k.kimani

TL2 · Kaunas

Contributes reviews on supplier material. Based in Kaunas.

Joined 21 December 2024 · last posted 1d

92 posts, newest first. Showing up to 150.

Publication bias detection and its low power Replied, post #3 · Evidence › Meta-analyses · 27 Jul 2026 · 19 likes The opening post answers the question as asked. The question underneath it is different. Inclusion and exclusion criteria: a meta-analysis is only as good as its…
What a certificate commits its issuer to Replied, post #112 · Analytics › COA interpretation · 26 Jul 2026 · 5 likes Picking up post #111: that is the part I would want checked first. The distinction between release testing and characterisation is one industrial documents make and…
Here for the analytics and not much else Replied, post #82 · Lounge › Introductions · 24 Jul 2026 · 2 likes Worth saying in an introductions thread: reading here counts. You do not have to post to belong, and trust levels move on what you read as much as what you write. I…
Follow-up: How compounding permissions changed when supply normalised Replied, post #47 · Sourcing › Regulatory · 20 Jul 2026 · 0 likes Having read the whole compounding permissions thread before replying: the question in the first post has not actually been answered yet, and three of us have answered a…
Sleep apnoea improving and the equipment implications Replied, post #16 · Wellbeing › Sleep · 18 Jul 2026 · 17 likes Consistency of timing does more for most people's sleep than any intervention discussed in this subcategory. I have no interest in any supplier named above.
Alcohol: what is documented and what is folklore Replied, post #113 · Practice › Interactions · 15 Jul 2026 · 15 likes Post #112 is right about the mechanism and I think understates the practical bit. For anyone finding this later: the short answer on alcohol is that it depends on one…
Athletes in weight-category sports: a different risk calculus Replied, post #26 · Clinical › Special populations · 15 Jul 2026 · 7 likes The reason athletes in weight-category sports keeps being re-asked is that the answer is conditional and people quote it without the condition. It is not that the…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #103 · Evidence › Preprints · 11 Jul 2026 · 8 likes Where I part company with post #101, and it is a narrow parting. Author track record is a weak signal and it is a signal. A group that has published carefully for years…
What to bring: records that a clinician can actually use — a second dataset Replied, post #19 · Clinical › Prescriber conversations · 9 Jul 2026 · 26 likes Bringing a record of symptoms with dates and severities makes an assessment materially easier and is the single most useful preparation.
Follow-up: Prior authorisation: what the criteria usually require Replied, post #58 · Access › Insurance & coverage · 6 Jul 2026 · 0 likes Noted, and thank you for writing it out rather than summarising it.
Revisiting: Protein density versus volume when you cannot eat much Replied, post #27 · Nutrition & Training › Protein & intake · 3 Jul 2026 · 8 likes Everything in post #25 holds. The case it does not cover is the one I have. I have three months of notes on Protein density versus volume and the honest summary is that…
Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Replied, post #56 · Evidence › Journal club · 24 Jun 2026 · 21 likes I would rather this thread reach "we do not know" about SURMOUNT-OSA than reach a confident answer that nobody can support when asked.
An appeal that succeeded, with the letter structure — the long version Replied, post #122 · Access › Insurance & coverage · 19 Jun 2026 · 3 likes Practical answer on appeal, since the theoretical one is upthread: do the simplest check first, write down the result, and only then decide whether the complicated…
Carryover and the ghost peak from last week's standard — what changed since Replied, post #20 · Analytics › HPLC & UHPLC · 10 Jun 2026 · 0 likes Peak purity: a diode-array detector records a spectrum at every time point. If a peak contains two co-eluting species with different spectra, the spectrum changes…
Why fasting instructions for oral semaglutide are not optional advice Replied, post #32 · Compounds › Oral incretins · 8 Jun 2026 · 0 likes PIONEER 6 was a cardiovascular safety trial for oral semaglutide, not an efficacy trial. Non-inferiority for safety was demonstrated. The point estimates favoured the…
Injection volume, overload, and peak distortion Replied, post #32 · Analytics › HPLC & UHPLC · 2 Jun 2026 · 0 likes The strongest argument against my own position on injection volume, stated as well as I can state it, since nobody else has yet.
Revisiting: The arithmetic of an intermediate dose between two label steps Replied, post #32 · Practice › Dosing & titration · 19 May 2026 · 13 likes The four-week escalation interval is a convention from the pivotal trials, not a pharmacological constant. The pharmacological argument is that with a week-long…
A plateau that disappeared when I changed how I measured — the long version Replied, post #38 · Outcomes › Progress reports · 15 May 2026 · 1 like Post #36 and I disagree about the size of the effect, not about the direction. If a pattern survives a rolling-mean treatment it is worth explaining. Most do not, and…
Batch numbers that do not match the vial label Replied, post #14 · Sourcing › Red flags · 9 May 2026 · 2 likes The most useful contribution to this subcategory is a resolved case written up with the resolution, because the unresolved ones are all anyone remembers.
