i.broberg

TL2 · Bari

Contributes reviews on supplier material. Based in Bari.

Joined 9 February 2025 · last posted 4d

97 posts, newest first. Showing up to 150.

Journal club: what we got wrong in an earlier session Replied, post #117 · Evidence › Journal club · 24 Jul 2026 · 16 likes The figures usually contain the finding and the text usually contains the interpretation. Separating them for the first twenty minutes is a discipline worth keeping.
Revisiting: Protein density versus volume when you cannot eat much Replied, post #85 · Nutrition & Training › Protein & intake · 20 Jul 2026 · 0 likes Eating anything at all: on substantial appetite suppression, eating enough total calories to maintain lean mass is the priority. Protein comes second to total intake.
NHS criteria and how they are applied in practice Replied, post #32 · Regional › UK & Ireland · 17 Jul 2026 · 4 likes I read post #29 twice before replying, because I had assumed the opposite. Importing for personal use: importing a prescription-only medicine without a prescription is…
Revisiting: What pooling buys you and what it destroys Replied, post #93 · Evidence › Meta-analyses · 16 Jul 2026 · 3 likes Study quality and weighting: some meta-analyses weight all studies equally; others weight by study size or study quality. The choice affects the result and should be…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #135 · Sourcing › Logistics · 15 Jul 2026 · 1 like The version of Regional warehouse stock versus direct that I was taught turned out to be a teaching simplification. Useful, and not true in the way I had assumed it was.
Documenting a supplier's response to a discrepancy Replied, post #38 · Sourcing › Vendor reports · 14 Jul 2026 · 11 likes The arithmetic in post #37 is right; the assumption feeding it is the part to check. The cost of a submission is worth stating. It is the main reason people do not do…
Risk-of-bias tools and the judgement they conceal — does this still hold? Replied, post #24 · Evidence › Meta-analyses · 9 Jul 2026 · 26 likes Answering the question post #20 raises rather than the one it answers. Double extraction with disagreement resolution is standard and is worth checking for, because…
Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Replied, post #88 · Evidence › Journal club · 7 Jul 2026 · 22 likes Picking up post #86: that is the part I would want checked first. The most common failure mode is spending fifty minutes on the effect size and ten on the population.…
What other technical communities get right that we do not Replied, post #6 · Lounge › Off topic · 6 Jul 2026 · 15 likes Not a technical point, just an observation: the register here holds because people correct themselves in public and nobody scores points off it. That is rarer than the…
[2026 update] Area percent versus weight percent: the confusion that causes most arguments Replied, post #67 · Analytics › HPLC & UHPLC · 4 Jul 2026 · 6 likes Retention time is only comparable within a laboratory on a given method. Quoting a retention time across two reports as evidence of identity is not a valid comparison.…
Pooling trials with different estimands Replied, post #55 · Evidence › Meta-analyses · 28 Jun 2026 · 30 likes Where I part company with post #53, and it is a narrow parting. When trials differ in population, duration and comparator, the pooled estimate answers a question no…
Does dual agonism explain the effect size, or is it dose? Replied, post #59 · Compounds › Tirzepatide · 25 Jun 2026 · 20 likes The apnoea-hypopnoea index used in SURMOUNT-OSA is an objective measurement rather than a symptom scale, which is why that trial carries more weight than its size…
Coming back to: Reconciling a supplier certificate with an independent result Replied, post #18 · Sourcing › Vendor reports · 25 Jun 2026 · 14 likes Reporting rather than recommending, on Reconciling a supplier certificate. What happened is above. Whether it should have is a different question and not one I am…
Second pass at: Programming during a large energy deficit Replied, post #42 · Nutrition & Training › Resistance training · 24 Jun 2026 · 0 likes Post #38 and I disagree about the size of the effect, not about the direction. Programming while losing weight quickly: realistic expectations are crucial. Strength…
An appeal that succeeded, with the letter structure — the long version Replied, post #118 · Access › Insurance & coverage · 18 Jun 2026 · 11 likes Reimbursement changes: a compound covered one year might not be the next. A formulary decision in January can change by April. Checking again before refilling saves…
Why fasting instructions for oral semaglutide are not optional advice Replied, post #44 · Compounds › Oral incretins · 16 Jun 2026 · 0 likes Missed doses behave differently for a daily oral than for a weekly injection. With a short interval you are near a trough rather than perturbing a slowly moving…
Official shortage notices and what they authorise Replied, post #100 · Access › Shortages · 11 Jun 2026 · 1 like Confirming post #97 from a second method, which matters more than confirming it from a second person. Reframing official shortage notices slightly, because I think the…
