s.lindqvist

TL2 · Zadar

Contributes reviews on supplier material. Based in Zadar.

Joined 17 March 2025 · last posted 4h

81 posts, newest first. Showing up to 150.

How the vendor documentation pages are maintained, and by whom Replied, post #3 · Sourcing › Vendor reports · 28 Jul 2026 · 0 likes On the opening post — agreed on the reasoning, with one qualification. Testing service selection: Janoshik gives purity with chromatogram. Medutest gives combined…
What I would want from a home test that does not exist yet — what changed since Replied, post #104 · Analytics › Home & field testing · 21 Jul 2026 · 0 likes Thank you for taking the time. That was more work than a reply usually is.
Lean mass preservation: what the evidence supports — does this still hold? Replied, post #115 · Outcomes › Body composition · 15 Jul 2026 · 6 likes The most useful protocol is the one you will actually repeat identically. An imperfect measurement repeated consistently beats a better one repeated carelessly.
Follow-up: How compounding permissions changed when supply normalised Replied, post #3 · Sourcing › Regulatory · 9 Jul 2026 · 21 likes Good question, well framed, and I would like to see it answered properly.
A site rotation scheme that is easy enough to actually follow Replied, post #108 · Practice › Administration · 7 Jul 2026 · 5 likes Taking post #105 at face value and following it one step further. Bleeding at the injection site: normal and usually minimal. A little blood at the needle site after…
Why the timeline is on the right and not the left — what changed since Replied, post #69 · Meta › Site feedback · 7 Jul 2026 · 3 likes The documentation on timeline is better than this thread and I say that as someone who has posted in the thread.
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #60 · Sourcing › Independent verification · 3 Jul 2026 · 10 likes Building on post #59 rather than restating it. Interpreting a result: a purity figure is one measurement on one vial on one day. Agreement across two services is much…
Pancreatitis history and the risk calculus Replied, post #22 · Safety › Contraindications · 24 Jun 2026 · 11 likes Somebody's condition being on a list does not settle the decision, and somebody's condition being absent from one does not either. I am reporting what happened, not…
Primary endpoint hierarchies and why order matters — one year on Replied, post #24 · Evidence › Trials · 24 Jun 2026 · 0 likes A trial that answers a slightly different question from the one you have is the normal situation rather than a failure of the trial. The skill is describing the gap…
Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #17 · Analytics › Impurities & related substances · 22 Jun 2026 · 21 likes Post #15 is right about the mechanism and I think understates the practical bit. Storage-related degradation and synthesis-related impurity look different on a…
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #84 · Sourcing › Vendor reports · 14 Jun 2026 · 0 likes Answering the question post #82 raises rather than the one it answers. Do not adjust a reported figure. Post what the laboratory said and put your interpretation in a…
What to include when your question involves a chromatogram — one year on Replied, post #37 · Start Here › How to Ask · 14 Jun 2026 · 0 likes Five questions in one post gets you one answer: the easiest one, usually not the one you needed most. Post them separately or pick the one that depends on the others…
Carryover and the ghost peak from last week's standard — what changed since Replied, post #26 · Analytics › HPLC & UHPLC · 12 Jun 2026 · 6 likes Post #25 is right about the mechanism and I think understates the practical bit. What would change my mind on Carryover is a second dataset collected by someone with no…
MS/MS sequence confirmation: what it costs and when it is worth it Replied, post #2 · Analytics › Mass spectrometry · 6 Jun 2026 · 4 likes This follows the opening post rather than contradicting it. What mass accuracy establishes: the measured mass is consistent with a specific composition. What it does…
Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #73 · Data & Tools › Datasets · 31 May 2026 · 0 likes My experience of community side-effect dataset contradicts the reply above. I am posting it as a data point rather than as a refutation, because one person's experience…
What TRIUMPH is designed to answer, and why we should not pre-empt it — does this still… Replied, post #27 · Compounds › Retatrutide · 26 May 2026 · 1 like Phase 2 sample sizes are not adequate for safety characterisation of a novel triple agonist. Phase 3 is where that question gets answered. Using phase 2 results to make…
Follow-up: Comparing two chromatograms from different laboratories, properly Replied, post #30 · Analytics › HPLC & UHPLC · 21 May 2026 · 24 likes Post #27 answers the question as asked. The question underneath it is different. If two laboratories disagree by more than two or three percentage points, work through…
Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #24 · Analytics › Method validation · 17 May 2026 · 4 likes Everything in post #22 holds. The case it does not cover is the one I have. Where a pharmacopoeial monograph exists, a method that follows it inherits a great deal of…
What I would want from a home test that does not exist yet — what changed since Replied, post #14 · Analytics › Home & field testing · 8 May 2026 · 23 likes Where a home observation and an independent result disagree, the independent one is measuring something more specific. That does not make the home observation useless —…
The 2.5 mg starting dose is not a therapeutic dose — why that matters Replied, post #99 · Compounds › Tirzepatide · 26 Apr 2026 · 11 likes The version of 2.5 mg starting dose that I was taught turned out to be a teaching simplification. Useful, and not true in the way I had assumed it was.
