstone formation. The mechanism is not specific to this drug class. The risk is greatest in the first months when weight loss is most rapid. Go to post

Post #30 describes the usual case. This is about the unusual one.

Effects that improve with time and effects that improve with dose reduction are different findings. Working out which you have requires holding the dose steady long enough to see.

Reporting the observation and leaving the explanation open deliberately.

25 likes in reply to #25 1mo
SO
se.okaforTL223 Jun 2026#33

Confirming post #32 from a second method, which matters more than confirming it from a second person.

Source for the Hair shedding figure, since it was asked for. It is in the discussion rather than the abstract, which is why the version circulating is stronger than the paper is.

Reading the surrounding paragraph is worth the two minutes. The authors are more careful than their summarisers.

0 likes 1mo
OF
outline_firstTL3Wiki editor25 Jun 2026#34

I disagree with the framing of Hair shedding above, and I think it is a substantive disagreement rather than a terminological one. Setting out why, so it can be checked.

The reasoning depends on an assumption that is doing a lot of work and is never stated. If the assumption holds, the conclusion follows. I do not think it holds generally.

1 like 1mo
PF
p.fontaineTL226 Jun 2026#35

The published rates come from populations that were titrated on a defined schedule with clinical supervision. Rates from a forum are not comparable and are biased by who chooses to post.

17 likes 1mo
NR
n.rowntreeTL3Regular28 Jun 2026#36
Makinen, post #24: Confirming post #21 from a second method, which matters more than confirming it from a second person. Hair shedding: telogen effluvium associated with rapid weight loss is reported. The timing usually correlates with the speed of weight change rather than the compound specifically. It is usually self-limiting. Happy to be the one who is… Go to post

Before the thread moves on from Hair shedding — what is the sample size behind the claim? I am not being difficult; I have seen the same figure quoted from an n of four and from an n of four hundred.

0 likes in reply to #24 30d
DB
da.bakkerTL229 Jun 2026#37

Post #36 is right about the mechanism and I think understates the practical bit.

For anyone finding this later: the short answer on Hair shedding is that it depends on one thing, and the rest of the thread is people identifying which thing.

0 likes 28d
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BirkelandTL3Regular1 Jul 2026#38

Useful. I had the fact and not the reason, which turns out to be the important half.

4 likes 27d
HC
h.castellanosTL23 Jul 2026#39
m.ilunga, post #14: Hair shedding was covered in the wiki last year and the page has a review date on it, which is a better starting point than my memory of a thread. Go to post

The relationship between symptom burden and outcome is not what people assume. Feeling worse is not evidence of a larger effect and feeling nothing is not evidence of an inactive preparation.

Adding this to the thread rather than to the wiki, because I am not confident enough for the wiki.

4 likes in reply to #14 25d
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KStephanopoulosTL3Regular4 Jul 2026 · edited#40

The published rates come from populations that were titrated on a defined schedule with clinical supervision. Rates from a forum are not comparable and are biased by who chooses to post.

12 likes 24d
JB
j.bhattacharyaTL26 Jul 2026#41

Answering the question post #39 raises rather than the one it answers.

A symptom that appeared at the same time as a dose change and disappeared when the change was reversed is the strongest evidence an individual can produce, and it is still an uncontrolled observation.

Anyone with a larger sample, please post it.

5 likes 22d
SC
s.chowdhuryTL3Regular7 Jul 2026#42

This is the sort of exchange that makes the archive worth searching.

0 likes 21d
AI
an.ibarraTL29 Jul 2026#43
n.chowdhury, post #1: Hair shedding at month three: mechanism and time course — the long version Writing it up because I had to work it out twice and would rather nobody else did. Reading back through what has been written here about Hair shedding, three questions come up every time and only one has ever been answered properly. Listing all three, with what I… Go to post

The published rates come from populations that were titrated on a defined schedule with clinical supervision. Rates from a forum are not comparable and are biased by who chooses to post.

30 likes in reply to #1 19d
FN
formulary_notesTL3Regular10 Jul 2026#44
p.fontaine, post #35: The published rates come from populations that were titrated on a defined schedule with clinical supervision. Rates from a forum are not comparable and are biased by who chooses to post. Go to post

Post #43 is the version of this I will quote in future. One addition.

Answering the Hair shedding question as asked, then the question I think is meant. As asked: yes, with the qualification below. As meant: it depends on how the first measurement was taken.

15 likes in reply to #35 18d
SR
sa.rasmussenTL212 Jul 2026 · edited#45

Taking Hair shedding seriously for a moment rather than deflecting: the honest position is that the community has observations and no controlled comparison, and those two things support very different sentences.

9 likes 16d
FV
first_vialTL113 Jul 2026#46
II
i.ilungaTL215 Jul 2026#47
j.asante, post #6: Post #5 answers the question as asked. The question underneath it is different. The thing about Hair shedding that took me longest to accept is that a plausible mechanism is not evidence of an effect. It is a reason to look, not a result. Go to post

Post #43 put the caveat in the right place and I want to underline it.

Hair shedding: telogen effluvium associated with rapid weight loss is reported. The timing usually correlates with the speed of weight change rather than the compound specifically. It is usually self-limiting.

0 likes in reply to #6 13d
SL
sleep_logTL2Regular16 Jul 2026#48
an.ibarra, post #43: The published rates come from populations that were titrated on a defined schedule with clinical supervision. Rates from a forum are not comparable and are biased by who chooses to post. Go to post

Building on post #47 rather than restating it.

Reading back through the Hair shedding threads from last year, the same three questions come up every time and only one of them has ever been answered properly. That seems like a documentation gap rather than a knowledge gap.

21 likes in reply to #43 11d
GT
g.tammTL218 Jul 2026#49

The relationship between symptom burden and outcome is not what people assume. Feeling worse is not evidence of a larger effect and feeling nothing is not evidence of an inactive preparation.

Happy to expand any of that if it is the useful part.

1 like 10d
FR
figure_reviewTL2Member19 Jul 2026#50

Post #47 answers the question as asked. The question underneath it is different.

Where I have landed on Hair shedding, having got it wrong once in public: the direction is clear, the magnitude is not, and anyone quoting a precise magnitude has borrowed it from somewhere that did not measure it.

0 likes 8d
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sourced_claimsTL3Regular21 Jul 2026 · edited#51

If you are new and reading this thread for the answer to Hair shedding: the answer is conditional, the conditions are in the third reply, and the rest of the thread is worth skipping.

10 likes 7d
RZ
ro.zielinskiTL222 Jul 2026#52
s.chowdhury, post #42: This is the sort of exchange that makes the archive worth searching. Go to post

I read post #48 twice before replying, because I had assumed the opposite.

Fatigue: commonly reported, frequently multifactorial. It is worth asking whether other factors have changed (sleep, training volume, diet adequacy, hydration) before attributing all of it to the compound. Some fatigue resolves with time; some persists.

I would not lead a decision with this, but I would not ignore it either.

22 likes in reply to #42 6d
HO
h.oyelowoTL2Regular24 Jul 2026#53

Smaller meals, less fat, slower eating and stopping earlier than feels natural are the interventions most consistently described as helping. None of them are drug interventions and all of them are about the same mechanism.

0 likes 4d
MR
m.radichTL225 Jul 2026#54
M
microgramsTL2Regular27 Jul 2026#55

Narrowing post #53, because the general version has more than one answer.

Hair shedding some months in is described frequently here and is more consistent with rapid weight loss than with any direct drug effect. That distinction matters because it points at protein and pace rather than at the compound.

If the premise is wrong, everything after it is decoration.

6 likes 1d

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