VThorvaldsen

TL3 Regular · Rimini, IT

Reads the primary literature and posts summaries with page numbers. Prefers being corrected to being agreed with.

Joined 6 December 2024 · last posted 3d

132 posts, newest first. Showing up to 150.

Coming back to: Delayed gastric emptying and oral medication absorption: which drugs… Replied, post #67 · Practice › Interactions · 25 Jul 2026 · 0 likes An update on my earlier Delayed gastric emptying and oral post: the pattern held for another six weeks and then stopped, which I did not predict and cannot explain.
Reading order for a first week here, and what to skip until later — what changed since Replied, post #80 · Start Here › Welcome · 24 Jul 2026 · 0 likes Reading order has a well-known answer and a correct answer, and the interesting work is establishing that they are the same. Nobody has done that here yet.
What a certificate commits its issuer to Replied, post #96 · Analytics › COA interpretation · 24 Jul 2026 · 28 likes What fields matter on a certificate: lot number matching the vial, test date, the analytical method stated specifically, the measured result as a number, and the…
Journal club: what we got wrong in an earlier session Replied, post #116 · Evidence › Journal club · 24 Jul 2026 · 3 likes Answering the question post #112 raises rather than the one it answers. Nothing discussed in a session is advice to anybody, and clinician participants here say so…
Revisiting: Protein density versus volume when you cannot eat much Replied, post #86 · Nutrition & Training › Protein & intake · 20 Jul 2026 · 0 likes Adding the measurement that post #84 says would settle it. Adequate protein during a substantial deficit is the part of this conversation that gets least attention and…
What consumer-accessible tests can and cannot determine — a second dataset Replied, post #100 · Analytics › Home & field testing · 19 Jul 2026 · 29 likes Consumer-accessible tests looks different depending on whether you are reading the primary literature or the summaries of it, and the difference is not in our favour.
[2026 update] Regional warehouse stock versus direct despatch Replied, post #136 · Sourcing › Logistics · 16 Jul 2026 · 0 likes Adding the measurement that post #135 says would settle it. The thing about Regional warehouse stock versus direct that took me longest to accept is that a plausible…
NHS criteria and how they are applied in practice Replied, post #31 · Regional › UK & Ireland · 16 Jul 2026 · 0 likes I would keep NHS criteria and the decision it usually gets used for separate in this thread. They are related and they are not the same question, and merging them is…
Insurance and replacement policies, compared Replied, post #80 · Sourcing › Logistics · 11 Jul 2026 · 9 likes Adding the measurement that post #77 says would settle it. Anyone deciding whether a delay is a problem should ask what would change if they waited another week.…
Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Replied, post #85 · Evidence › Journal club · 6 Jul 2026 · 6 likes I will take the caveat as seriously as the claim, which is the point of putting it there.
Risk-of-bias tools and the judgement they conceal — does this still hold? Replied, post #23 · Evidence › Meta-analyses · 6 Jul 2026 · 13 likes The arithmetic in post #22 is right; the assumption feeding it is the part to check. Whatever the answer on Risk-of-bias tools turns out to be, the method for getting…
Historical amylin analogues and what happened to them Replied, post #27 · Compounds › Cagrilintide & amylin analogues · 4 Jul 2026 · 4 likes Confirming post #25 from a second method, which matters more than confirming it from a second person. Amylin signalling is distinct from GLP-1 signalling. Amylin slows…
[2026 update] Area percent versus weight percent: the confusion that causes most arguments Replied, post #66 · Analytics › HPLC & UHPLC · 2 Jul 2026 · 1 like I would call the community position on Area percent versus weight percent likely rather than established, and I would be comfortable defending that hedge.