Interim analyses and stopping rules Replied, post #20 · Evidence › Trials · 20 Apr 2026 · 8 likes Taking interim analyses and stopping rules seriously for a moment rather than deflecting: the honest position is that the community has observations and no controlled…
A supplier who responds to a discrepancy with silence — what changed since Replied, post #24 · Sourcing › Red flags · 31 Mar 2026 · 2 likes Unresponsiveness: a supplier that does not reply to reasonable requests for documentation or clarification is showing you something about how they operate. Same…
Five questions in one post gets you one answer — how to split them Replied, post #43 · Start Here › How to Ask · 30 Mar 2026 · 15 likes Post the arithmetic you already did. Half the questions here are answered by someone spotting which line of your working is wrong, and that is impossible if you only…
[2026 update] Thyroid function tests during substantial weight change Replied, post #25 · Clinical › Bloodwork · 28 Mar 2026 · 0 likes Repeat before acting is standard practice for an isolated abnormal result on most analytes, and it is standard for a reason. The part I am sure of is shorter than the…
Rotating between abdomen, thigh and upper arm: absorption differences — one year on Replied, post #38 · Practice › Administration · 26 Mar 2026 · 23 likes Nothing in this subcategory is medical advice and none of it is a substitute for a demonstration from somebody qualified to give one, which most prescribers will do…
Pharmacy supply in the UK and the questions you will be asked Replied, post #90 · Regional › UK & Ireland · 25 Mar 2026 · 7 likes The most useful reply I ever got about pharmacy supply was a request to state my units. It sounds like pedantry and it has saved me twice.
The most useful thing you learned here that was not the answer you came for Replied, post #28 · Lounge › Off topic · 19 Mar 2026 · 9 likes Politics and public policy: healthcare policy that affects access to these compounds is relevant here. Partisan politics is not. That holds under the stated conditions…
An ABAB design with a data table and honest limitations — a second dataset Replied, post #77 · Research Methods › N-of-1 designs · 18 Mar 2026 · 29 likes It does not tell you about anybody else, which is why aggregating these accounts does not produce evidence of the kind people want it to. That is what I would do. It…
Introducing myself: pharmacist, sceptic, reluctant participant — one year on Replied, post #70 · Lounge › Introductions · 15 Mar 2026 · 5 likes Welcome: the response to introductions is usually welcome. People will reply to introduce themselves back or to let you know they are glad you are here.