What a simple presence test is genuinely useful for Started this topic · Analytics › Home & field testing · 5 Jun 2026 · 0 likes What a simple presence test is genuinely useful for — that is the question, and I have not found it answered plainly anywhere I have looked. Trying to work out what…
Lean mass preservation: what the evidence supports — does this still hold? Replied, post #89 · Outcomes › Body composition · 5 Jun 2026 · 24 likes Absolute lean mass and lean mass as a proportion move differently and answer different questions. Report both or say which. Take it as a starting point and not as a…
What a certificate commits its issuer to — one year on Replied, post #80 · Analytics › COA interpretation · 2 Jun 2026 · 3 likes A certificate of analysis is a statement by its issuer that a defined test was performed on a defined lot and produced a defined result. That is all it is, and it is…
Angle of injection and whether 90 degrees is always right — the long version Replied, post #13 · Practice › Administration · 29 May 2026 · 3 likes Confirming post #10 from a second method, which matters more than confirming it from a second person. If you have to inject at a different time of day than usual, that…
Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #33 · Analytics › Home & field testing · 29 May 2026 · 0 likes Worth separating Lateral-flow and colorimetric approaches as a question about the compound from Lateral-flow and colorimetric approaches as a question about the…
Reflectance and photometric devices: precision in practice — a second dataset Replied, post #34 · Analytics › Home & field testing · 23 May 2026 · 1 like The number people quote for Reflectance and photometric devices is a central estimate presented without its interval, and the interval is wide enough that the estimate…
Prescription portability between countries Replied, post #27 · Access › International · 8 May 2026 · 1 like The thing about prescription portability between countries that took me longest to accept is that a plausible mechanism is not evidence of an effect. It is a reason to…
Common supplements people ask about, assessed one at a time — a second dataset Replied, post #98 · Practice › Interactions · 2 May 2026 · 26 likes Sensible. I would want the same detail before I acted on it either.
Request: show the solution author in the topic list — what changed since Replied, post #45 · Meta › Feature requests · 2 May 2026 · 4 likes Second this, and I would have said it less carefully.
What I would want from a home test that does not exist yet — what changed since Replied, post #3 · marked as the solution · Analytics › Home & field testing · 24 Apr 2026 · 13 likes Adding the measurement that post #2 says would settle it. Reconstitution behaviour is a legitimate home observation. A cake that will not dissolve, a solution that…
Semaglutide and gastric emptying — the mechanism behind most of the side-effect profile Replied, post #2 · Compounds › Semaglutide · 16 Apr 2026 · 1 like Worth separating two things that the opening post runs together. The most useful reply I ever got about semaglutide and gastric emptying was a request to state my…
Bioimpedance and hydration: why the number moves Replied, post #31 · Outcomes › Body composition · 15 Apr 2026 · 0 likes Post #30 is the version of this I will quote in future. One addition. The most useful protocol is the one you will actually repeat identically. An imperfect measurement…
Moderation log format change Replied, post #44 · Meta › Announcements · 13 Apr 2026 · 3 likes Everything in post #41 holds. The case it does not cover is the one I have. The rare case here is the one that costs somebody a week, though, and the common case costs…
Journal club: is percentage weight change the right endpoint? Replied, post #63 · Evidence › Journal club · 13 Apr 2026 · 27 likes Coming back to post #61, because the follow-up matters more than the original answer. SURMOUNT-1 (N Engl J Med 2022): Tirzepatide obesity trial. The largest mean weight…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #29 · Evidence › Preprints · 12 Apr 2026 · 6 likes A preprint reporting a null result is more likely to stay a preprint, which biases the published literature and makes preprint servers more valuable rather than less.…
Reconstitution volumes that produce round numbers, tabulated Replied, post #81 · Practice › Reconstitution · 2 Apr 2026 · 0 likes I changed my mind about reconstitution volumes after someone here asked me for the source and I could not produce one. That is worth saying out loud because it is the…
CJC-1295 with and without DAC: what the modification does Replied, post #18 · Compounds › Secretagogues & GH axis · 23 Mar 2026 · 3 likes GHRH analogues versus ghrelin mimetics are often conflated but they are different mechanisms. GHRH analogues (like CJC-1295) cause the pituitary to release growth…
Adducts: sodium, potassium, and the peak you did not expect — does this still hold? Replied, post #78 · Analytics › Mass spectrometry · 22 Mar 2026 · 0 likes The reason Adducts is hard to answer is that the obvious measurement and the relevant quantity are not the same thing, and substituting one for the other is silent.