Documenting a supplier's response to a discrepancy Replied, post #26 · Sourcing › Vendor reports · 29 Jun 2026 · 12 likes Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable. Noting that I have skin in this question…
Pooling trials with different estimands Replied, post #56 · Evidence › Meta-analyses · 28 Jun 2026 · 15 likes Where I would push back on the pooling trials with different estimands consensus is the confidence, not the direction. The direction looks right. The confidence is…
Second pass at: Programming during a large energy deficit Replied, post #41 · Nutrition & Training › Resistance training · 23 Jun 2026 · 28 likes Taking post #40 at face value and following it one step further. Machine-based work is often better tolerated when energy is low and is not inferior for this purpose.…
Prescription portability between countries Replied, post #64 · Access › International · 14 Jun 2026 · 0 likes Narrowing post #63, because the general version has more than one answer. Prescription portability between countries is worth one more sentence than it usually gets,…
Why the titration planner refuses to produce a schedule below a floor Replied, post #84 · Data & Tools › Calculators · 8 Jun 2026 · 0 likes A titration planner is a scheduling aid rather than a clinical recommendation, and any tool that presents one as the other is overstepping. The answer changed when I…
A certificate whose chromatogram axes do not match its stated method — one year on Replied, post #74 · Sourcing › Red flags · 5 Jun 2026 · 0 likes An unexplained discrepancy that the supplier declined to address is a legitimate thing to record, stated as exactly that and nothing more. For what it is worth, the…
Coming back to: Reconciling a supplier certificate with an independent result Replied, post #11 · Sourcing › Vendor reports · 5 Jun 2026 · 5 likes On post #10 — agreed on the reasoning, with one qualification. Report the certificate figure alongside the independent one. The comparison is the point and it is the…
Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #34 · Analytics › Home & field testing · 30 May 2026 · 31 likes Adding the boring version of Lateral-flow and colorimetric approaches, because the interesting version keeps getting posted and the boring one is usually right. Check…
Angle of injection and whether 90 degrees is always right — the long version Replied, post #12 · Practice › Administration · 27 May 2026 · 0 likes If you are new and reading this thread for the answer to Angle of injection: the answer is conditional, the conditions are in the third reply, and the rest of the…
Reflectance and photometric devices: precision in practice — a second dataset Replied, post #33 · Analytics › Home & field testing · 22 May 2026 · 0 likes Lateral-flow devices: like a rapid COVID test. They have a reagent strip and produce a colour result. They are quick but not precise and not intended for quantitative…
Reading a trial's population section before its results Replied, post #41 · Evidence › Trials · 21 May 2026 · 15 likes Post #38 answers the question as asked. The question underneath it is different. Registration before enrolment, with the primary endpoint declared, is what makes…
Documenting a payment dispute without naming and shaming Replied, post #9 · Sourcing › Payments · 21 May 2026 · 0 likes Understood. Thank you for being specific about the limits of it.
Semaglutide formulation: what is in the licensed product besides the peptide Replied, post #8 · Compounds › Semaglutide · 8 May 2026 · 8 likes Counter-ion form matters for the arithmetic and is almost never stated. A vial labelled 5 mg of peptide as an acetate salt and one labelled 5 mg as trifluoroacetate do…
Blind submission and why it changes minds — the long version Replied, post #63 · Sourcing › Independent verification · 8 May 2026 · 0 likes What would change my mind on Blind submission is a second dataset collected by someone with no stake in the first. Until then I hold it loosely and I would rather say…
Follow-up: A parcel that arrived warm: a decision process, not a verdict Replied, post #16 · Practice › Storage & stability · 5 May 2026 · 16 likes Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed.
Common supplements people ask about, assessed one at a time — a second dataset Replied, post #99 · Practice › Interactions · 4 May 2026 · 0 likes Worth separating two things that post #97 runs together. SGLT2 inhibitors: frequently co-administered and relevant to renal and cardiovascular discussion, not to…
Bioimpedance and hydration: why the number moves Replied, post #38 · Outcomes › Body composition · 30 Apr 2026 · 0 likes On bioimpedance and hydration, I would rather understate and be corrected upward than overstate and be quoted. That is a house style here and it is a good one.
What I would want from a home test that does not exist yet — what changed since Replied, post #6 · Analytics › Home & field testing · 28 Apr 2026 · 2 likes Useful. I have added it to my own notes with the date on it.
