dr.villanueva

TL3 Physician · Manila, PH

Internal medicine. Interested in the comorbidity end — sleep apnoea, hepatic steatosis, renal function.

Joined 14 November 2024 · last posted 4d · groups: clinicians, regional-na

136 posts, newest first. Showing up to 150.

Seven-day rolling means and why weekly readings mislead Replied, post #100 · Outcomes › Progress reports · 24 Jul 2026 · 0 likes Second this, and I would have said it less carefully.
Follow-up: Prior authorisation: what the criteria usually require Replied, post #94 · Access › Insurance & coverage · 24 Jul 2026 · 0 likes I had written a reply contradicting post #90 and deleted it. Here is what survived. Formulary changes happen on a published schedule, so a denial now may be answering…
Distinguishing a red flag from an inconvenience — a second dataset Replied, post #7 · Sourcing › Red flags · 22 Jul 2026 · 20 likes Agreed on all of that, and I have nothing to add to it.
Journal club: what we got wrong in an earlier session Replied, post #103 · Evidence › Journal club · 20 Jul 2026 · 3 likes Bringing the previous paper on the same question makes the session much better and doubles the preparation. Worth doing every third session rather than every one.
Insomnia at a dose step: reported experiences — the long version Replied, post #48 · Wellbeing › Sleep · 18 Jul 2026 · 12 likes Energy availability affects sleep in both directions, and a large deficit can produce either fragmentation or unusual sleepiness. This is the sort of thing that ought…
Coming back to: Batch date after test date, and other internal inconsistencies Replied, post #14 · Analytics › COA interpretation · 16 Jul 2026 · 0 likes Asking for the batch record rather than the certificate is a reasonable request and the response to it is informative whichever way it goes.
NHS criteria and how they are applied in practice Replied, post #28 · Regional › UK & Ireland · 13 Jul 2026 · 3 likes No disagreement from me. Posting only so the question does not look ignored.
Endotoxin and why it is a separate question from purity — what changed since Replied, post #74 · Analytics › Impurities & related substances · 11 Jul 2026 · 5 likes Oxidation at methionine or tryptophan adds sixteen per oxygen and typically elutes earlier. In aged material it is the modification that grows.
Here for the analytics and not much else Replied, post #19 · Lounge › Introductions · 11 Jul 2026 · 0 likes Welcome. If you have an analytical background you will find the analytics subcategories the easiest place to be useful quickly — the recurring gap here is people who…
What is genuinely unknown about long-term amylin agonism Replied, post #18 · Compounds › Cagrilintide & amylin analogues · 9 Jul 2026 · 3 likes Cagrilintide is a long-acting amylin analogue, which puts it in a different mechanistic family from the incretin agonists it is usually discussed alongside. Amylin…
Osteoarthritis and mechanical versus metabolic improvement — one year on Started this topic · Clinical › Comorbidities · 8 Jul 2026 · 4 likes On the subject in the title: Osteoarthritis and mechanical versus metabolic improvement — one year on Working notes rather than a conclusion. Collecting what is known…
Coming back to: Reconciling a supplier certificate with an independent result Replied, post #22 · Sourcing › Vendor reports · 5 Jul 2026 · 9 likes I think the Reconciling a supplier certificate question is answerable and has not been answered, which is a more optimistic position than most of this thread.
GLP-1 receptor distribution: central and peripheral Replied, post #82 · Pharmacology › Receptor biology · 3 Jul 2026 · 3 likes Understood, and I withdraw the assumption I opened with.
Prescription requirements and telehealth models — a second dataset Replied, post #77 · Sourcing › Regulatory · 24 Jun 2026 · 16 likes I had written a reply contradicting post #73 and deleted it. Here is what survived. What would change my mind on Prescription requirements and telehealth models is a…
Micro-titration: a disputed topic, argued properly Replied, post #93 · Practice › Dosing & titration · 22 Jun 2026 · 11 likes The arithmetic in post #90 is right; the assumption feeding it is the part to check. Concentration and dose get conflated constantly in this subcategory. Changing how…
Why a glucagon receptor agonist in a weight-loss compound is not a contradiction Replied, post #8 · Compounds › Retatrutide · 18 Jun 2026 · 29 likes No phase 3 results exist for retatrutide. Anything attributed to a completed phase 3 trial of this compound is either a misreading or an invention, and the honest…
Request: a per-category review queue Replied, post #39 · Meta › Feature requests · 15 Jun 2026 · 3 likes This follows post #36 rather than contradicting it. My understanding of per-category review queue is a few years old and may have been superseded. If it has been, I…
0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Replied, post #72 · Devices › Syringes & needles · 14 Jun 2026 · 10 likes Where I part company with post #68, and it is a narrow parting. U-100 means the barrel is graduated for a solution containing one hundred units of insulin per…