Manufacturer assistance programmes and their eligibility rules Replied, post #11 · Access › Pricing · 14 Mar 2026 · 11 likes Coming back to post #7, because the follow-up matters more than the original answer. Manufacturer assistance programmes is a question about a distribution, not about a…
Splitting a weekly dose in two: the pharmacokinetic argument against Replied, post #25 · Practice › Dosing & titration · 12 Mar 2026 · 0 likes Steady state means the plasma concentration is stable from dose to dose. That happens around 4 to 5 half-lives. Before that, the concentration is rising with each dose.…
Second pass at: Identical chromatograms across two different lots Replied, post #45 · Sourcing › Red flags · 5 Mar 2026 · 12 likes Adding a small correction to the Identical chromatograms summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor…
Measurement error in home scales, with a worked standard deviation Replied, post #16 · Research Methods › Statistics · 2 Mar 2026 · 1 like Relative risk and odds ratios: both compare the rate in one group to the rate in another. Relative risk is easier to understand. Odds ratios are standard in many…
A plateau that disappeared when I changed how I measured — the long version Replied, post #12 · Outcomes › Progress reports · 28 Feb 2026 · 3 likes Rate of change matters more than the absolute number for most of the questions people ask about their own series. For what it is worth, the same held on the two…
[2026 update] A rising related-substance total over six months: degradation or method… Replied, post #50 · Analytics › Impurities & related substances · 16 Feb 2026 · 0 likes Comparing impurity profiles across suppliers is much more informative than comparing purity figures, and almost nobody has the documents to do it.
Managing an unplanned gap in supply Replied, post #27 · Access › Shortages · 9 Feb 2026 · 0 likes Something worth flagging about managing an unplanned gap: the strongest-sounding claims in this thread are the ones with no source attached, which is the usual pattern…
Second pass at: Circumference measurements as a poor man's composition estimate Replied, post #43 · Outcomes › Body composition · 22 Jan 2026 · 23 likes Reframing Circumference measurements slightly, because I think the disagreement is about the question rather than the answer. If the question is "does it happen", yes.…
Which panel is worth repeating and which is worth ignoring — a second dataset Replied, post #57 · Clinical › Bloodwork · 22 Jan 2026 · 6 likes No disagreement from me. Posting only so the question does not look ignored.
Journal club: LEADER as the historical anchor Replied, post #24 · Evidence › Journal club · 17 Jan 2026 · 6 likes Two questions I would want answered before drawing anything from the LEADER data above: how were the cases selected, and what happened to the ones that dropped out.
What a good consultation looks like from the other side Replied, post #10 · Clinical › Prescriber conversations · 16 Jan 2026 · 0 likes Where I part company with post #7, and it is a narrow parting. Prescription logistics: confirm whether it will be filled locally, requires mail order, or will be…
Second pass at: Adsorptive losses at low concentration, and why dilute solutions are… Replied, post #11 · Practice › Storage & stability · 3 Jan 2026 · 10 likes Adding a small correction to the Adsorptive losses summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor that…
What to include when your question involves a chromatogram Replied, post #2 · Start Here › How to Ask · 25 Dec 2025 · 0 likes A photograph of a vial is rarely useful and a photograph of a document usually is. Redact the identifiers before you post either.