Converting between mg/mL and units per dose, both directions — the long version Replied, post #102 · Practice › Reconstitution · 24 Apr 2026 · 6 likes Worked example, since the arithmetic is the whole question. Five milligrams into one millilitre is 5 mg/mL. A 0.25 mg dose is 0.05 mL, which is five units on a U-100…
Pinch or no pinch, and how needle length changes the answer — what changed since Replied, post #18 · Practice › Administration · 22 Apr 2026 · 15 likes Building on post #17 rather than restating it. Answering the Pinch question as asked, then the question I think is meant. As asked: yes, with the qualification below.…
Batch numbers that do not match the vial label Replied, post #8 · Sourcing › Red flags · 22 Apr 2026 · 0 likes Two claims get bundled together under batch numbers and they need separating. The descriptive one — this is what was observed — is usually well supported. The causal…
Moderation log format change Replied, post #43 · Meta › Announcements · 10 Apr 2026 · 0 likes Nothing to add on the substance. Thank you for taking the question at face value.
Bug report: the reconstitution calculator and a rounding edge case Replied, post #23 · Data & Tools › Calculators · 4 Apr 2026 · 15 likes Where I part company with post #19, and it is a narrow parting. Tools that run entirely in the browser send nothing anywhere, which matters more to some people here…
Journal club: is percentage weight change the right endpoint? Replied, post #28 · Evidence › Journal club · 31 Mar 2026 · 28 likes The most common failure mode is spending fifty minutes on the effect size and ten on the population. Reversing that ratio would improve most sessions. Caveat:…
Second pass at: Choosing a concentration on purpose rather than by accident Replied, post #55 · Practice › Reconstitution · 25 Mar 2026 · 3 likes Narrowing post #54, because the general version has more than one answer. The arithmetic on Choosing a concentration is the easy part and it is where the errors are,…
CJC-1295 with and without DAC: what the modification does Replied, post #15 · Compounds › Secretagogues & GH axis · 18 Mar 2026 · 0 likes Post #11 and I disagree about the size of the effect, not about the direction. On analysis: these are short peptides and generally straightforward chromatographically,…
Waist circumference technique and its repeatability Replied, post #59 · Outcomes › Progress reports · 4 Mar 2026 · 0 likes Confirming post #57 from a second method, which matters more than confirming it from a second person. Maintenance series are the ones this subcategory needs most and…
Measurement error in home scales, with a worked standard deviation Replied, post #15 · Research Methods › Statistics · 28 Feb 2026 · 0 likes Regression to the mean: if you select people with extreme values (very high or very low), their next measurement is often less extreme just by chance. This can look…
What "marked as solution" means and who gets to mark it — does this still hold? Replied, post #45 · Start Here › Welcome · 21 Feb 2026 · 0 likes If you want a fast orientation, read three solved topics in the subcategory you care about. Solved means somebody said the answer worked, which is more signal than…
Managing an unplanned gap in supply Replied, post #28 · Access › Shortages · 11 Feb 2026 · 31 likes I have three months of notes on managing an unplanned gap and the honest summary is that the trend is real and the week-to-week numbers are noise. I nearly drew the…
Second pass at: What "verified" means on our vendor pages, stated narrowly Replied, post #66 · Sourcing › Vendor reports · 6 Feb 2026 · 13 likes Photograph the vial and the label before opening. It costs ten seconds and it is what turns a report into something checkable. I would not lead a decision with this,…
Adducts: sodium, potassium, and the peak you did not expect — does this still hold? Replied, post #26 · Analytics › Mass spectrometry · 3 Feb 2026 · 0 likes Agreed on Adducts, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption and it does not, and the…
Second pass at: Robustness: the parameters worth deliberately varying Replied, post #44 · Analytics › Method validation · 28 Jan 2026 · 15 likes Everything in post #40 holds. The case it does not cover is the one I have. I keep a log for Robustness specifically because my memory of it turned out to be…
Interpreting a result that disagrees with the supplier's certificate Replied, post #99 · Sourcing › Independent verification · 28 Jan 2026 · 2 likes What a supplier does when asked is itself information, and it is information that a chromatogram cannot provide. If that is already documented somewhere, ignore me and…
The most common factual error about semaglutide on the internet — what changed since Replied, post #14 · Compounds › Semaglutide · 26 Jan 2026 · 6 likes No disagreement from me. Posting only so the question does not look ignored.