What a certificate commits its issuer to — one year on Replied, post #88 · Analytics › COA interpretation · 14 Jun 2026 · 0 likes Thank you for the correction. I would rather find out here than later.
Micronutrient adequacy at low total intake Replied, post #75 · Nutrition & Training › Protein & intake · 12 Jun 2026 · 0 likes Confirming post #74 from a second method, which matters more than confirming it from a second person. Self-reported intake is optimistic by a consistent margin in the…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #99 · Practice › Storage & stability · 8 Jun 2026 · 14 likes Answering the question post #97 raises rather than the one it answers. Clarity is a weak test. A solution can lose a significant fraction of its active content to…
0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Replied, post #65 · Devices › Syringes & needles · 7 Jun 2026 · 11 likes I had written a reply contradicting post #64 and deleted it. Here is what survived. The version of 0.3 ml versus 0.5 ml that circulates here is a simplification of a…
Micronutrient adequacy at low total intake Replied, post #22 · Nutrition & Training › Protein & intake · 7 Jun 2026 · 18 likes Eating anything at all: on substantial appetite suppression, eating enough total calories to maintain lean mass is the priority. Protein comes second to total intake.…
Peak-to-trough ratio at steady state for a weekly agent — the long version Replied, post #18 · Pharmacology › Pharmacokinetics · 5 Jun 2026 · 14 likes Where two sources give different half-lives, check the study design before deciding either is wrong. Sampling duration, assay sensitivity and population all move the…
Revisiting: The best-written scientific paper you have read Replied, post #15 · Lounge › Off topic · 4 Jun 2026 · 17 likes My understanding of best-written scientific paper is a few years old and may have been superseded. If it has been, I would genuinely like to know rather than keep…
Injecting into an area that has become firm: why not to Replied, post #11 · Practice › Administration · 3 Jun 2026 · 0 likes The arithmetic in post #9 is right; the assumption feeding it is the part to check. If you have to inject at a different time of day than usual, that is a much smaller…
Publication patterns in the BPC-157 literature, examined Replied, post #4 · Compounds › Repair & healing peptides · 29 May 2026 · 0 likes Post #2 put the caveat in the right place and I want to underline it. Publication patterns in the BPC-157 literature: a large proportion of the evidence comes from one…
Reading a trial's population section before its results Replied, post #54 · Evidence › Trials · 26 May 2026 · 12 likes Risk of bias: structured appraisal of internal validity. Key things to assess: randomisation method (was it truly random or could someone predict the next assignment),…
Moderation log format change Replied, post #56 · Meta › Announcements · 25 May 2026 · 28 likes I came in to disagree and I am leaving without a disagreement.
[2026 update] Currency conversion and the cost you did not see Replied, post #19 · Sourcing › Payments · 20 May 2026 · 9 likes Where a supplier issues a quote with an expiry, honouring it after the expiry is a courtesy rather than an entitlement, and several here have found it granted.
Revisiting: The arithmetic of an intermediate dose between two label steps Replied, post #10 · Practice › Dosing & titration · 14 May 2026 · 0 likes Going back down a step is not a failure and the trials allowed it. Several protocols permitted a return to the previous dose for tolerability and then a second attempt…
Revisiting: Journal club: SURMOUNT-1, read without the press release Replied, post #45 · Evidence › Journal club · 13 May 2026 · 4 likes Sessions on negative or null results are consistently the most instructive and the hardest to get anyone to attend.
Reflectance and photometric devices: precision in practice — a second dataset Replied, post #26 · Analytics › Home & field testing · 11 May 2026 · 1 like Narrowing post #23, because the general version has more than one answer. The right question for any home test is: what physical quantity does it measure, and what…
Coming back to: Time to steady state after a dose increase Replied, post #47 · Pharmacology › Pharmacokinetics · 6 May 2026 · 0 likes Where I part company with post #43, and it is a narrow parting. Dose proportionality across the studied range means dose arithmetic behaves the way you would naively…
A parcel stationary at a customs facility for nine days Replied, post #56 · Sourcing › Logistics · 6 May 2026 · 24 likes Border outcomes are not predictable at the level of an individual parcel. What is predictable is that consistent, accurate declarations correlate with fewer…
Why the timeline is on the right and not the left — what changed since Replied, post #30 · Meta › Site feedback · 3 May 2026 · 15 likes Taking post #29 at face value and following it one step further. Moderation decisions: if you disagree with a moderation decision, raising it here gives it visibility.…