Tracking intake honestly when appetite is absent Replied, post #3 · Nutrition & Training › Protein & intake · 18 Apr 2026 · 9 likes The opening post is right about the mechanism and I think understates the practical bit. Liquid sources are tolerated better than solid ones by many people here, and…
About the UK & Ireland category Replied, post #6 · Regional › UK & Ireland · 13 Apr 2026 · 8 likes Answering the question post #2 raises rather than the one it answers. Ireland: the Health Products Regulatory Authority implements EU framework. Prescription-only.…
Molecular mass of semaglutide and why the figure differs between sources Replied, post #34 · Compounds › Semaglutide · 10 Apr 2026 · 1 like Everything in post #32 holds. The case it does not cover is the one I have. Research-use-only semaglutide is not a licensed medicine, is not manufactured to…
List price versus negotiated price versus what you pay Replied, post #19 · Access › Pricing · 9 Apr 2026 · 1 like Comparing a licensed product's price to a research-use-only preparation's price is comparing two different things, and the difference is most of the explanation. That…
Run-in periods and the population they select Replied, post #92 · Evidence › Trials · 2 Apr 2026 · 2 likes Building on post #91 rather than restating it. Effect sizes in a trial population reflect adherence achieved under trial conditions, which is generally better than…
An ABAB design with a data table and honest limitations — a second dataset Replied, post #116 · Research Methods › N-of-1 designs · 29 Mar 2026 · 9 likes Everything in post #113 holds. The case it does not cover is the one I have. Adding a reference point for ABAB design. Mine is a single case, collected without…
Adducts: sodium, potassium, and the peak you did not expect — does this still hold? Replied, post #86 · Analytics › Mass spectrometry · 28 Mar 2026 · 0 likes Worth separating two things that post #84 runs together. Quantitation by MS: most quantitation is done by LC-UV detection at 214 nm, not by MS, because extinction…
GLP-1 receptor distribution: central and peripheral Replied, post #19 · Pharmacology › Receptor biology · 21 Mar 2026 · 5 likes This is the first time the answer has come with its own limits attached. Appreciated.
[2026 update] Composite endpoints and the component doing the work Replied, post #37 · Evidence › Trials · 20 Mar 2026 · 0 likes Answering the question post #33 raises rather than the one it answers. Adding a reference point for Composite endpoints. Mine is a single case, collected without…
Journal club: indirect comparison between two programmes, defended and attacked Replied, post #11 · Evidence › Journal club · 17 Mar 2026 · 0 likes STEP 1 (N Engl J Med 2021): The pivotal obesity trial for semaglutide and the reference point for most subsequent comparison. Mean weight reduction was substantially…
The lowest dose that does anything: is that a real question? Replied, post #39 · Practice › Dosing & titration · 4 Mar 2026 · 0 likes Post #37 describes the usual case. This is about the unusual one. Splitting a weekly dose in two: the pharmacokinetic argument against is that you want the benefit of…
Measurement error in a self-reported exposure Replied, post #109 · Evidence › Study critique · 27 Feb 2026 · 0 likes Posting my measurement error numbers with the method attached so they can be discounted properly. Uncontrolled, unblinded, and collected by someone who wanted a…
Designing a personal experiment that could change your mind — one year on Replied, post #15 · Research Methods › N-of-1 designs · 26 Feb 2026 · 4 likes The arithmetic in post #12 is right; the assumption feeding it is the part to check. Designing a personal experiment that could actually change your mind: that is the…
Revisiting: Language barriers in accessing a prescription abroad Replied, post #80 · Access › International · 29 Jan 2026 · 5 likes Sensible. I would want the same detail before I acted on it either.
[2026 update] Confounding by indication, explained with a concrete example Replied, post #12 · Evidence › Study critique · 29 Jan 2026 · 8 likes Post #8 and I disagree about the size of the effect, not about the direction. Hold a trial to the standard something could actually have met. A criticism that no…
A parcel stationary at a customs facility for nine days Replied, post #12 · Sourcing › Logistics · 15 Dec 2025 · 0 likes Building on post #10 rather than restating it. Customs outcomes are not predictable at the level of an individual parcel. What is predictable is that consistent,…
Interpreting a result that disagrees with the supplier's certificate Replied, post #31 · Sourcing › Independent verification · 3 Dec 2025 · 0 likes The record shows what was measured. Everything beyond that is inference and this site tries to keep the line visible.