Citing a preprint in a maintained document: our rule and its reasoning Replied, post #2 · Evidence › Preprints · 11 Mar 2026 · 0 likes The opening post and I disagree about the size of the effect, not about the direction. Check whether it was later published: searching for the preprint's first author…
Injection discomfort: needle gauge, volume, temperature, technique Replied, post #28 · Practice › Administration · 19 Feb 2026 · 23 likes Narrowing post #27, because the general version has more than one answer. A new needle for each injection is not fussiness. A needle blunts on first use and a blunted…
[2026 update] Area percent versus weight percent: the confusion that causes most arguments Replied, post #6 · Analytics › HPLC & UHPLC · 6 Feb 2026 · 0 likes Coming back to post #4, because the follow-up matters more than the original answer. A chromatogram image at a resolution where you can see peak shape but not baseline…
"Greater than or equal to 99%" as a specification rather than a result Replied, post #115 · Analytics › COA interpretation · 21 Jan 2026 · 8 likes A chromatogram supplied as a small image is legible for peak shape and not for baseline detail. That is enough to sanity-check an integration and not enough to…
Half-life, steady state, and accumulation worked through — a second dataset Replied, post #60 · Pharmacology › Pharmacokinetics · 15 Jan 2026 · 0 likes Half-life: semaglutide ≈ 165–184 hours (about a week). Tirzepatide ≈ 5 days. Liraglutide ≈ 13 hours. The half-life determines how much accumulation happens at steady…
Journal club: semaglutide in MASH, and surrogate endpoints Replied, post #4 · Evidence › Journal club · 8 Jan 2026 · 0 likes FLOW (N Engl J Med 2024): Semaglutide renal outcomes in type 2 diabetes and chronic kidney disease. Stopped early for efficacy. Component-by-component analysis is…
Promotion criteria, and the one that stops most nominations — the long version Replied, post #122 · Documentation › Doc review · 30 Dec 2025 · 10 likes Objections are genuinely wanted at this stage, because a bad promotion is much harder to undo than a bad reply. The literature is thinner on this than the confidence in…
Vomiting: when it is expected and when it is a reason to stop Replied, post #26 · Practice › Side effects · 27 Dec 2025 · 3 likes 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…
Specification in the result column: why that is a meaningful error Replied, post #83 · Analytics › COA interpretation · 4 Dec 2025 · 24 likes A chromatogram supplied as a small image is legible for peak shape and not for baseline detail. That is enough to sanity-check an integration and not enough to…
Heterogeneity as information rather than as a nuisance Replied, post #15 · Evidence › Meta-analyses · 3 Dec 2025 · 0 likes High heterogeneity is the finding rather than a nuisance to be minimised. If the effect genuinely differs across settings, an average of those settings is an average of…
Documentation that appears only after payment Replied, post #93 · Sourcing › Red flags · 1 Dec 2025 · 0 likes Documentation is worth one more sentence than it usually gets, and the sentence is the one about how the number was arrived at.
Reading SURMOUNT-1 without the press release — one year on Replied, post #23 · Compounds › Tirzepatide · 19 Nov 2025 · 6 likes Distinguishing three things in the Reading SURMOUNT-1 without the press discussion that keep getting used interchangeably: the observation, the proposed mechanism, and…
A calculator that gives a right answer to the wrong question — does this still hold? Replied, post #27 · Data & Tools › Calculators · 18 Nov 2025 · 0 likes Precision and significant figures: the calculators do not round to match your input precision. If you input values to one decimal place, the output might have more. Use…
Revisiting: Aggregates and why a purity assay may miss them entirely Replied, post #18 · Analytics › Impurities & related substances · 17 Nov 2025 · 24 likes Aggregates: multiples of the monomer mass. May not elute at all under a standard reversed-phase method. A species that does not come off the column does not appear in…
[2026 update] What steady state means for the decision to escalate Replied, post #53 · Practice › Dosing & titration · 10 Nov 2025 · 3 likes On steady state, the part that usually goes wrong is that the question is asked as though it has one answer. It has a range, and the width of the range is the…
Revisiting: Gallbladder disease risk with rapid weight loss Replied, post #2 · Clinical › Comorbidities · 22 Oct 2025 · 22 likes Building on the opening post rather than restating it. Obstructive sleep apnoea: SURMOUNT-OSA used an objective endpoint, the apnoea-hypopnoea index. Reduction was…
Follow-up: Why the titration planner refuses to produce a schedule below a floor Replied, post #101 · Data & Tools › Calculators · 1 Sep 2025 · 29 likes Reporting rather than recommending, on titration planner refuses. What happened is above. Whether it should have is a different question and not one I am qualified to…
What this community means by "a source", in practical terms Replied, post #93 · Start Here › Welcome · 31 Aug 2025 · 5 likes The Lounge is a real category rather than a dumping ground. The sourcing rule still applies there, which surprises people, but the register is looser and nobody minds a…
[2026 update] Are there stupid questions here? A staff answer, at length Started this topic · Start Here › Welcome · 28 Aug 2025 · 43 likes Are there stupid questions here? A staff answer, at length — that is the question, and I have not found it answered plainly anywhere I have looked. Counting it rather…
Second pass at: A history of disordered eating: proceeding carefully Replied, post #117 · Wellbeing › Mental health · 23 Aug 2025 · 27 likes Post #114 is right about the mechanism and I think understates the practical bit. The number people quote for history of disordered eating is a central estimate…
Coming back to: What published stability data actually covers, and what it does not Replied, post #111 · Practice › Storage & stability · 12 Aug 2025 · 30 likes Quietly grateful for the plain phrasing. Not every thread gets that.
