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constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often outlasts the nausea.

14 questions · sorted by votes

50 votes 3 answers29k views
Why does the constipation outlast the nausea by months when both are supposedly the same mechanism?

The nausea followed exactly the pattern I was told to expect: bad for a fortnight after each dose step, better by week four, essentially gone by month five. The…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

175 questions
maintenance-dose
maintenance-dose

Staying put: the lowest dose that holds a result, the difference between the maximum studied dose and the maximum useful dose, and what the…

44 questions
asked by swab_stopper 16k · 23 months ago
43 votes3 answers18k views
How do I distinguish drug-related constipation from something obstructive, given both present as not going?

I have had slow bowels since starting semaglutide and I have accepted that as the trade. Last week was different and it frightened me: four days with nothing, a hard…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
vomiting
vomiting

Emesis as a reported adverse event: trial incidence, its relationship to dose escalation rate, dehydration risk, and when it stops being a…

14 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

445 questions
asked by grainne_ahearn 13k · 6 months ago
36 votes 3 answers13k views
How much of my constipation is just eating 45% less? Working the arithmetic on residue and fluid

I want to check a hypothesis with numbers rather than argue about mechanisms. The claim I keep reading is that a large part of GLP-1 constipation is simply the…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
nutrition
nutrition

Eating on a suppressed appetite: hitting nutritional targets inside a small energy budget, micronutrient risk, meal structure, and what the trial…

92 questions
hydration
hydration

Fluid intake when thirst and intake cues are both blunted: how much of the early scale drop is fluid, how dehydration confounds a renal panel, and…

14 questions
protein-intake
protein-intake

Protein targets in grams per kilogram, per-meal distribution and the leucine threshold, and the evidence for a higher intake specifically during…

53 questions
asked by lipid_panel_q 44k · 15 months ago
32 votes4 answers11k views
Does holding at 2 mg for sixteen weeks before escalating reduce reflux?

Details up front: 2 mg · sixteen weeks · reflux. I can predict the outcome but I cannot explain it, which means I will get the next case wrong. I would like to know…

titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

444 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
dose-escalation
dose-escalation

The decision to move up a step: what evidence supports a four-week interval, what happens when you compress it, and how trial protocols handled…

88 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by threadlock7 14k · 15 months ago
30 votes 5 answers45k views
What did the placebo arm of STEP 3 report for hair thinning?

For reference: STEP 3 · hair thinning. I want to understand what this actually establishes, as opposed to what it is being used to imply. My concern is that I am…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

913 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by zainab_mustafa 16k · 2.0 years ago
27 votes 3 answers6.9k views
How much of the weight effect is delayed gastric emptying, and is the plateau receptor desensitisation?

Two related mechanism questions I have never seen answered together. First, how much of the weight loss is attributable to delayed gastric emptying as opposed to…

glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

175 questions
plateau
plateau

A stall in progress: distinguishing adaptive thermogenesis from measurement error from adherence drift, how long to observe before changing…

35 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
maintenance-dose
maintenance-dose

Staying put: the lowest dose that holds a result, the difference between the maximum studied dose and the maximum useful dose, and what the…

44 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by syringe_ninety 15k · 3 months ago
25 votes 5 answers5.7k views
When does injection-site erythema stop being a tolerability issue and become a clinical one?

I have kept every message, invoice and document, which I gather is the useful habit. This is a planning question. I know what my options are; I do not know how to…

harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

445 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
pancreatitis
pancreatitis

Acute pancreatitis as a labelled risk: background incidence, the signal in pooled trial and pharmacovigilance data, lipase interpretation, and the…

14 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by Dr_Priya_Raghunathan 94k · 4 months ago
24 votes5 answers6.3k views
Is early satiety on tirzepatide dose-dependent or dose-rate dependent?

Concretely: early satiety · tirzepatide. I want to know whether this is a real physical effect or an artefact of how it is measured. What prompted the question is an…

nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

444 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by k_szabo 45k · 6 months ago
20 votes 3 answers13k views
Does fibre help or worsen constipation at very low intake?

I have kept a symptom diary against dose dates, which turns out to have been the useful thing. Both of these get recommended confidently by different people, which…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
nutrition
nutrition

Eating on a suppressed appetite: hitting nutritional targets inside a small energy budget, micronutrient risk, meal structure, and what the trial…

92 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
asked by seven_day_half 16k · 9 months ago
10 votes 5 answers13k views
Does injection-site erythema at week five of tirzepatide usually resolve without a dose change?

Numbers first: injection-site erythema · five · tirzepatide. I can find plenty of assertions about this and almost no reasoning, which is usually a sign that nobody…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

444 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by marta_szymanska 17k · 14 months ago
8 votes 5 answers4.4k views
Does nausea at week ten of retatrutide usually resolve without a dose change?

Conditions: nausea · ten · retatrutide. I have done this once and I suspect I got away with it rather than got it right. For context: I keep records of every batch,…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

444 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by haze_check 17k · 10 months ago
6 votes 5 answers26k views
What did the placebo arm of TRIUMPH-3 report for constipation?

The particulars: TRIUMPH-3 · constipation. I have the document in front of me and I can read the numbers. What I cannot do is interpret them. I am reasonably…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

913 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by swab_and_wait 15k · 2.0 years ago
3 votes5 answers6.5k views
Why does constipation outlast the nausea by months?

It has now persisted for three weeks, which is what moved this from tolerable to worth asking about. I would like the mechanism, because I want to be able to reason…

constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

175 questions
orforglipron
orforglipron

A non-peptide, orally bioavailable small-molecule GLP-1 receptor agonist studied in the ATTAIN programme. It is not a peptide, which changes…

14 questions
asked by swab_and_wait 15k · 9 months ago
2 votes 5 answers11k views
What is the reported incidence of constipation on cagrilintide in SURMOUNT-4?

What I am working with: constipation · cagrilintide · SURMOUNT-4. I have read the primary source rather than the summary, which has left me with more questions. I…

gi-side-effects
gi-side-effects

The gastrointestinal cluster as a whole - nausea, vomiting, diarrhoea, constipation, reflux, early satiety - with trial incidence rates, dropout…

416 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

913 questions
nausea
nausea

The dominant tolerability signal in every trial of the class: incidence, timing relative to a dose step, duration, and the distinction between…

346 questions
constipation
constipation

Slowed transit as a consequence of delayed gastric emptying and reduced intake: incidence figures, fibre and hydration evidence, and why it often…

14 questions
asked by fresh_bac 13k · 2.1 years ago
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