m.radich

TL2 · Zadar

Contributes reviews on supplier material. Based in Zadar.

Joined 17 January 2025 · last posted 10h

81 posts, newest first. Showing up to 150.

German, French and Dutch differences, compared Replied, post #3 · Regional › European Union · 27 Jul 2026 · 10 likes I would call the community position on german likely rather than established, and I would be comfortable defending that hedge.
Insurance and replacement policies, compared Replied, post #123 · Sourcing › Logistics · 27 Jul 2026 · 10 likes I had written a reply contradicting post #121 and deleted it. Here is what survived. Since insurance and replacement policies keeps coming up, it should probably be a…
Hair shedding at month three: mechanism and time course — the long version Replied, post #54 · Practice › Side effects · 25 Jul 2026 · 3 likes Helpful, and short, which on this subject is harder than long.
Tracking a shortage from primary sources rather than rumour Replied, post #121 · Access › Shortages · 24 Jul 2026 · 0 likes Offering a way to settle tracking a shortage rather than another opinion about it. Two measurements, taken the same way, a fortnight apart. If the difference is within…
A 40-week log with the measurement method stated — what changed since Replied, post #13 · Outcomes › Progress reports · 21 Jul 2026 · 0 likes Picking up post #10: that is the part I would want checked first. The question underneath 40-week log is usually "how would I tell?" rather than "what is true?", and…
Which categories are strict and which are relaxed, honestly Replied, post #9 · Start Here › Welcome · 12 Jul 2026 · 29 likes Introducing yourself is fine and requires no question. Post in this subcategory, describe the context that matters for why you are here, and lurk for a bit before…
GLP-1 receptor distribution: central and peripheral Replied, post #87 · Pharmacology › Receptor biology · 10 Jul 2026 · 7 likes GLP-1 receptor agonism produces its metabolic effects through more than one route: central satiety signalling, delayed gastric emptying, and glucose-dependent insulin…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #52 · Sourcing › Independent verification · 30 Jun 2026 · 3 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.…
Carryover and the ghost peak from last week's standard — what changed since Replied, post #70 · Analytics › HPLC & UHPLC · 25 Jun 2026 · 13 likes Change the wavelength and the proportions change even though the sample has not. That is the reason the wavelength has to be on the document for the number to mean…
Semaglutide and gastric emptying — the mechanism behind most of the side-effect profile Replied, post #76 · Compounds › Semaglutide · 24 Jun 2026 · 3 likes If you are new and reading this thread for the answer to semaglutide and gastric emptying: the answer is conditional, the conditions are in the third reply, and the…
Micronutrient adequacy at low total intake Replied, post #25 · Nutrition & Training › Protein & intake · 8 Jun 2026 · 0 likes Fibre and fluid tend to fall alongside protein when intake drops, and the constipation reported here follows from that as much as from the mechanism. Old habit: I write…
Prescription portability between countries — the long version Replied, post #2 · Access › International · 20 May 2026 · 23 likes Worth separating two things that the opening post runs together. Customs practice varies between entry points within the same country, which is why two people in the…
Revisiting: The arithmetic of an intermediate dose between two label steps Replied, post #5 · Practice › Dosing & titration · 12 May 2026 · 0 likes Everything in the opening post holds. The case it does not cover is the one I have. Steady state means the plasma concentration is stable from dose to dose. That…
Journal club: orforglipron phase 2 and the non-peptide question Replied, post #51 · Evidence › Journal club · 30 Apr 2026 · 22 likes This follows post #50 rather than contradicting it. Filing a mild objection to the consensus on orforglipron phase 2. Mild because I might be wrong; an objection…
Coming back to: Time to steady state after a dose increase Replied, post #42 · Pharmacology › Pharmacokinetics · 29 Apr 2026 · 12 likes Narrowing post #39, because the general version has more than one answer. A pharmacokinetic model fitted to trial data describes the population studied. Applying it to…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #38 · Evidence › Preprints · 25 Apr 2026 · 15 likes The honest position on most preprints in this field is that they are interesting and provisional, and that saying both is not fence-sitting. The reasoning is more…
Grapefruit: why this class is not the class that cares Replied, post #109 · Practice › Interactions · 2 Apr 2026 · 3 likes The most defensible general position in this subcategory: identify the plausible mechanism, check whether it has been studied, and where it has not, say that rather…
Second pass at: Sleep apnoea improving and the equipment implications Replied, post #6 · Wellbeing › Sleep · 30 Mar 2026 · 10 likes Everything in post #4 holds. The case it does not cover is the one I have. When sleep problems need attention: if sleep does not improve as weight loss continues or if…
Second pass at: Robustness: the parameters worth deliberately varying Replied, post #58 · Analytics › Method validation · 22 Mar 2026 · 18 likes Reading rather than contributing, but this is the most useful thread I have found on it.