Which panel is worth repeating and which is worth ignoring — a second dataset Replied, post #58 · Clinical › Bloodwork · 23 Jan 2026 · 1 like This follows post #55 rather than contradicting it. Add biological variation and analytical imprecision to that base rate and the probability of a meaningless flag on a…
Revisiting: Absolute versus relative contraindications Replied, post #8 · Safety › Contraindications · 14 Jan 2026 · 0 likes That is clearer than the version I had in my head. Thank you.
Journal club: LEADER as the historical anchor Replied, post #21 · Evidence › Journal club · 9 Jan 2026 · 0 likes Where I part company with post #18, and it is a narrow parting. Careful with the language on LEADER. "Not detected" and "not present" are different findings and the…
Second pass at: Adsorptive losses at low concentration, and why dilute solutions are… Replied, post #12 · Practice › Storage & stability · 4 Jan 2026 · 3 likes Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.
Run-in periods and the population they select Replied, post #40 · Evidence › Trials · 25 Dec 2025 · 17 likes Second-hand on run-in periods, so weight it accordingly — someone whose method I trust told me this and I have not verified it myself.
The headache that turns out to be dehydration Replied, post #103 · Nutrition & Training › Hydration & electrolytes · 20 Dec 2025 · 18 likes Appreciated. The plain phrasing does more work here than a longer post would.
How to read a phase 2 result without treating it as a phase 3 result Replied, post #27 · Compounds › Retatrutide · 17 Dec 2025 · 19 likes Whether triple agonism is additive or synergistic is an open question and the published work does not answer it. A phase 2 trial without a dual-agonist comparator arm…
Reading an interaction checker output critically Replied, post #63 · Practice › Interactions · 10 Dec 2025 · 1 like Insulin and sulfonylureas are the interaction that the labelling in this class flags most explicitly, because the risk is additive glucose lowering. That is a…
Tirzepatide in type 2 diabetes: the SURPASS programme, summarised honestly — the long… Replied, post #69 · Compounds › Tirzepatide · 10 Dec 2025 · 4 likes Two questions I would want answered before drawing anything from the Tirzepatide in type 2 diabetes data above: how were the cases selected, and what happened to the…
Second pass at: How to ask a question when you cannot say why you are asking it Replied, post #38 · Start Here › How to Ask · 3 Dec 2025 · 20 likes Useful. I have added it to my own notes with the date on it.
Critiquing an observational claim about a class effect — one year on Replied, post #10 · Evidence › Study critique · 28 Nov 2025 · 17 likes Adding a data point of agreement rather than a data point.
Reading SURMOUNT-1 without the press release Replied, post #81 · Compounds › Tirzepatide · 28 Nov 2025 · 0 likes Narrowing post #80, because the general version has more than one answer. The number people quote for reading SURMOUNT-1 without the press is a central estimate…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #79 · Compounds › Tirzepatide · 16 Nov 2025 · 25 likes Tirzepatide's half-life of roughly five days means steady state is approached in about three weeks rather than four. That is a real difference from semaglutide and it…
Airline travel with a temperature-sensitive injectable Replied, post #14 · Devices › Cold chain · 11 Nov 2025 · 0 likes Confirming post #13 from a second method, which matters more than confirming it from a second person. Where the airline travel reasoning breaks down for me is the step…
Reading SURMOUNT-1 without the press release Replied, post #62 · Compounds › Tirzepatide · 11 Nov 2025 · 9 likes Where I part company with post #60, and it is a narrow parting. I disagree with the framing of reading SURMOUNT-1 without the press above, and I think it is a…
Tracking that stops updating and then resumes Replied, post #44 · Sourcing › Logistics · 9 Nov 2025 · 17 likes Post #42 put the caveat in the right place and I want to underline it. Document outcomes rather than forecasting them. A forecast in this category reads as reassurance…
Insomnia at a dose step: reported experiences Replied, post #23 · Wellbeing › Sleep · 8 Nov 2025 · 4 likes Taking post #20 at face value and following it one step further. The documentation on insomnia is better than this thread and I say that as someone who has posted in…
Second pass at: Circumference measurements as a poor man's composition estimate Replied, post #13 · Outcomes › Body composition · 8 Nov 2025 · 13 likes Where the Circumference measurements reasoning breaks down for me is the step from the group result to the individual case. That step is almost never argued for.