Tracking a preprint to publication: a worked example Replied, post #26 · Evidence › Preprints · 2 Dec 2025 · 1 like Peer review catches some things reliably — missing methods, unsupported conclusions, statistical mistakes of the obvious kind — and misses others routinely. Knowing…
Journal club: PIONEER 6 as a safety trial Replied, post #7 · Evidence › Journal club · 30 Oct 2025 · 20 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.
A 40-week log with the measurement method stated Replied, post #78 · Outcomes › Progress reports · 26 Oct 2025 · 27 likes Useful. I had the fact and not the reason, which turns out to be the important half.
Where to report an adverse event officially, by region — a second dataset Replied, post #43 · Safety › Adverse events · 22 Oct 2025 · 11 likes This follows post #42 rather than contradicting it. Reporting to regulatory agencies: if you have had a serious event, reporting it to the regulatory agency in your…
Availability by country, dated, with primary sources Replied, post #27 · Access › International · 20 Oct 2025 · 0 likes Taking post #24 at face value and following it one step further. What I would want before treating availability as settled: the method, the sample, and whether anyone…
New subcategory: rationale and scope Replied, post #49 · Meta › Announcements · 18 Oct 2025 · 30 likes I came in to disagree and I am leaving without a disagreement.
Cross-border purchase rules within the EU Replied, post #24 · Regional › European Union · 15 Oct 2025 · 1 like Regional stock held inside the union removes a customs question entirely for intra-union movement, which is a practical difference rather than a legal opinion. Marking…
Documentation that appears only after payment Replied, post #49 · Sourcing › Red flags · 15 Oct 2025 · 10 likes Patterns that reliably precede a problem: underdosing (less active material than stated, documented by independent testing), mislabelling (wrong compound, wrong…
How to read a forest plot, properly, from scratch Replied, post #40 · Evidence › Trials · 13 Oct 2025 · 3 likes Post #36 and I disagree about the size of the effect, not about the direction. Absolute and relative effects answer different questions. Write down the event rate in…
Second pass at: Journal club: STEP 4 and what a withdrawal design can prove Replied, post #74 · Evidence › Journal club · 4 Oct 2025 · 13 likes Thank you for the correction. I would rather find out here than later.
Compounds this community declines to help with, and why Replied, post #6 · Compounds › Other compounds · 23 Sep 2025 · 11 likes Post #3 is the version of this I will quote in future. One addition. Why catalogue breadth is not evidence of anything: a supplier listing 500 compounds does not make…
Washout: how long is long enough, and for what purpose Replied, post #58 · Pharmacology › Pharmacokinetics · 22 Aug 2025 · 21 likes Post #54 and I disagree about the size of the effect, not about the direction. Washout after stopping takes roughly the same four to five half-lives as reaching steady…
Angle of injection and whether 90 degrees is always right Replied, post #11 · Practice › Administration · 16 Aug 2025 · 0 likes My position on angle of injection is current rather than settled. I have revised it once already and I expect to again, so treat it accordingly.
Criticising the method without criticising the authors — one year on Replied, post #17 · Evidence › Study critique · 14 Aug 2025 · 15 likes Whatever the answer on Criticising the method without criticising turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in…
Comparing two chromatograms from different laboratories, properly Replied, post #3 · marked as the solution · Analytics › HPLC & UHPLC · 13 Aug 2025 · 6 likes If two laboratories disagree by more than two or three percentage points, work through method, integration, sample handling, whether it was the same lot and the same…
Pinch or no pinch, and how needle length changes the answer Replied, post #12 · Practice › Administration · 7 Aug 2025 · 25 likes Bleeding at the site is common and unremarkable at these needle gauges. Persistent bruising in the same area repeatedly is worth a change of technique or of site rather…
Managing an unplanned gap in supply — what changed since Replied, post #26 · Access › Shortages · 28 Jul 2025 · 1 like Worth separating two things that post #22 runs together. The published shortage register maintained by the national regulator is the authoritative source here, and it…
A comparison of home results against a laboratory result on the same vial Replied, post #16 · Analytics › Home & field testing · 20 Jul 2025 · 18 likes Confirming post #13 from a second method, which matters more than confirming it from a second person. What you can use home tests for: confirmation that a solution…
Micronutrient status when intake falls substantially Replied, post #18 · Clinical › Bloodwork · 19 Jul 2025 · 12 likes Repeat before acting is standard practice for an isolated abnormal result on most analytes, and it is standard for a reason. Scoping that to what I have actually seen…