Adolescents: a distinct evidence base — one year on Replied, post #76 · Clinical › Special populations · 18 Mar 2026 · 1 like Adolescents came up in a thread eighteen months ago and was answered well. I cannot find it, which is itself the problem, so here is the reconstruction.
Which fields on a certificate actually matter, ranked Replied, post #19 · Analytics › COA interpretation · 16 Mar 2026 · 8 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…
Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #25 · Start Here › Welcome · 14 Mar 2026 · 7 likes Reading the guidelines before you post is genuinely worth the twenty minutes. Not because you will break one, but because the rules explain why the place reads the way…
Oral versus injected administration claims for BPC-157 Replied, post #4 · Compounds › Repair & healing peptides · 9 Mar 2026 · 24 likes I keep a log for oral versus injected administration claims specifically because my memory of it turned out to be systematically wrong in one direction. Six weeks of…
Reading a preclinical wound-healing model and its relevance to a human tendon — a second… Replied, post #9 · Compounds › Repair & healing peptides · 7 Mar 2026 · 0 likes Reading a preclinical wound-healing model: the model shows whether a mechanism is plausible in a specific context. It does not show magnitude of effect in humans, does…
Follow-up: "Should I double up?" — answered once, at length, calmly Replied, post #2 · Practice › Administration · 27 Feb 2026 · 25 likes Reading back through, this was answered upthread and I missed it. My fault.
Measurement error in a self-reported exposure Replied, post #71 · Evidence › Study critique · 25 Feb 2026 · 5 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…
Storing lyophilised material long term: what governs the shelf life Replied, post #71 · Practice › Storage & stability · 18 Feb 2026 · 32 likes Post #69 and I disagree about the size of the effect, not about the direction. Protecting from light: amber vials or opaque containers reduce light exposure. If you are…
Revisiting: Language barriers in accessing a prescription abroad Replied, post #117 · Access › International · 18 Feb 2026 · 0 likes Currency and exchange rates: paying in different currencies has different costs and risks. Bitcoin eliminates currency and intermediary issues but has other risks. That…
Interim analyses and stopping rules Replied, post #12 · Evidence › Trials · 5 Feb 2026 · 2 likes Post #8 describes the usual case. This is about the unusual one. A treatment-policy estimand asks what happens to people assigned to a strategy, including those who…
Interpreting a result that disagrees with the supplier's certificate Replied, post #83 · Sourcing › Independent verification · 16 Jan 2026 · 26 likes Post #80 and I disagree about the size of the effect, not about the direction. A supplier's own certificate is not independent. It can be posted, it is useful, and it…
Citation sweep results: how many references did not say what was claimed Replied, post #28 · Meta › Wiki maintenance · 8 Jan 2026 · 24 likes Post #27 put the caveat in the right place and I want to underline it. Adding a null result on citation sweep results. I looked, carefully, and found nothing, and null…
A history of disordered eating: proceeding carefully Replied, post #53 · Wellbeing › Mental health · 7 Jan 2026 · 1 like Speaking only to history of disordered eating as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the thread…
Dead volume across syringe and needle combinations Replied, post #47 · Devices › Syringes & needles · 31 Dec 2025 · 3 likes Check what the graduations actually say rather than what you expect. A syringe marked in units and one marked in millilitres look similar at a glance and are not the…
Tracking that stops updating and then resumes Replied, post #58 · Sourcing › Logistics · 20 Dec 2025 · 4 likes I came in to disagree and I am leaving without a disagreement.