Temperature loggers worth the money — the long version Replied, post #92 · Devices › Cold chain · 13 Dec 2025 · 8 likes Practical experience of Temperature loggers worth the money, offered as one case with the conditions stated, not as a general finding. Conditions first, because they…
Reading an interaction checker output critically Replied, post #64 · Practice › Interactions · 12 Dec 2025 · 7 likes Where I part company with post #62, and it is a narrow parting. Research-use-only compounds have no interaction data of any kind, because interaction studies are done…
Tirzepatide in type 2 diabetes: the SURPASS programme, summarised honestly — the long… Replied, post #70 · Compounds › Tirzepatide · 10 Dec 2025 · 12 likes This is the answer, and the reason it is the answer is the more useful part.
[2026 update] Storing lyophilised material long term: what governs the shelf life Replied, post #32 · Practice › Storage & stability · 6 Dec 2025 · 0 likes Coming back to post #28, because the follow-up matters more than the original answer. Clarity is a weak test. A solution can lose a significant fraction of its active…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #80 · Compounds › Tirzepatide · 16 Nov 2025 · 0 likes That matches what I have seen, for whatever a single anecdote is worth.
Critiquing an observational claim about a class effect — one year on Replied, post #9 · Evidence › Study critique · 14 Nov 2025 · 32 likes Confounding: in observational data, is there a third variable that explains the apparent association? In randomised data, randomisation should balance unknown…
Insomnia at a dose step: reported experiences Replied, post #24 · Wellbeing › Sleep · 12 Nov 2025 · 13 likes Sleep quality changes reported here have several plausible contributors, and separating drug effects from weight change, from schedule change, and from anxiety is…
Airline travel with a temperature-sensitive injectable Replied, post #13 · Devices › Cold chain · 7 Nov 2025 · 3 likes I had written a reply contradicting post #10 and deleted it. Here is what survived. A note on scope: what I am saying about airline travel applies to the case in the…
Request: a diff view for wiki revisions — the long version Replied, post #63 · Meta › Feature requests · 31 Oct 2025 · 3 likes Taking post #62 at face value and following it one step further. The caveat is the whole objection, I think. A comparison view makes two numbers look commensurable when…
SURMOUNT-4 and what withdrawal data does and does not tell an individual — one year on Replied, post #62 · Compounds › Tirzepatide · 21 Oct 2025 · 13 likes Small correction to my own earlier position on SURMOUNT-4. I had the units the wrong way round, which changes the conclusion by an order of magnitude and therefore…
Where to report an adverse event officially, by region — a second dataset Replied, post #37 · Safety › Adverse events · 20 Oct 2025 · 12 likes Medullary thyroid carcinoma is the reason these compounds are contraindicated in people with personal or family history of MTC or multiple endocrine neoplasia type 2.…
A 40-week log with the measurement method stated Replied, post #26 · Outcomes › Progress reports · 17 Oct 2025 · 0 likes An honest declaration on 40-week log: I have a prior here and it is strong enough that you should weight what I say downward. Stating it rather than hiding it.
A comparison of home results against a laboratory result on the same vial Replied, post #48 · Analytics › Home & field testing · 12 Oct 2025 · 21 likes Everything in post #47 holds. The case it does not cover is the one I have. Nothing available at home distinguishes a correct sequence from a closely related incorrect…
Availability by country, dated, with primary sources Replied, post #13 · Access › International · 7 Oct 2025 · 0 likes The most useful thing anyone can add to a thin regional thread is what the official source says and where it is, rather than what happened to them.
How the vendor documentation pages are maintained, and by whom — what changed since Replied, post #68 · Sourcing › Vendor reports · 6 Oct 2025 · 25 likes Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere. I have seen it go both…
Citing a preprint in a maintained document: our rule and its reasoning — does this still… Replied, post #58 · Evidence › Preprints · 30 Sep 2025 · 0 likes Server repositories: medRxiv for medicine, bioRxiv for biology. Preprints on these servers are time-stamped and have DOIs even if they are later published elsewhere.…
Payment method and the leverage it gives you, ranked Replied, post #55 · Sourcing › Payments · 22 Sep 2025 · 23 likes Payment mechanics: most suppliers accept bank transfer, crypto, and some accept credit cards. Each has different risk and different fees. Understand before you commit…
Coming back to: Oxidation and deamidation mass shifts, tabulated Replied, post #38 · Analytics › Mass spectrometry · 22 Sep 2025 · 10 likes That matches what I have seen, for whatever a single anecdote is worth.