Pages past their review date, listed Replied, post #6 · Meta › Wiki maintenance · 14 Jul 2025 · 3 likes Post #5 answers the question as asked. The question underneath it is different. Careful with that. A short duplicated paragraph is sometimes better than a link, because…
Repeatability versus intermediate precision Replied, post #89 · Analytics › Method validation · 28 Jun 2025 · 17 likes System suitability: injections run at the start of a batch to establish that the instrument and column are performing. Acceptance criteria typically include replicate…
Area percent versus weight percent: the confusion that causes most arguments — what… Replied, post #27 · Analytics › HPLC & UHPLC · 25 Jun 2025 · 0 likes Coming back to post #25, because the follow-up matters more than the original answer. Peaks that do not elute do not appear in the area percentage. Aggregates and…
Follow-up: History of disordered eating and why it changes the conversation Replied, post #25 · Clinical › Special populations · 17 Jun 2025 · 3 likes Genetic and ancestry-related differences in response are asked about regularly and the published evidence is thin enough that the honest answer is short. It is the kind…
Lyophilisation and why the cake looks the way it does Replied, post #5 · Pharmacology › Formulation chemistry · 16 Jun 2025 · 1 like Building on post #4 rather than restating it. Antioxidants: compounds that prevent oxidation (which damages peptides) are sometimes included. Methionine oxidation is a…
A checklist for reading a certificate in under two minutes — does this still hold? Replied, post #12 · Analytics › COA interpretation · 10 Jun 2025 · 18 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…
System suitability injections: if they failed, the run did not happen Started this topic · Analytics › HPLC & UHPLC · 8 May 2025 · 9 likes Posting this under the heading it deserves: System suitability injections: if they failed, the run did not happen Everything below is what sits behind that. Proposing…
Reading a trial's population section before its results — does this still hold? Replied, post #55 · Evidence › Trials · 30 Apr 2025 · 3 likes Nothing in a trial report is medical advice about an individual, and the gap between a population estimate and a person is exactly where clinical judgement lives.
Review: a draft on reconstitution arithmetic, with objections Replied, post #97 · Documentation › Doc review · 9 Apr 2025 · 19 likes Review of promoted topics: when a topic is nominated for promotion to a maintained documentation page, the draft is posted here. Community review happens before…
A promotion I argued against, and why I lost Replied, post #154 · Documentation › Doc review · 30 Mar 2025 · 28 likes Nothing to add, except that this is the answer I would give if asked.
Cost per milligram, computed honestly across formats — the long version Replied, post #49 · Access › Pricing · 30 Mar 2025 · 6 likes Post #47 and I disagree about the size of the effect, not about the direction. Insurance tier placement: a compound might be covered but on a higher tier (higher…
Units, standards, and other things that quietly hold the world together Replied, post #8 · Lounge › Off topic · 30 Mar 2025 · 0 likes That is true everywhere. The reference material that gets used is the material that answers a question you have at the moment you have it, and glamour has nothing to do…
Retatrutide dose escalation in the published trials Replied, post #49 · Compounds › Retatrutide · 25 Mar 2025 · 13 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…
Asking about a compound your prescriber has not heard of Replied, post #3 · Clinical › Prescriber conversations · 21 Mar 2025 · 13 likes Coming back to the opening post, because the follow-up matters more than the original answer. Understanding stopping rules: what would prompt stopping the compound?…
Second pass at: Pharmacy supply in the UK and the questions you will be asked Replied, post #18 · Regional › UK & Ireland · 22 Feb 2025 · 6 likes Pharmacy practice varies between pharmacies and is not deducible from the regulatory position. Two people can honestly report opposite experiences. Someone should write…
Over-dilution: when your dose falls below one readable graduation Replied, post #14 · Practice › Reconstitution · 9 Feb 2025 · 13 likes If your arithmetic gives a volume smaller than one graduation on your syringe, the answer is a lower concentration rather than a more careful hand. Written quickly, so…
Units, standards, and other things that quietly hold the world together — one year on Replied, post #3 · marked as the solution · Lounge › Off topic · 5 Feb 2025 · 9 likes Lounge-appropriate observation. I have started reading the certificates that come with things I buy that have nothing to do with any of this, and the standard elsewhere…
Research-use-only status: what it means legally and practically — a second dataset Replied, post #49 · Compounds › Other compounds · 27 Dec 2024 · 9 likes Answering the question post #45 raises rather than the one it answers. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical…
Washout with a one-week half-life: the arithmetic Replied, post #19 · Research Methods › N-of-1 designs · 25 Nov 2024 · 15 likes Adding the measurement that post #16 says would settle it. Objective versus subjective measures: subjective measures (how you feel) are vulnerable to bias. Objective…
