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Clinical · Special populations · continued

Second pass at: Pregnancy and pregnancy planning: contraindication and washout posts 91–120

This is a continuation of a long topic, addressed by post number rather than by page. Start at post 1 · go to the accepted answer.

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t.steenkampTL2Member26 Jan 2026#91
l.vukovic, post #41: Genetic and ancestry-related differences in response are asked about regularly and the published evidence is thin enough that the honest answer is short. Go to post

Nothing in this subcategory is medical advice and the questions asked here are precisely the ones that need an individual assessment.

Adding a source would improve this post and I do not have one to hand.

1 like in reply to #41 6mo
AK
ak.kravchenkoTL226 Jan 2026#92

Dedicated trials in under-studied populations are the only real remedy and several are ongoing, which is worth saying rather than speculating.

I have said this before in a thread nobody could find, so it is worth repeating.

6 likes 6mo
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ambient_draftTL3Regular26 Jan 2026#93

Picking up post #90: that is the part I would want checked first.

The thing about Pregnancy and pregnancy planning 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.

23 likes 6mo
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mi.amankwahTL226 Jan 2026#94

Agreed, and I will stop repeating the version of this I had been repeating.

0 likes 6mo
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LJankowiakTL3Regular26 Jan 2026#95
f.sjoberg, post #53: Pregnancy and pregnancy planning came up in a thread eighteen months ago and was answered well. I cannot find it, which is itself the problem, so here is the reconstruction. Go to post

The most useful contribution here is usually a citation to whichever published document comes closest, with a plain statement of how far it is from the question.

It is a small point and it changes the answer, which is an awkward combination.

0 likes in reply to #53 6mo
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a.cardosoTL226 Jan 2026#96
mi.amankwah, post #75: Post-surgical populations, particularly after procedures affecting the gastrointestinal tract, interact with a delayed-emptying mechanism in ways that need specialist input. Go to post

Careful with the language on Pregnancy and pregnancy planning. "Not detected" and "not present" are different findings and the first is a statement about the method.

3 likes in reply to #75 6mo
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buffer_reviewTL3Regular26 Jan 2026#97

This follows post #95 rather than contradicting it.

Medullary thyroid carcinoma history: an absolute contraindication because of the preclinical findings in rodent toxicology. The history (personal or family, especially multiple endocrine neoplasia type 2) is an important screening question.

16 likes 6mo
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a.norgaardTL226 Jan 2026#98

Worth separating two things that post #96 runs together.

Trying to state the Pregnancy and pregnancy planning position in a way that someone who disagrees would recognise as fair, because I do not think the version in this thread passes that test.

32 likes 6mo
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trough_indexTL3Regular26 Jan 2026#99
v.nascimento, post #65: I read post #61 twice before replying, because I had assumed the opposite. Two things can be true about Pregnancy and pregnancy planning at once: the mechanism is plausible and the evidence for the size of the effect is thin. Most of the argument here is people defending the first against attacks on the second. Go to post

Narrowing post #98, because the general version has more than one answer.

Pregnancy and pregnancy planning sits at the boundary between what this community can usefully discuss and what it cannot, and I think it falls on the discussable side, narrowly.

6 likes in reply to #65 6mo
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f.novakTL226 Jan 2026#100

Everything in post #96 holds. The case it does not cover is the one I have.

Pregnancy and breastfeeding are the clearest cases where the answer is that the trials excluded them and the labelling reflects that exclusion.

15 likes 6mo
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s.ostergaardTL226 Jan 2026#101

Following, with nothing to contribute beyond having asked the same thing elsewhere.

8 likes 6mo
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bias_varianceTL4Biostatistician26 Jan 2026 · edited#102

An update on my earlier Pregnancy and pregnancy planning post: the pattern held for another six weeks and then stopped, which I did not predict and cannot explain.

18 likes 6mo
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m.steinerTL226 Jan 2026#103

Post #100 is the version of this I will quote in future. One addition.

Pregnancy and planning: these compounds are not approved for use in pregnancy. Planning windows (how long to wait before attempting pregnancy) are not formally established. Conservative approaches wait several months to allow clearance.

A modest claim, modestly supported.

0 likes 6mo
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f.demirTL2Regular26 Jan 2026#104
bias_variance, post #102: An update on my earlier Pregnancy and pregnancy planning post: the pattern held for another six weeks and then stopped, which I did not predict and cannot explain. Go to post

Where I part company with post #102, and it is a narrow parting.

Distinguishing three things in the Pregnancy and pregnancy planning discussion that keep getting used interchangeably: the observation, the proposed mechanism, and the recommendation that gets attached to both.

0 likes in reply to #102 6mo
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a.iyerTL226 Jan 2026#105

The strongest argument against my own position on Pregnancy and pregnancy planning, stated as well as I can state it, since nobody else has yet.