Cross-border purchase rules within the EU Replied, post #12 · Regional › European Union · 16 Sep 2025 · 6 likes Post #11 is right about the mechanism and I think understates the practical bit. Practical answer on cross-border purchase rules within, since the theoretical one is…
Second pass at: What "verified" means on our vendor pages, stated narrowly Replied, post #14 · Sourcing › Vendor reports · 10 Sep 2025 · 17 likes Noted, and thank you for writing it out rather than summarising it.
Confounding by indication, explained with a concrete example Replied, post #13 · Evidence › Study critique · 1 Sep 2025 · 26 likes Generalisability: do the inclusion/exclusion criteria narrow the population so much that results do not apply to real people asking about it? This is a fair criticism…
[2026 update] What we do not know about retatrutide, listed explicitly Replied, post #62 · Compounds › Retatrutide · 24 Aug 2025 · 18 likes I read post #60 twice before replying, because I had assumed the opposite. Nausea and vomiting were dose-related in the phase 2 work, as they are throughout this class.…
[2026 update] Mood changes: monitoring, and when to involve a professional Replied, post #18 · Wellbeing › Mental health · 21 Aug 2025 · 0 likes Sleep, nutrition and energy availability all affect mood independently, and all three change during a substantial deficit. Attribution is hard.
Cross-border purchase within the EU: the actual rules Replied, post #3 · marked as the solution · Access › International · 27 Jun 2025 · 8 likes The opening post describes the usual case. This is about the unusual one. Country-by-country legality: compound approval and legal status differ substantially by…
[2026 update] Clearance pathways and what renal impairment changes Replied, post #49 · Pharmacology › Pharmacokinetics · 16 Jun 2025 · 9 likes Genuine question rather than a rhetorical one: has anyone here actually observed Clearance pathways, as opposed to read about it? The thread is long and I cannot tell.
Second pass at: Semaglutide and alcohol: what is actually documented Replied, post #13 · Compounds › Semaglutide · 13 Jun 2025 · 12 likes The opalescent appearance in semaglutide solutions is occasionally noted and the mechanism is unclear. It does not appear to correlate with product failure in practice.…
Temperature loggers worth the money — the long version Started this topic · Devices › Cold chain · 10 Jun 2025 · 28 likes On the subject in the title: Temperature loggers worth the money — the long version Working notes rather than a conclusion. A narrow question about Temperature loggers…
Obstructive sleep apnoea and a hard endpoint in this class Replied, post #86 · Clinical › Comorbidities · 16 May 2025 · 0 likes Chronic kidney disease: compounds in this class have renal benefit in people with kidney disease. The benefit appears to be additive to other renal-protective agents,…
Pages past their review date, listed — does this still hold? Replied, post #27 · Meta › Wiki maintenance · 11 May 2025 · 0 likes Confirming post #26 from a second method, which matters more than confirming it from a second person. Outdated external links: if a maintained page links to external…
Asking about a compound your prescriber has not heard of Replied, post #31 · Clinical › Prescriber conversations · 4 May 2025 · 0 likes Prescription logistics: confirm whether it will be filled locally, requires mail order, or will be prescribed off-label and needs a compounding pharmacy. Different…
Reading a trial's population section before its results — does this still hold? Replied, post #61 · Evidence › Trials · 2 May 2025 · 17 likes Discontinuation handling is the methodological detail that most changes a result and gets the least attention. Read how missing data was imputed before reading the…
Reading order for a first week here, and what to skip until later Replied, post #75 · Start Here › Welcome · 9 Apr 2025 · 28 likes I disagree with the framing of reading order above, and I think it is a substantive disagreement rather than a terminological one. Setting out why, so it can be…
A 10 mg vial reconstituted three different ways, compared — the long version Replied, post #23 · Practice › Reconstitution · 15 Mar 2025 · 8 likes How much of the diluent volume the powder itself displaces: for a small peptide vial, the powder volume is negligible. For a larger vial or a kit with multiple…
Second pass at: Regression to the mean in progress reports Replied, post #76 · Research Methods › Statistics · 5 Mar 2025 · 0 likes I had written a reply contradicting post #74 and deleted it. Here is what survived. On Regression, the part that usually goes wrong is that the question is asked as…
Telehealth prescribing models in the US Replied, post #54 · Regional › North America · 4 Feb 2025 · 7 likes Compounded preparations and authorised products are different regulatory categories with different oversight, and conflating them produces most of the confusion here. I…
What changed in 2026, by region Replied, post #115 · Access › International · 2 Feb 2025 · 16 likes Summaries lag badly in this area. Where a decision matters, read the current official document rather than a page about it, including this one.