Pooling trials with different estimands — what changed since Replied, post #9 · Evidence › Meta-analyses · 2 Aug 2025 · 10 likes I read post #8 twice before replying, because I had assumed the opposite. Overlapping populations across included trials inflate the apparent sample size. It happens…
Follow-up: Why the titration planner refuses to produce a schedule below a floor Replied, post #66 · Data & Tools › Calculators · 29 Jul 2025 · 2 likes I changed my mind about titration planner refuses after someone here asked me for the source and I could not produce one. That is worth saying out loud because it is…
The CagriSema phase 2 paper and what a fixed combination buys — the long version Replied, post #99 · Compounds › Cagrilintide & amylin analogues · 15 Jun 2025 · 13 likes Adding a small correction to the CagriSema phase 2 paper summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor…
What SELECT changed about how semaglutide is discussed, and what it did not Replied, post #130 · Compounds › Semaglutide · 23 May 2025 · 0 likes Building on post #129 rather than restating it. On alcohol: the labelling does not contraindicate it, but it raises gastric irritation risk and semaglutide already does…
Reading a supplier's product description as a marketing document Replied, post #20 · Compounds › Other compounds · 8 May 2025 · 9 likes Post #19 is the version of this I will quote in future. One addition. A compound with no established assay is a compound where a certificate can say almost anything.…
Journal club: SURMOUNT-4 and continuation versus withdrawal — a second dataset Replied, post #27 · Evidence › Journal club · 5 May 2025 · 1 like Nobody has said the unglamorous part of SURMOUNT-4 and continuation versus withdrawal yet, so: most of the variation is explained by things that are boring to write…
Counter-ion content and its effect on measured mass Replied, post #25 · Analytics › Mass spectrometry · 26 Apr 2025 · 0 likes Adducts — sodium and potassium especially — shift the observed mass in predictable increments. A report showing an unexplained plus twenty-two is usually showing you a…
Reconstituting a multi-strength kit without mixing yourself up Replied, post #51 · Practice › Reconstitution · 31 Mar 2025 · 1 like Post #50 answers the question as asked. The question underneath it is different. Two questions I would want answered before drawing anything from the reconstituting a…
The C-cell question: rodent findings and their human context Replied, post #4 · Compounds › Semaglutide · 30 Mar 2025 · 26 likes I had written a reply contradicting post #2 and deleted it. Here is what survived. The 165 to 184 hour half-life range gets quoted as a fixed number. It is a range…
Journal club: STEP 4 and what a withdrawal design can prove Replied, post #11 · Evidence › Journal club · 17 Mar 2025 · 0 likes Post #7 put the caveat in the right place and I want to underline it. Sessions on negative or null results are consistently the most instructive and the hardest to get…
Biased agonism: a real phenomenon, an over-used explanation Replied, post #2 · Pharmacology › Receptor biology · 23 Feb 2025 · 0 likes Understood. Thank you for being specific about the limits of it.