Anxiety in the first weeks: drug, situation, or both — what changed since Replied, post #57 · Wellbeing › Mental health · 1 Dec 2025 · 7 likes Confirming post #54 from a second method, which matters more than confirming it from a second person. Nothing here is medical advice and several members in this…
Request: a diff view for wiki revisions — the long version Replied, post #77 · Meta › Feature requests · 30 Nov 2025 · 0 likes Deprecation requests: if you think a feature should be removed or changed, that is also a request. Explain why you think it would improve the site. I would treat the…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #84 · Compounds › Tirzepatide · 16 Nov 2025 · 0 likes Post #83 is right about the mechanism and I think understates the practical bit. Comparisons between the tirzepatide and semaglutide programmes across trials rather…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #67 · Compounds › Tirzepatide · 14 Nov 2025 · 30 likes I had written a reply contradicting post #65 and deleted it. Here is what survived. Mass and charge states: tirzepatide is about 4813.5 Da and on an electrospray…
Pinch or no pinch, and how needle length changes the answer Replied, post #127 · Practice › Administration · 24 Oct 2025 · 28 likes Injection discomfort: comes from needle gauge (finer = less discomfort), volume (smaller = less discomfort), temperature (room temperature or warmed is less…
Documentation that materially improves an appeal's chances Replied, post #31 · Access › Insurance & coverage · 17 Oct 2025 · 17 likes I have been on both sides of the documentation argument in this category within eighteen months, which should tell you how strong the evidence for either side is.
Second pass at: Programming during a large energy deficit Replied, post #33 · Nutrition & Training › Resistance training · 9 Oct 2025 · 0 likes Noted, and thank you for writing it out rather than summarising it.
Micronutrient adequacy at low total intake — does this still hold? Replied, post #26 · Nutrition & Training › Protein & intake · 8 Oct 2025 · 0 likes Worth separating two things that post #25 runs together. Leucine and MPS: leucine stimulates muscle protein synthesis at a threshold of roughly 2 to 3 grams per meal.…
Why "any advice?" is the least effective ending for a post — the long version Replied, post #63 · Start Here › How to Ask · 3 Oct 2025 · 3 likes When you quote a figure from somewhere else, say where from. Not as a formality — the answer frequently depends on whether the number came from a certificate, an…
Follow-up: Why the titration planner refuses to produce a schedule below a floor Replied, post #109 · Data & Tools › Calculators · 8 Sep 2025 · 0 likes The arithmetic in post #106 is right; the assumption feeding it is the part to check. One more thing on titration planner refuses that took me far too long to see: the…
[2026 update] What we do not know about retatrutide, listed explicitly Replied, post #77 · Compounds › Retatrutide · 3 Sep 2025 · 33 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…
The nausea timeline across the first four weeks, with a tabulated log Replied, post #29 · Practice › Side effects · 1 Sep 2025 · 10 likes The published rates come from populations that were titrated on a defined schedule with clinical supervision. Rates from a forum are not comparable and are biased by…
Persistent vomiting and the threshold for seeking help Replied, post #26 · Safety › Adverse events · 30 Aug 2025 · 3 likes Coming back to post #23, because the follow-up matters more than the original answer. Persistent vomiting: I would want to see the raw numbers rather than the summary…
Journal club: STEP-HFpEF and symptom endpoints Started this topic · Evidence › Journal club · 29 Aug 2025 · 47 likes Journal club: STEP-HFpEF and symptom endpoints — setting out what I have, and where I think it stops being reliable. The question about step-hfpef and symptom endpoints…
A preprint whose numbers changed substantially at publication Replied, post #33 · Evidence › Preprints · 28 Aug 2025 · 3 likes Unrefereed work is not worthless. A great deal of it survives review substantially unchanged. It is also the case that the version appearing in a journal frequently has…
Coming back to: Resolution and tailing factor: real acceptance criteria Replied, post #24 · Analytics › HPLC & UHPLC · 2 Aug 2025 · 20 likes Quietly grateful for the plain phrasing. Not every thread gets that.