Injection-site reactions: describing them precisely enough to be useful Replied, post #19 · Practice › Side effects · 22 Nov 2024 · 3 likes Small correction to my own earlier position on injection-site reactions. I had the units the wrong way round, which changes the conclusion by an order of magnitude and…
Two sessions a week versus four: what the evidence supports Replied, post #4 · Nutrition & Training › Resistance training · 14 Nov 2024 · 1 like The opening post put the caveat in the right place and I want to underline it. The reports here that state the programme, the load and the timeframe are useful. The…
Converting between mg/mL and units per dose, both directions Replied, post #86 · Practice › Reconstitution · 12 Nov 2024 · 0 likes Preservative effectiveness is tested against a defined microbial challenge under defined conditions. It is not a licence to treat an entered vial as sterile…
Time to steady state after a dose increase Replied, post #7 · Pharmacology › Pharmacokinetics · 2 Nov 2024 · 2 likes Taking post #6 at face value and following it one step further. Volume of distribution: the theoretical volume the drug distributes into. For albumin-binding compounds,…
Athletes in weight-category sports: a different risk calculus — a second dataset Replied, post #3 · Clinical › Special populations · 26 Oct 2024 · 18 likes Confirming post #2 from a second method, which matters more than confirming it from a second person. My position on Athletes in weight-category sports is current rather…
Research-use-only status: what it means legally and practically — a second dataset Replied, post #6 · Compounds › Other compounds · 20 Oct 2024 · 2 likes Narrowing post #3, because the general version has more than one answer. Melanocortin agonists: mechanism involves the melanocortin-4 receptor pathway that regulates…
Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #77 · Evidence › Journal club · 18 Oct 2024 · 4 likes I read post #73 twice before replying, because I had assumed the opposite. Sessions on negative or null results are consistently the most instructive and the hardest to…
Hypertension improvement and when medication needs revisiting — a second dataset Replied, post #43 · Clinical › Comorbidities · 16 Oct 2024 · 32 likes Adding a data point of agreement rather than a data point.
Research-use-only labelling: what it means and what it does not — the long version Replied, post #5 · Sourcing › Regulatory · 29 Sep 2024 · 0 likes What I would tell a new member reading about Research-use-only labelling for the first time: the confident posts are not the reliable ones, and the reliable ones are…
The C-cell question: rodent findings and their human context — what changed since Replied, post #64 · Compounds › Semaglutide · 21 Sep 2024 · 0 likes The SELECT trial changed the positioning because it was the first cardiovascular outcome trial in people without diabetes. That decoupled the cardiovascular argument…
Hoarding and why it makes a shortage worse Replied, post #3 · Access › Shortages · 14 Sep 2024 · 3 likes Picking up the opening post: that is the part I would want checked first. Managing an unplanned gap: if a shortage causes a gap in treatment, the questions are how long…
Why a preprint's supplementary material is often the best part Replied, post #7 · Evidence › Preprints · 30 Aug 2024 · 15 likes Do not build anything on a preprint that you would mind rebuilding: if the preprint later changes substantially in revision or shows different results when published,…
Second pass at: Sodium, potassium and magnesium when intake drops Replied, post #52 · Nutrition & Training › Hydration & electrolytes · 22 Aug 2024 · 0 likes Coming back to post #48, because the follow-up matters more than the original answer. Reduced intake reduces electrolyte intake alongside everything else, which is the…
High-resolution MS on aggregates and what it can see — one year on Replied, post #26 · Analytics › Mass spectrometry · 15 Aug 2024 · 4 likes High-resolution sits at the boundary between what this community can usefully discuss and what it cannot, and I think it falls on the discussable side, narrowly.
Guidelines revision: what changed and why Replied, post #140 · Meta › Announcements · 29 Jul 2024 · 0 likes Guidelines revision is a good example of a question where the honest answer is boring and the interesting answers are unsupported. I would go with boring.
Journal club: FLOW and the renal composite, component by component Replied, post #42 · Evidence › Journal club · 13 Jul 2024 · 1 like Understood. Thank you for being specific about the limits of it.
The mass-error checker and its intended scope Replied, post #89 · Data & Tools › Calculators · 1 Jul 2024 · 0 likes A calculator that shows its working is worth ten that give an answer. The whole value is being able to see which step you disagree with.
Two sessions a week versus four: what the evidence supports — a second dataset Replied, post #4 · Nutrition & Training › Resistance training · 3 Jun 2024 · 17 likes Cardiovascular work has its own benefits and is not a substitute for a resistance stimulus for this particular purpose. Anyone with a larger sample, please post it.