Managing an unplanned gap in supply — what changed since Replied, post #108 · Access › Shortages · 6 Nov 2025 · 0 likes Post #107 is right about the mechanism and I think understates the practical bit. International supply chains: a shortage in one country does not mean shortage in…
Availability by country, dated, with primary sources Replied, post #43 · Access › International · 2 Nov 2025 · 0 likes The claim about availability upthread is stronger than its source supports. I have read the source. The source says "associated with" and the post says "causes".
New subcategory: rationale and scope Replied, post #105 · Meta › Announcements · 24 Oct 2025 · 0 likes Post #104 and I disagree about the size of the effect, not about the direction. A note on how new subcategory gets discussed rather than on new subcategory itself: the…
[2026 update] Splitting an overlong document into two Replied, post #43 · Documentation › Wiki requests · 22 Oct 2025 · 4 likes Coming back to post #42, because the follow-up matters more than the original answer. Second-hand on Splitting an overlong document, so weight it accordingly — someone…
Payment mechanics and the recovery options that do not exist Replied, post #46 · Sourcing › Payments · 20 Oct 2025 · 26 likes Recording the time from payment to dispatch is worth doing, because it is the part of the process most within the supplier's control.
Where to report an adverse event officially, by region — a second dataset Replied, post #38 · Safety › Adverse events · 20 Oct 2025 · 4 likes Reporting an adverse event to the national reporting scheme is possible for anybody and does not require a clinician. Those schemes exist to catch what trials could not.
Tirzepatide and nausea: is the profile genuinely different or just differently reported? Replied, post #14 · Compounds › Tirzepatide · 19 Oct 2025 · 15 likes Injection-site reactions were reported at a low but non-zero rate across the trials. The practical point is that a reaction at one site does not predict a reaction at…
A comparison of home results against a laboratory result on the same vial Replied, post #47 · Analytics › Home & field testing · 9 Oct 2025 · 9 likes Narrowing post #43, because the general version has more than one answer. Lateral-flow devices: like a rapid COVID test. They have a reagent strip and produce a colour…
Availability by country, dated, with primary sources Replied, post #14 · Access › International · 8 Oct 2025 · 30 likes Fair, and the limits you put on it are the part I will remember.
Micronutrient adequacy at low total intake — does this still hold? Replied, post #20 · Nutrition & Training › Protein & intake · 7 Oct 2025 · 33 likes Post #17 is the version of this I will quote in future. One addition. I disagree with the framing of Micronutrient adequacy above, and I think it is a substantive…
Substitution between formats during a shortage Replied, post #70 · Access › Shortages · 6 Oct 2025 · 0 likes Post #66 describes the usual case. This is about the unusual one. Nothing here is medical advice, and decisions about what to do during a supply interruption belong…
How the vendor documentation pages are maintained, and by whom — what changed since Replied, post #67 · Sourcing › Vendor reports · 4 Oct 2025 · 12 likes A note on scope: what I am saying about vendor documentation pages applies to the case in the first post and I would not extend it further without checking.
Payment method and the leverage it gives you, ranked Replied, post #56 · Sourcing › Payments · 22 Sep 2025 · 10 likes Payment method has a well-known answer and a correct answer, and the interesting work is establishing that they are the same. Nobody has done that here yet.
[2026 update] A certificate with no method stated: what can you conclude? Replied, post #3 · marked as the solution · Analytics › COA interpretation · 10 Sep 2025 · 7 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…
Aggregated purity results across four services, with caveats — a second dataset Replied, post #69 · Data & Tools › Datasets · 9 Sep 2025 · 5 likes Publishing the raw records alongside the summary is what makes a dataset checkable. A summary alone asks for trust that nobody has earned.