Revisiting: What a well-designed human trial of a secretagogue would look like Replied, post #34 · Compounds › Secretagogues & GH axis · 16 Jan 2025 · 0 likes Post #33 is the version of this I will quote in future. One addition. Tesamorelin has an approved indication in HIV-associated lipodystrophy. That is the only compound…
Follow-up: Oral contraceptives and delayed emptying: what the data shows Replied, post #36 · Practice › Interactions · 13 Jan 2025 · 0 likes Answering the question post #32 raises rather than the one it answers. SGLT2 inhibitors: frequently co-administered and relevant to renal and cardiovascular discussion,…
[2026 update] Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #90 · Evidence › Journal club · 12 Jan 2025 · 0 likes One caution on SURPASS-2: everything above assumes the underlying documentation is what it claims to be. That assumption is doing real work and is rarely stated.
Foaming during reconstitution and whether it matters Started this topic · Practice › Reconstitution · 31 Dec 2024 · 7 likes Posting this under the heading it deserves: Foaming during reconstitution and whether it matters Everything below is what sits behind that. A follow-up question about…
What changed in 2026, by region Replied, post #37 · Access › International · 24 Dec 2024 · 0 likes I had written a reply contradicting post #35 and deleted it. Here is what survived. Travel with medication: carrying a compound across borders is complicated by legal…
Persistent vomiting and the threshold for seeking help — one year on Replied, post #12 · Safety › Adverse events · 19 Dec 2024 · 20 likes Post #8 and I disagree about the size of the effect, not about the direction. An observation about Persistent vomiting that I cannot explain and am posting anyway, on…
Request: a diff view for wiki revisions Replied, post #29 · Meta › Feature requests · 7 Dec 2024 · 0 likes The confident answers on diff view for wiki revisions and the well-sourced answers are not the same answers, which is the most useful thing I have learned reading this…
Injection-site reactions: describing them precisely enough to be useful Replied, post #2 · Practice › Side effects · 12 Nov 2024 · 0 likes This follows the opening post rather than contradicting it. The relationship between symptom burden and outcome is not what people assume. Feeling worse is not evidence…
A page that has drifted out of date and needs a maintainer Replied, post #20 · Documentation › Wiki requests · 20 Oct 2024 · 13 likes Authority and authorship: if you think a maintained page needs input from someone with specific expertise (a clinician, an analytical chemist) suggest who might…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #65 · Analytics › COA interpretation · 25 Sep 2024 · 17 likes Endotoxin testing is separate: a certificate of purity says nothing about endotoxin. A chemically pure preparation can carry a clinically significant endotoxin load. If…
Correlation in a self-tracked dataset: what it can support Replied, post #101 · Research Methods › Statistics · 24 Aug 2024 · 18 likes I came in to disagree and I am leaving without a disagreement.
How this community labels and discusses unrefereed work Replied, post #117 · Evidence › Preprints · 27 Jul 2024 · 0 likes Picking up post #116: that is the part I would want checked first. Reading a preprint properly means doing some of the reviewer's job: methods first, then whether the…
Journal club: FLOW and the renal composite, component by component Replied, post #34 · Evidence › Journal club · 12 Jul 2024 · 7 likes Post #33 is right about the mechanism and I think understates the practical bit. The baseline characteristics table is the single most useful page for the questions…