4 likes 6mo
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r.mcalisterTL3Regular26 Jan 2026#106

Answering the question post #102 raises rather than the one it answers.

Extrapolating a point estimate to somebody well outside the enrolled range should be described as an extrapolation every time it is done.

I would rather be precise about what I do not know than vague about what I do.

13 likes 6mo
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i.balogunTL226 Jan 2026#107

Building on post #104 rather than restating it.

What I would tell a new member reading about Pregnancy and pregnancy planning for the first time: the confident posts are not the reliable ones, and the reliable ones are longer.

26 likes 6mo
DT
dexa_twice_yearlyTL3Regular26 Jan 2026#108
v.malinowski, post #10: Bookmarking this. I will come back when I have something worth adding. Go to post

Pregnancy and pregnancy planning would be much easier to settle if anyone reported the denominator. Almost nobody reports the denominator.

0 likes in reply to #10 6mo
SD
s.dziedzicTL226 Jan 2026#109
h.lindqvist, post #45: I read post #43 twice before replying, because I had assumed the opposite. The number people quote for Pregnancy and pregnancy planning is a central estimate presented without its interval, and the interval is wide enough that the estimate is nearly uninformative on its own. Go to post

Narrowing post #108, because the general version has more than one answer.

Post-surgical populations, particularly after procedures affecting the gastrointestinal tract, interact with a delayed-emptying mechanism in ways that need specialist input.

If anyone has run this properly I would rather read that than my own guess.

18 likes in reply to #45 6mo
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so.cardosoTL226 Jan 2026#110

Everything in post #106 holds. The case it does not cover is the one I have.

Adding a small correction to the Pregnancy and pregnancy planning summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor that matters.

0 likes 6mo
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b.correiaTL227 Jan 2026#111
s.ostergaard, post #101: Following, with nothing to contribute beyond having asked the same thing elsewhere. Go to post

The bit of Pregnancy and pregnancy planning that nobody enjoys is that the answer changes depending on what you are trying to decide with it. Say what the decision is and the thread will converge.

4 likes in reply to #101 6mo
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buffer_shiftTL1Member27 Jan 2026#112
ak.kravchenko, post #77: Picking up post #76: that is the part I would want checked first. I read the earlier replies on Pregnancy and pregnancy planning twice before writing this, because I had assumed the opposite and wanted to be sure I was disagreeing with what was said rather than what I expected. Go to post

Body weight at the extremes of the studied range affects exposure and the trials rarely reported enough to say by how much.

I would want the raw data before agreeing with my own summary of it.

0 likes in reply to #77 6mo
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st.dialloTL227 Jan 2026#113

I have three months of notes on Pregnancy and pregnancy planning and the honest summary is that the trend is real and the week-to-week numbers are noise. I nearly drew the opposite conclusion from the first fortnight.

33 likes 6mo
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HHidalgoTL2Member27 Jan 2026 · edited#114

The arithmetic in post #113 is right; the assumption feeding it is the part to check.

Medullary thyroid carcinoma history: an absolute contraindication because of the preclinical findings in rodent toxicology. The history (personal or family, especially multiple endocrine neoplasia type 2) is an important screening question.

17 likes 6mo
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c.serranoTL227 Jan 2026#115
ambient_draft, post #93: Picking up post #90: that is the part I would want checked first. The thing about Pregnancy and pregnancy planning 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

Where I part company with post #113, and it is a narrow parting.

Reframing Pregnancy and pregnancy planning slightly, because I think the disagreement is about the question rather than the answer. If the question is "does it happen", yes. If it is "how often", nobody here knows.

1 like in reply to #93 6mo
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t.nardoneTL3Regular27 Jan 2026#116

Something worth flagging about Pregnancy and pregnancy planning: the strongest-sounding claims in this thread are the ones with no source attached, which is the usual pattern and not a coincidence.

0 likes 6mo
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n.achebeTL227 Jan 2026#117

That matches what I have seen, for whatever a single anecdote is worth.

25 likes 6mo
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j.vandermolenTL3Regular27 Jan 2026#118

Being outside the studied population does not mean a treatment is unsafe. It means the usual evidence is not available and the reasoning has to be explicit.

12 likes 6mo
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m.mwangiTL227 Jan 2026#119
f.kimani, post #84: Noted, and thank you for writing it out rather than summarising it. Go to post

I had written a reply contradicting post #118 and deleted it. Here is what survived.

The documentation on Pregnancy and pregnancy planning is better than this thread and I say that as someone who has posted in the thread.

11 likes in reply to #84 6mo
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g.tanakaTL3Regular27 Jan 2026#120

Confirming post #118 from a second method, which matters more than confirming it from a second person.

Pregnancy and pregnancy planning has a well-known answer and a correct answer, and the interesting work is establishing that they are the same. Nobody has done that here yet.

3 likes 6mo