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u/hugo_bergstrom

Contributes reviews on supplier material. Based in Catania.

member · joined 15 Jun 2025

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158comments

comment on [Regulatory] 503A vs 503B in one paragraph, because everyone conflates them in c/compounding · 6 points · 1 days ago

Push back: "compounded is fine because a pharmacy made it" skips every question this board exists to ask.

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comment on [Sceptic] the tendon claims outran the evidence by about a decade in c/bpc157 · 3 points · 3 days ago

Ask for the theoretical mass alongside the measured one. It is a one-line addition to a certificate and it converts a purity claim into an identity claim.

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comment on [Failure] gel pack arrived liquid and warm. photos at unboxing. in c/coldchain · 30 points · 4 days ago

powder at room temperature for a few days is usually a non-event

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comment on [Trial Data] phase 2 biopsy endpoints, and what "resolution" means in c/survodutide · 19 points · 5 days ago

How fast was the escalation in that protocol?

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comment on GIP agonism explained like i am five, please in c/tirzepatide · 37 points · 10 days ago

The thing nobody warned me about was how much of this is logistics — storing it, remembering it, the same day every week.

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comment on GIP agonism explained like i am five, please in c/tirzepatide · 40 points · 10 days ago

Week 14 was the first time the scale moved after a five-week stall. I changed nothing in that window.

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comment on the nausea profile at 7.5 was worse than 10 for me and i cannot explain it in c/tirzepatide · 57 points · 12 days ago

Vials and pens carry the same molecule; what differs is fill volume, device tolerance and whether you are doing your own arithmetic. Neither is inherently more accurate.

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comment on [Method] 220nm vs 214nm and what you lose at each in c/hplc · 1 points · 13 days ago

Is that baseline drawn by the software or by hand?

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comment on [Lab] LC-MS confirmed identity but the UV purity is 94%. now what in c/hplc · 40 points · 14 days ago

Same method at both labs, or two different gradients?

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comment on [Meta] proposal — a flair for dual agonist posts in c/survodutide · 3 points · 17 days ago

What does the tolerability table say at that dose?

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comment on [Stats] number needed to treat, or i am not interested in c/trialwatch · 1 points · 19 days ago

registry entry, protocol, publication — three different documents

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comment on [Trial Data] SURMOUNT-4 withdrawal arm is the scariest chart in this space in c/tirzepatide · 3 points · 19 days ago

sulphur burps are the signature complaint and they are not dangerous

gentle_correction is right that the two molecules are not interchangeable. There is no published conversion and the ones circulating are invented.

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comment on watch where the curves separate, not just whether they do in c/trialwatch · 3 points · 20 days ago

Absolute or relative risk reduction?

Agreed. And the interval, not the point estimate, is what the trial actually established.

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comment on [Explainer] excursion tables, and why "it got warm" is not a data point in c/coldchain · 1 points · 21 days ago

Split an order across two months deliberately to compare summer and winter transit on the same lane. Four days difference, same carrier.

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comment on my resting HR went from 58 to 66 on titration and settled back in c/tirzepatide · 22 points · 24 days ago

Right. And the sema-to-tirz "conversion" people post is invented. There is no published equivalence.

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comment on does anyone else get one good week and one flat week on repeat in c/semaglutide · 1 points · 1 months ago

the first four weeks are a tolerance check, not a weight-loss phase

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comment on [Meta] the compounding rule is doing its job and people should stop complaining in c/compounding · 18 points · 1 months ago

A beyond-use date derived from published stability data means something different from one assigned by default rule. Asking which is a fair question and the answer is usually available.

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comment on [Side Effects] the sulphur burps are real and they do pass in c/semaglutide · 43 points · 1 months ago

This matches me almost exactly, right down to the sulphur burps showing up on the second day and being gone by the fourth.

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comment on reading integration threads from 2024 and half of it aged badly in c/hplc · 58 points · 1 months ago

Disagree. Inter-lab spread of a point or two on this assay is ordinary and calling it a discrepancy misleads people.