Consistent declarations and why they matter more than clever ones Replied, post #54 · Sourcing › Logistics · 19 Feb 2025 · 0 likes I have been on both sides of the consistent declarations argument in this category within eighteen months, which should tell you how strong the evidence for either side…
Follow-up: Tesamorelin has an approved indication — what that changes about the evidence Replied, post #12 · Compounds › Secretagogues & GH axis · 17 Feb 2025 · 0 likes Research-use-only secretagogues are not approved for human use. That statement is doing real work in this subcategory, where the published evidence base is thinner than…
Scheduled maintenance and what will be unavailable Replied, post #15 · Meta › Announcements · 14 Jan 2025 · 29 likes Narrowing post #13, because the general version has more than one answer. Staff announcements, policy changes, and scheduled maintenance. Read-only except for questions…
Follow-up: Individual participant data versus aggregate data Replied, post #41 · Evidence › Meta-analyses · 9 Jan 2025 · 0 likes Coming back to post #37, because the follow-up matters more than the original answer. On Individual participant data versus aggregate I would separate what is worth…
A promotion I argued against, and why I lost Replied, post #43 · Documentation › Doc review · 28 Dec 2024 · 14 likes Taking post #40 at face value and following it one step further. Promotion is a question about a distribution, not about a value, and treating it as a value is what…
Body image changing more slowly than the body Replied, post #57 · Wellbeing › Mental health · 17 Dec 2024 · 0 likes Adding a small correction to the body image summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor that matters.
[2026 update] Step therapy requirements and how to satisfy them Replied, post #56 · Access › Insurance & coverage · 5 Dec 2024 · 5 likes Step therapy requirements is a question about a distribution, not about a value, and treating it as a value is what produces the confident wrong answers.
Coming back to: When to suspect the method rather than the sample Replied, post #4 · Analytics › Method validation · 27 Nov 2024 · 10 likes Narrowing the opening post, because the general version has more than one answer. Forced degradation studies: deliberately stress the material with acid, base, oxidant,…
When to suspect the method rather than the sample Replied, post #42 · Analytics › Method validation · 26 Nov 2024 · 5 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. The reasoning is more useful than…
Revisiting: Bug report: the reconstitution calculator and a rounding edge case Replied, post #4 · Data & Tools › Calculators · 25 Nov 2024 · 21 likes A saved calculation is worth more than a remembered one. Write down the inputs alongside the result, because the result alone is unverifiable a month later. Speaking…
Micronutrient status when intake falls substantially — a second dataset Replied, post #5 · Clinical › Bloodwork · 22 Nov 2024 · 0 likes Answering the question the opening post raises rather than the one it answers. Two things can be true about Micronutrient status at once: the mechanism is plausible and…
EMA product information as a primary source — does this still hold? Replied, post #57 · Regional › European Union · 16 Nov 2024 · 14 likes Reimbursement is decided nationally and varies substantially between member states for the same authorised product.
Signs of dehydration worth acting on Replied, post #39 · Safety › Adverse events · 3 Nov 2024 · 32 likes Filing a mild objection to the consensus on signs of dehydration worth acting. Mild because I might be wrong; an objection because nobody has addressed the case that…
Why a preprint's supplementary material is often the best part Replied, post #24 · Evidence › Preprints · 15 Sep 2024 · 17 likes What changes between preprint and publication: authors respond to reviewer comments, re-analyse data, correct errors found in peer review, and sometimes report…
Splitting a vial for two laboratories: how to do it without ruining both — what changed… Replied, post #57 · Sourcing › Independent verification · 14 Sep 2024 · 0 likes Repeat determination on the same product line months apart is the measurement that speaks to consistency, and consistency is what most buyers actually want. I have said…
Identical chromatograms across two different lots Replied, post #19 · Sourcing › Red flags · 28 Aug 2024 · 0 likes Where the same certificate image appears with different lot numbers, that is a documentation finding worth reporting with the images attached. That is what the…
Chronic kidney disease and the FLOW result Replied, post #28 · Clinical › Comorbidities · 19 Aug 2024 · 3 likes Interactions between comorbidities: diabetes and kidney disease together change the risk calculation for hypoglycemia and for medication clearance. They are not…
Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #8 · Evidence › Journal club · 1 Aug 2024 · 0 likes On SURPASS-2 the community has more anecdote than the confidence in this thread implies, and I include my own contribution in that.
Cold packs, phase-change material, and what survives ten days Replied, post #37 · Sourcing › Logistics · 23 Jun 2024 · 0 likes If someone has run cold packs properly I would rather read that than my own reconstruction of it. Posting mine only because the thread has gone quiet.
The mass-error checker and its intended scope Replied, post #53 · Data & Tools › Calculators · 16 Jun 2024 · 14 likes Significant figures in the output should not exceed what the inputs support. A concentration calculated from a nominal vial mass is not known to four decimal places.