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Is vomiting on ecnoglutide dose-dependent or dose-rate dependent?

Asked 21 Jun 2024Modified 21 months agoViewed 52k times
41

Concretely: vomiting · ecnoglutide.

I understand the observation; what I do not understand is the mechanism behind it.

I have read the two review articles that come up first and both assert this without a citation to a primary source.

So what is the mechanism, and how well established is it?

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ET
askedellis_thorne17k1721 Jun 2024
How long since the last dose increase? The timing is most of the diagnosis here. – Dr_Nadia_Farsi 5 months ago
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5 Answers

Accepted answer first, then by votes
112

Accepted answer

The short version: usually escalation-related, usually self-limiting, and dangerous mainly through dehydration.

Oral rehydration solutions work by glucose-coupled sodium co-transport, which continues to function when secretion is deranged. That is why the glucose-to-sodium ratio matters and a high-sugar sports drink is not equivalent.

Local reaction versus infection

FeatureLocal reactionSterile abscessCellulitis
OnsetHours to 2 daysDays1–4 days, progressive
WarmthAbsent or minimalMildMarked
ExpansionStatic or shrinkingSlowExpanding
TextureFirm, flat or raisedFluctuantDiffuse, indurated
Systemic featuresNoneNoneFever, malaise possible
ActionObserve, rotate siteClinical reviewSame-day clinical review

Warning signs that convert this from a nuisance to a clinical problem: inability to keep fluids down for more than a few hours, reduced urine output, dizziness on standing, confusion, or severe abdominal pain.

Vomiting rates in the trial programmes are reported separately from nausea and are consistently lower and more dose-dependent.

The renal risk here is volume, not toxicity. That is the mechanism to watch.

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answered · acceptedDr_Lena_Ostrowska38k2710 Oct 2024
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98

The part that matters: anti-emetics are a clinical decision and not a self-management step.

Trial incidence for vomiting runs at roughly a third to a half of the nausea rate depending on agent and dose, and it is more concentrated in the escalation phase than nausea is.

Dental enamel erosion from repeated vomiting is a real if unglamorous consequence; rinsing with water rather than brushing immediately is the standard advice.

Oral rehydration solution composition is standardised by the World Health Organization and rests on glucose-coupled sodium transport.

The caveat is that persistent vomiting is a clinical situation and this is not the place to manage one.

Do not escalate the dose while this is happening.

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SI
answeredsample_id17k2723 Jun 2024
48

Mechanically, the relevant risk chain is vomiting to volume depletion to reduced renal perfusion to a rising creatinine, which is how most acute renal events in this class occur.

Repeated vomiting is the mechanism behind most reported acute kidney injury in this class. The renal event is a volume event, not a direct toxicity.

Stated carefully, fluid lost in vomit carries sodium at roughly 60 millimoles per litre and potassium at rather less, so replacing it with plain water alone dilutes plasma sodium rather than restoring balance.

Volume depletion as the mechanism for acute creatinine rise is basic renal physiology and explains the pattern of renal reports in this class.

Nothing here is medical advice.

Small frequent sips of an oral rehydration solution, not large volumes of water.

edited 20 Oct 2024 by ivo_paunovic — removed a claim I could not source

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IP
answeredivo_paunovic16k2729 Sept 2024
7This is the first explanation of the timing pattern that has actually made sense to me. – nine_point_nine 2 months ago
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39

The honest answer is that a day of it is unpleasant and that several days of it needs help.

An episode of vomiting several days after a dose, with no escalation and no other explanation, is not the typical pattern and deserves attention rather than tolerance.

If fluids will not stay down for several hours, that is the threshold. Get help.

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RS
answeredrota_site36k2718 Sept 2024
8Same experience here, different supplier. – nkem_obiora 3 months ago
7Worth flagging that this presents differently in people who titrated faster than the label. – marta_okonkwo 31 days ago
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36

Answer first: vomiting is less common than nausea, is more strongly dose-related, and matters chiefly because of what it does to fluid and electrolyte balance.

A practical home formulation is about six level teaspoons of sugar and half a level teaspoon of salt in one litre of water, taken in small frequent sips rather than in volumes that provoke another episode.

Electrolyte composition of gastric and intestinal secretions is published and is the basis for replacement calculations.

Anti-emetics interact with other medication and are a prescriber decision.

Rinse rather than brush after an episode. Enamel is not replaceable.

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answeredivo_paunovic16k277 Sept 2024

Your answer

Ask PeptideStack is a static archive. Posting is closed, but the norms are worth stating: answer the question that was asked, show your working, cite the trial or the certificate, and say plainly where the evidence runs out.

Not medical advice. Research-use-only compounds are not approved for human use.