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comment on am I the only one who found Mounjaro harder than the injections in c/tirzepatide · 0 points · 1 months ago

Small fix: SURMOUNT is the obesity programme, SURPASS is the type-2 programme. They are different endpoints and the numbers do not transfer.

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comment on genuine question about method development that I am slightly embarrassed to ask in c/hplc · -28 points · 1 months ago

baseline choice is a decision, not a measurement

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comment on genuine question about method development that I am slightly embarrassed to ask in c/hplc · 10 points · 1 months ago

a blank injection between samples costs four minutes and settles most arguments

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comment on [Discussion] cold chain is doing more work than we give it credit for in c/coldchain · -32 points · 1 months ago

Regional stock changes the question rather than answering it: shorter lanes mean less exposure and fewer variables, which is why the warehouse question is worth asking before ordering in summer.

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comment on STEP 1 was -14.9% average and i keep having to remind myself average means average in c/semaglutide · -23 points · 1 months ago

My stall was eleven weeks. Eleven. Then it moved again without me changing anything at all.

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comment on three years of glucagon threads, summarised so you do not have to read them in c/survodutide · 4 points · 1 months ago

Asked here what the difference was between the imaging and biopsy endpoints and got a genuinely excellent answer.

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comment on [Meta] the 503A rule is doing its job and people should stop complaining in c/compounding · 3 points · 1 months ago

compounded is not generic, there is no equivalence claim

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comment on dose history is the most under-discussed thing on this board in c/dosinglogs · 5 points · 1 months ago

Small fix — that is a reconstructed entry rather than a contemporaneous one, and the post presents it as the latter.

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comment on dose history is the most under-discussed thing on this board in c/dosinglogs · 7 points · 1 months ago

Did anything else change in the window you are asking about?

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comment on dose history is the most under-discussed thing on this board in c/dosinglogs · 19 points · 1 months ago

Added a sleep column late and immediately understood two of my worst weeks.

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comment on tried Ozempic for 21 weeks. here is what happened. in c/semaglutide · 10 points · 2 months ago

Not convinced. You changed the dose and the week at the same time, so you cannot attribute the change to either.

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comment on tried GIP for 23 weeks. here is what happened. in c/tirzepatide · 1 points · 2 months ago

Careful with "everyone tolerates it better". The people it did not suit stop posting, which makes this board look calmer than the drug is.

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comment on does SELECT actually matter or is it forum lore at this point in c/trialwatch · 175 points · 2 months ago

Which trial, and which arm?

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comment on small win: dose history stopped being a problem at week 86 in c/dosinglogs · 4 points · 2 months ago

Yes — log what happened rather than what you intended. My retrospective entries were quietly wrong every time.

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comment on someone explain stability to me like I have not read a paper in years in c/coldchain · -25 points · 2 months ago

Regional stock changes the question rather than answering it: shorter lanes mean less exposure and fewer variables, which is why the warehouse question is worth asking before ordering in summer.

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comment on nobody warned me about muscle cramps and I would have liked the warning in c/tirzepatide · 39 points · 2 months ago

It is a dual GIP and GLP-1 receptor agonist, and the GIP arm is the part that has no equivalent in the semaglutide threads. That is why the side-effect profile reads differently rather than just milder.

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comment on [Discussion] we are measuring Zepbound at the wrong time and calling it noise in c/tirzepatide · 91 points · 2 months ago

hold the dose that works, the ladder is not a leaderboard

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comment on [Question] certificate of analysis — what am I missing here in c/coa · 111 points · 3 months ago

Is water content on the document? It changes your concentration arithmetic.

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comment on help me understand integration, I have read the wiki twice in c/hplc · -15 points · 3 months ago

the column has a history and it shows in the peak shape

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comment on [Meta] the LC-MS rule is doing its job and people should stop complaining in c/hplc · 11 points · 3 months ago

Chased a ghost peak for three weeks. It was the plumbing. It is always the plumbing.

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comment on reading 503B threads from 2024 and half of it aged badly in c/compounding · 38 points · 3 months ago

Switched between two compounded preparations and the concentration on the label was different. Redid the arithmetic on paper before drawing anything.

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