Second pass at: What "verified" means on our vendor pages, stated narrowly Replied, post #13 · Sourcing › Vendor reports · 6 Sep 2025 · 6 likes Selective submission and selective reporting are the two easiest ways for a result to be shaped, and blinding addresses the first while a commitment to post addresses…
Confounding by indication, explained with a concrete example Replied, post #14 · Evidence › Study critique · 1 Sep 2025 · 12 likes A run-in period that excludes non-responders before randomisation changes what the trial is estimating. It is legitimate design and it must be stated in any summary.…
Freeze-thaw and why one cycle is not the same as five — a second dataset Replied, post #35 · Practice › Storage & stability · 25 Aug 2025 · 0 likes Freeze-thaw: some peptide solutions tolerate freezing poorly because ice crystals damage protein structure. Whether your specific solution tolerates it depends on the…
Gauge and length selection for subcutaneous injection Replied, post #23 · Devices › Syringes & needles · 24 Aug 2025 · 16 likes Adding a null result on gauge and length selection. I looked, carefully, and found nothing, and null results deserve posting precisely because they never are.
[2026 update] What we do not know about retatrutide, listed explicitly Replied, post #61 · Compounds › Retatrutide · 23 Aug 2025 · 8 likes Heart rate increased in a dose-dependent way in the phase 2 work. That is not a footnote — it is one of the specific things phase 3 exists to characterise, and it is…
A ten-fold dose error caught before injection — one year on Replied, post #156 · Devices › Syringes & needles · 5 Aug 2025 · 17 likes Sharps containers are a legal requirement for disposal in several jurisdictions and a sensible precaution everywhere. A rigid sealed container is the minimum.
Second pass at: Why this subcategory is stricter about sourcing than most Replied, post #33 · Compounds › Secretagogues & GH axis · 3 Aug 2025 · 0 likes On analysis: these are short peptides and generally straightforward chromatographically, which means a poor purity result is more likely to reflect the synthesis than…
How to research a compound with no human data without deceiving yourself Replied, post #41 · Compounds › Other compounds · 1 Aug 2025 · 28 likes When "no data" is the complete and final answer: if there is no published human data on a compound, that is the state of knowledge. Hope is not a substitute and…
Asking about a compound your prescriber has not heard of Replied, post #108 · Clinical › Prescriber conversations · 28 Jul 2025 · 0 likes Coming back to post #106, because the follow-up matters more than the original answer. The most useful question anyone here has reported asking: what would make you…
When a tidy document is a signal and when it is decoration — does this still hold? Started this topic · Analytics › COA interpretation · 26 Jul 2025 · 0 likes Asking directly, because I could not find a straight answer: When a tidy document is a signal and when it is decoration — does this still hold? Tidy document keeps…
Coming back to: Semaglutide half-life: where the 165 to 184 hour figure comes from Replied, post #77 · Compounds › Semaglutide · 19 Jul 2025 · 8 likes The mass figure differs between sources because of how the different entities report it. The monoisotopic mass of the bare peptide is one number; the mass including the…
Managing an unplanned gap in supply — what changed since Replied, post #19 · Access › Shortages · 18 Jul 2025 · 13 likes That matches what I have seen, for whatever a single anecdote is worth.
Comparing my trajectory with the trial curves, carefully Replied, post #24 · Outcomes › Progress reports · 14 Jul 2025 · 29 likes Coming back to post #20, because the follow-up matters more than the original answer. Menstrual cycle: for people who menstruate, weight can shift by several pounds…
Cross-border purchase within the EU: the actual rules Replied, post #4 · Access › International · 6 Jul 2025 · 0 likes Adding the measurement that the opening post says would settle it. Import rules for personal quantities are jurisdiction-specific and change without much publicity.…
Reaching a dose and staying there for a year: a longitudinal note — does this still hold? Replied, post #6 · Practice › Dosing & titration · 29 Jun 2025 · 18 likes Escalating before steady state means you are judging a dose you have not yet fully experienced. That is the whole argument against compressing the schedule and it is a…
[2026 update] Mood changes: monitoring, and when to involve a professional Replied, post #11 · Wellbeing › Mental health · 8 Jun 2025 · 24 likes Social and relationship impacts: weight change affects how others perceive and interact with a person. Those impacts are real and can be psychologically significant.…
Pre-registering a personal experiment, seriously Replied, post #106 · Research Methods › N-of-1 designs · 3 Jun 2025 · 22 likes A rolling mean over several days is far more informative than any single reading for anything that varies day to day, which is nearly everything.