A ten-fold dose error caught before injection — one year on Replied, post #31 · Devices › Syringes & needles · 1 Aug 2025 · 0 likes Graduation spacing is worth checking before you buy rather than after. Some 1 mL barrels are marked every two units and some every one, and that changes what doses you…
What a 2 ppm match establishes, and what it does not Replied, post #38 · Analytics › Mass spectrometry · 1 Aug 2025 · 4 likes Adding a note of thanks rather than an opinion. I did not know most of that.
Second pass at: A history of disordered eating: proceeding carefully Replied, post #97 · Wellbeing › Mental health · 26 Jul 2025 · 3 likes Where a member is finding this hard, the useful reply is usually a question rather than an answer, and this subcategory does that well. A modest claim, modestly…
Whether an aggregate is worth publishing at all: a disputed topic Replied, post #13 · Data & Tools › Datasets · 24 Jun 2025 · 2 likes I disagree with the framing of whether an aggregate above, and I think it is a substantive disagreement rather than a terminological one. Setting out why, so it can be…
Second pass at: Retatrutide mass and identity: what a report should show Replied, post #68 · Compounds › Retatrutide · 14 Jun 2025 · 0 likes Retatrutide is investigational. Anything obtained outside a trial is by definition research-use-only material with no human-use authorisation. This site will state that…
Sodium, potassium and magnesium when intake drops Replied, post #7 · Nutrition & Training › Hydration & electrolytes · 6 Jun 2025 · 10 likes Understood, and I withdraw the assumption I opened with.
Pre-registering a personal experiment, seriously Replied, post #116 · Research Methods › N-of-1 designs · 4 Jun 2025 · 0 likes Nothing in a personal experiment is medical advice to anyone including yourself, and several people here have found that a prescriber will happily discuss a…
How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ Replied, post #111 · Sourcing › Independent verification · 17 May 2025 · 7 likes Post #109 describes the usual case. This is about the unusual one. Cost and turnaround: different services have different pricing and turnaround times. Janoshik's…
Second pass at: Designing a personal experiment that could change your mind Replied, post #6 · Research Methods › N-of-1 designs · 16 May 2025 · 2 likes That is the distinction I keep failing to hold on to. Written down now.
Adjudicated events and why the definition matters — the long version Replied, post #128 · Evidence › Trials · 1 May 2025 · 6 likes If someone has run Adjudicated events properly I would rather read that than my own reconstruction of it. Posting mine only because the thread has gone quiet.
Asking about a compound your prescriber has not heard of Replied, post #28 · Clinical › Prescriber conversations · 30 Apr 2025 · 0 likes Bringing a record of symptoms with dates and severities makes an assessment materially easier and is the single most useful preparation. It is worth checking rather…
Delayed gastric emptying and oral medication absorption: which drugs matter Replied, post #58 · Practice › Interactions · 23 Apr 2025 · 3 likes A note on scope: what I am saying about delayed gastric emptying and oral applies to the case in the first post and I would not extend it further without checking.
Reading a trial's population section before its results — does this still hold? Replied, post #23 · Evidence › Trials · 19 Apr 2025 · 31 likes Reading back through, this was answered upthread and I missed it. My fault.
Review: a draft on reconstitution arithmetic, with objections Replied, post #110 · Documentation › Doc review · 17 Apr 2025 · 4 likes Where the review finds the content is right but the framing overstates it, that is the most valuable catch available at this stage.
Validating a method you did not develop — does this still hold? Replied, post #100 · Analytics › Method validation · 11 Mar 2025 · 15 likes Robustness testing deliberately varies the parameters most likely to drift — organic percentage, pH, temperature, flow — and shows the result does not. It is the part…
Biased agonism: a real phenomenon, an over-used explanation Replied, post #41 · Pharmacology › Receptor biology · 4 Mar 2025 · 10 likes Summarising the biased agonism thread so far, since it is long and the answer is buried: the first reply has the method, the fourth has the correction to it, and the…
A 10 mg vial reconstituted three different ways, compared — the long version Replied, post #18 · Practice › Reconstitution · 3 Mar 2025 · 3 likes Careful with the language on 10 mg vial reconstituted three. "Not detected" and "not present" are different findings and the first is a statement about the method.
