Posting this under the heading it deserves: The nausea timeline across the first four weeks, with a tabulated log Everything below is what sits behind that.
Reading back through what has been written here about nausea timeline, three questions come up every time and only one has ever been answered properly.
Listing all three, with what I think the state of the answer is for each, so the thread can start further along than the last one did.
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.
Somebody will have a better source than mine, and I hope they post it.
The opening post is the version of this I will quote in future. One addition.
Source for the nausea timeline 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.
Where I part company with post #2, and it is a narrow parting.
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.
This has been discussed before and I could not find the thread, so, again.
Timeline matters: onset, duration, pattern over days or weeks, relationship to injection and to meals all provide information that "I have nausea" does not. Posting those details gets better responses than reporting the symptom alone.
Before the thread moves on from nausea timeline — 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.
I had written a reply contradicting post #6 and deleted it. Here is what survived.
A symptom that starts weeks after a dose has been stable is a different observation from one that starts after an escalation, and it deserves a different explanation.
It reads as pedantry until the day it does not.
Narrowing post #8, because the general version has more than one answer.
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.
It is one reading of the data and not the only reasonable one.
Worth separating nausea timeline as a question about the compound from nausea timeline as a question about the documentation. They get answered by different people and only one of them is answerable here.
Pancreatitis: a rare but serious event with a specific presentation (epigastric pain, back pain, elevated lipase). If this constellation of findings appears, stopping the drug and seeking immediate evaluation is appropriate. Do not interpret this as "likely" — it is rare — but recognize the pattern if it appears.
I am aware this is the third time this month I have made this point.
Constipation is reported at least as often as nausea and is discussed a fraction as much. Fluid, fibre and movement are the boring answers and they are the ones that work.
Reporting the observation and leaving the explanation open deliberately.
Post #9 and I disagree about the size of the effect, not about the direction.
The reason nausea timeline keeps being re-asked is that the answer is conditional and people quote it without the condition. It is not that the answer is unknown.
Nausea timeline is well covered in the tag pages, and the older discussions are better than the recent ones because they were argued out properly. Worth twenty minutes before adding to this one.
Nausea: the most common side effect and the most dose- and titration-dependent one. It is usually most prominent in the first 24 to 48 hours after injection and attenuates as the dose is held stable. At each escalation step it often resets briefly before attenuating again.
I have separated what I observed from what I concluded, which does not always happen.
Post #13 put the caveat in the right place and I want to underline it.
Injection site reaction: local erythema, nodules, or induration at injection sites is reported by some people. Site rotation, avoiding reinjection into the same area for weeks, and allowing areas that react to recover all reduce the frequency.
Answering the question post #17 raises rather than the one it answers.
Small correction to my own earlier position on nausea timeline. I had the units the wrong way round, which changes the conclusion by an order of magnitude and therefore changes it entirely.
The arithmetic in post #17 is right; the assumption feeding it is the part to check.
The question underneath nausea timeline is usually "how would I tell?" rather than "what is true?", and that one has a method attached to it.
Write down what you would expect to see under each hypothesis before you collect anything. If they predict the same observation, collecting it will not help.
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 be corrected if someone holds better data than mine.
I had written a reply contradicting post #20 and deleted it. Here is what survived.
The bit of nausea timeline 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.
Picking up post #22: that is the part I would want checked first.
Recognition and grading: nausea ranges from "noticeable" to "limiting". Constipation ranges from mild to severe. Having language to describe the magnitude helps you track whether something is worsening or stable and helps your clinician understand what you are reporting.
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.
Reframing nausea timeline 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.
Severe, persistent abdominal pain, especially radiating to the back, is in a different category from ordinary gastrointestinal upset and is a reason to seek medical assessment rather than to post about it.
Adding it in case it saves somebody the afternoon it cost me.
Thank you for the correction. I would rather find out here than later.
Worth separating two things that post #24 runs together.
Adding what did not work for me on nausea timeline, since the failures never get written up and they are half the useful information.
Building on post #26 rather than restating it.
Constipation is reported at least as often as nausea and is discussed a fraction as much. Fluid, fibre and movement are the boring answers and they are the ones that work.
Pancreatitis: a rare but serious event with a specific presentation (epigastric pain, back pain, elevated lipase). If this constellation of findings appears, stopping the drug and seeking immediate evaluation is appropriate. Do not interpret this as "likely" — it is rare — but recognize the pattern if it appears.
If the premise is wrong, everything after it is decoration.