Second pass at: Pen dose counters: what a click does and does not guarantee Replied, post #56 · Devices › Pens & autoinjectors · 3 Jun 2025 · 0 likes Answering the question post #54 raises rather than the one it answers. Nothing here is medical advice, and pen technique is the single easiest thing to have…
Pre-registering a personal experiment, seriously Replied, post #81 · Research Methods › N-of-1 designs · 1 Jun 2025 · 16 likes Designing a personal experiment that could actually change your mind: that is the standard for an n-of-1 design. An experiment designed so that any result confirms what…
Pre-registering a personal experiment, seriously Replied, post #62 · Research Methods › N-of-1 designs · 31 May 2025 · 0 likes Narrowing post #59, because the general version has more than one answer. A rolling mean over several days is far more informative than any single reading for anything…
Pages past their review date, listed — does this still hold? Replied, post #30 · Meta › Wiki maintenance · 12 May 2025 · 21 likes Scope creep: if a page is attempting too much, suggesting it split into multiple pages can improve clarity.
Asking about a compound your prescriber has not heard of Replied, post #34 · Clinical › Prescriber conversations · 8 May 2025 · 22 likes Where I part company with post #30, and it is a narrow parting. A second opinion is a normal part of medicine rather than an accusation, and asking how to obtain one is…
Antibiotics and a course of something with delayed emptying Replied, post #30 · Practice › Interactions · 29 Apr 2025 · 0 likes This is the sort of exchange that makes the archive worth searching.
Reading a trial's population section before its results — does this still hold? Replied, post #3 · Evidence › Trials · 10 Apr 2025 · 4 likes On the opening post — agreed on the reasoning, with one qualification. Entry criteria, run-in periods and the self-selection of people willing to enter a multi-year…
Domestic fridge temperature mapping: a cheap experiment — what changed since Replied, post #70 · Devices › Cold chain · 19 Mar 2025 · 3 likes The arithmetic in post #67 is right; the assumption feeding it is the part to check. On Domestic fridge temperature mapping I would separate what is worth knowing from…
A 10 mg vial reconstituted three different ways, compared — the long version Replied, post #24 · Practice › Reconstitution · 17 Mar 2025 · 2 likes Adding the measurement that post #23 says would settle it. Osmolarity and reconstitution: the osmolarity of the reconstituted solution affects comfort on injection.…
Reading an MS report that only gives you a single number Replied, post #30 · Analytics › Mass spectrometry · 16 Mar 2025 · 10 likes Noted, and I have changed what I was going to do on the strength of it.
A supplier that answers analytical questions with restated claims Replied, post #39 · Sourcing › Red flags · 14 Mar 2025 · 15 likes Everything in post #37 holds. The case it does not cover is the one I have. Where somebody posts a concern, ask what would resolve it before arguing about it. Half of…
Coverage for the indication versus for the drug — a second dataset Replied, post #5 · Access › Insurance & coverage · 7 Mar 2025 · 3 likes Coverage for weight management versus diabetes: many formularies cover these compounds for type 2 diabetes but not for weight management. The indication matters and…
Second pass at: Regression to the mean in progress reports Replied, post #75 · Research Methods › Statistics · 4 Mar 2025 · 18 likes Percentages of small denominators should be reported with the denominator. Two out of three is not sixty-seven per cent in any useful sense. It reads as pedantry until…
Validating a method you did not develop — does this still hold? Replied, post #60 · Analytics › Method validation · 1 Mar 2025 · 0 likes Post #56 and I disagree about the size of the effect, not about the direction. Precision and repeatability: within-run and between-run variability of the method.…
What SELECT changed about how semaglutide is discussed, and what it did not Replied, post #24 · Compounds › Semaglutide · 28 Feb 2025 · 3 likes Post #22 and I disagree about the size of the effect, not about the direction. On the injection-day question: the labelling for licensed semaglutide allows the day to…
Journal club: SURMOUNT-1, read without the press release Replied, post #64 · Evidence › Journal club · 20 Feb 2025 · 0 likes Right, and stated more narrowly than I would have dared to state it.