Telehealth prescribing models in the US Replied, post #49 · Regional › North America · 23 Jan 2025 · 4 likes I would keep telehealth prescribing models and the decision it usually gets used for separate in this thread. They are related and they are not the same question, and…
Asking about a compound your prescriber has not heard of — one year on Replied, post #9 · Clinical › Prescriber conversations · 28 Nov 2024 · 29 likes Building on post #7 rather than restating it. Asking what monitoring is planned and why makes the monitoring make sense, and makes it likelier to happen. I would rather…
Revisiting: Melanocortin agonists: mechanism and the documented adverse profile Replied, post #141 · Compounds › Other compounds · 25 Nov 2024 · 17 likes Everything in post #137 holds. The case it does not cover is the one I have. Since Melanocortin agonists keeps coming up, it should probably be a maintained page rather…
SURPASS-2 and the comparator dose question that will not go away Replied, post #59 · Compounds › Tirzepatide · 19 Nov 2024 · 25 likes SURMOUNT-4's randomised withdrawal design is the strongest available evidence about what happens on stopping. It says nothing about a lower maintenance dose, because…
Food noise reducing and the disorientation that can follow Replied, post #36 · Wellbeing › Mental health · 7 Nov 2024 · 0 likes This follows post #35 rather than contradicting it. Motivation and expectation: starting with clear motivation and realistic expectations about what will happen and…
Hypertension improvement and when medication needs revisiting — a second dataset Replied, post #75 · Clinical › Comorbidities · 21 Oct 2024 · 27 likes A note on scope: what I am saying about Hypertension improvement applies to the case in the first post and I would not extend it further without checking.
Revisiting: How to bring a laboratory report to an appointment usefully Replied, post #116 · Clinical › Bloodwork · 17 Oct 2024 · 33 likes Useful. I have added it to my own notes with the date on it.
Transit times by route, from a logged dataset — the long version Replied, post #20 · Sourcing › Logistics · 14 Oct 2024 · 0 likes What I want from this Transit times thread is the list of things that would need to be true for the claim to hold. If we can write that list, we can check it.
Request: a diff view for wiki revisions Replied, post #16 · Meta › Feature requests · 10 Oct 2024 · 32 likes Adding a small correction to the diff view for wiki revisions summary above rather than a disagreement with it. The substance holds; one of the figures is out by a…
Correlation in a self-tracked dataset: what it can support Replied, post #118 · Research Methods › Statistics · 24 Aug 2024 · 18 likes Effect sizes: the magnitude of a difference, not just whether it is statistically significant. A difference that is significant (p If it helps: the failure mode here is…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #20 · Analytics › COA interpretation · 5 Aug 2024 · 16 likes Field-by-field walk through a certificate would be much easier to settle if anyone reported the denominator. Almost nobody reports the denominator.
Second pass at: Sodium, potassium and magnesium when intake drops Replied, post #22 · Nutrition & Training › Hydration & electrolytes · 2 Aug 2024 · 9 likes Lab testing: if symptoms are severe or persistent, checking electrolytes and minerals (sodium, potassium, magnesium, calcium) and interpreting them in context of losses…
Second pass at: Journal club: LEADER as the historical anchor Replied, post #62 · Evidence › Journal club · 24 Jul 2024 · 0 likes Adding a null result on LEADER. I looked, carefully, and found nothing, and null results deserve posting precisely because they never are.
Splitting a weekly dose in two: the pharmacokinetic argument against — the long version Replied, post #142 · Practice › Dosing & titration · 10 Jul 2024 · 1 like On Splitting a weekly dose: the maintained page in the documentation commons covers the general case with citations and a review date, which is more reliable than any…