What changed in 2026, by region Replied, post #118 · Access › International · 3 Feb 2025 · 3 likes On post #114 — agreed on the reasoning, with one qualification. If a claim about your region here is out of date, correcting it with a date and a source is the single…
Protein density versus volume when you cannot eat much Replied, post #58 · Nutrition & Training › Protein & intake · 2 Feb 2025 · 31 likes Meeting protein targets on suppressed appetite: this is where the practical difficulty lies. Eating more protein when appetite is suppressed is genuinely hard.…
Telehealth prescribing models in the US Replied, post #53 · Regional › North America · 2 Feb 2025 · 1 like Practical note on telehealth prescribing models: write down what you expect before you look. The number of times I have found what I went looking for is higher than…
Why our vendor pages link the storefront and mark it sponsored Replied, post #22 · Sourcing › Vendor reports · 31 Jan 2025 · 28 likes Coming back to post #20, because the follow-up matters more than the original answer. Do not adjust a reported figure. Post what the laboratory said and put your…
What changed in 2026, by region Replied, post #38 · Access › International · 24 Dec 2024 · 29 likes Confirming post #35 from a second method, which matters more than confirming it from a second person. Temperature-controlled material and long-haul travel is a…
Biased agonism: a real phenomenon, an over-used explanation — what changed since Replied, post #10 · Pharmacology › Receptor biology · 23 Dec 2024 · 0 likes Ghrelin receptor agonism drives growth hormone release in pulses and also increases appetite, which is the effect people most reliably report and least often want. That…
Coming back to: When to suspect the method rather than the sample Replied, post #117 · Analytics › Method validation · 22 Dec 2024 · 2 likes The most useful single question about a method: what would it fail to detect? Every method has an answer and few documents state it. Worth checking against a second…
Persistent vomiting and the threshold for seeking help — one year on Replied, post #11 · Safety › Adverse events · 19 Dec 2024 · 8 likes Adding a note of thanks rather than an opinion. I did not know most of that.
Request: a diff view for wiki revisions Replied, post #30 · Meta › Feature requests · 11 Dec 2024 · 20 likes Adding the measurement that post #27 says would settle it. Adding the boring version of diff view for wiki revisions, because the interesting version keeps getting…
Coming back to: When to suspect the method rather than the sample Replied, post #35 · Analytics › Method validation · 6 Dec 2024 · 5 likes Specificity is the first question: does the method separate the analyte from everything reasonably expected to be present? A method that has not been challenged with…
Coming back to: Preparing for an appointment: one page, three questions Replied, post #100 · Clinical › Prescriber conversations · 15 Nov 2024 · 0 likes Fair, and the limits you put on it are the part I will remember.
Time to steady state after a dose increase Replied, post #123 · Pharmacology › Pharmacokinetics · 5 Nov 2024 · 29 likes Post #122 and I disagree about the size of the effect, not about the direction. Volume of distribution: the theoretical volume the drug distributes into. For…
A page that has drifted out of date and needs a maintainer Replied, post #17 · Documentation › Wiki requests · 10 Oct 2024 · 0 likes Accessibility feedback: if you have trouble accessing or reading a maintained page (screen reader issues, contrast problems, small text) report it. Accessibility…
Irish differences from the UK position Replied, post #12 · Regional › UK & Ireland · 28 Sep 2024 · 19 likes Cross-border movement between the two jurisdictions is not the same as domestic movement within either, and the rules are published rather than inferred. I would want a…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #66 · Analytics › COA interpretation · 26 Sep 2024 · 6 likes An itemised related-substances table with retention times says considerably more about the synthesis than a single total. A total tells you how much is not the main…
Correlation in a self-tracked dataset: what it can support Replied, post #104 · Research Methods › Statistics · 24 Aug 2024 · 8 likes On post #100 — agreed on the reasoning, with one qualification. I have been on both sides of the correlation argument in this category within eighteen months, which…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #22 · Analytics › COA interpretation · 7 Aug 2024 · 18 likes Confirming post #21 from a second method, which matters more than confirming it from a second person. A chromatogram supplied as a small image is legible for peak shape…
Journal club: FLOW and the renal composite, component by component Replied, post #35 · Evidence › Journal club · 12 Jul 2024 · 0 likes Sessions on negative or null results are consistently the most instructive and the hardest to get anyone to attend. I have seen it go both ways, which is why I hedge.