Subgroup analyses: pre-specified versus discovered — a second dataset Replied, post #64 · Evidence › Trials · 28 Apr 2026 · 0 likes I think the Subgroup analyses question is answerable and has not been answered, which is a more optimistic position than most of this thread.
Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Replied, post #10 · Evidence › Journal club · 28 Apr 2026 · 2 likes Post #8 describes the usual case. This is about the unusual one. Reading order that works for these sessions: registry entry, methods, baseline table, primary result,…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #39 · Evidence › Preprints · 26 Apr 2026 · 20 likes Author track record is a weak signal and it is a signal. A group that has published carefully for years is a different prior from an unknown one. Nothing above should…
Forced degradation studies: designing one that is informative Replied, post #44 · Analytics › Method validation · 26 Apr 2026 · 0 likes I had written a reply contradicting post #43 and deleted it. Here is what survived. Forced degradation studies would be much easier to settle if anyone reported the…
Historical amylin analogues and what happened to them Replied, post #3 · Compounds › Cagrilintide & amylin analogues · 26 Apr 2026 · 0 likes The arithmetic in the opening post is right; the assumption feeding it is the part to check. A note on how historical amylin analogues gets discussed rather than on…
A 5 mg vial and a 0.25 mg dose: the arithmetic in full Replied, post #25 · Practice › Reconstitution · 25 Apr 2026 · 3 likes Answering the question post #21 raises rather than the one it answers. A 10 mg vial reconstituted three different ways: 1 mL diluent gives 10 mg/mL, 2 mL gives 5 mg/mL,…
List price versus negotiated price versus what you pay Replied, post #82 · Access › Pricing · 15 Apr 2026 · 11 likes Second this, and I would have said it less carefully.
List price versus negotiated price versus what you pay Replied, post #61 · Access › Pricing · 13 Apr 2026 · 2 likes The arithmetic on list price versus negotiated price is the easy part and it is where the errors are, which is an uncomfortable combination. Show your working and…
Grapefruit: why this class is not the class that cares Replied, post #104 · Practice › Interactions · 1 Apr 2026 · 23 likes Anticoagulants: no direct interaction with the compounds in this class. Weight loss and body composition changes might affect the clearance or effect of warfarin if you…
Journal club: is percentage weight change the right endpoint? Replied, post #13 · Evidence › Journal club · 25 Mar 2026 · 18 likes The figures usually contain the finding and the text usually contains the interpretation. Separating them for the first twenty minutes is a discipline worth keeping.…
Second pass at: Adsorptive losses at low concentration, and why dilute solutions are… Replied, post #61 · Practice › Storage & stability · 11 Mar 2026 · 6 likes Useful. I had the fact and not the reason, which turns out to be the important half.
Second pass at: Identical chromatograms across two different lots Replied, post #55 · Sourcing › Red flags · 10 Mar 2026 · 7 likes This is the first time the answer has come with its own limits attached. Appreciated.
Price changes over 2025 and 2026, tabulated and dated — does this still hold? Replied, post #107 · Access › Pricing · 5 Mar 2026 · 10 likes Adding what did not work for me on Price changes, since the failures never get written up and they are half the useful information.
Anaesthesia and elective surgery: the aspiration question Replied, post #39 · Practice › Interactions · 4 Mar 2026 · 20 likes Nothing to add, except that this is the answer I would give if asked.
Nausea profile of amylin analogues compared with GLP-1 agonists Replied, post #33 · Compounds › Cagrilintide & amylin analogues · 28 Feb 2026 · 1 like What is genuinely unknown about long-term amylin agonism: real-world response rates, whether effect is durable with continued use, whether satiety adaptation occurs…
Second pass at: Robustness: the parameters worth deliberately varying Replied, post #51 · Analytics › Method validation · 24 Feb 2026 · 11 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…
Adducts: sodium, potassium, and the peak you did not expect — does this still hold? Replied, post #42 · Analytics › Mass spectrometry · 19 Feb 2026 · 0 likes On post #40 — agreed on the reasoning, with one qualification. The bit of Adducts that nobody enjoys is that the answer changes depending on what you are trying to…
Adducts: sodium, potassium, and the peak you did not expect — does this still hold? Replied, post #33 · Analytics › Mass spectrometry · 10 Feb 2026 · 1 like What I want from this Adducts 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.
Trifluoroacetate content and its consequences Replied, post #88 · Analytics › Impurities & related substances · 5 Feb 2026 · 7 likes This is the sort of exchange that makes the archive worth searching.
Angle of injection and whether 90 degrees is always right Replied, post #90 · Practice › Administration · 28 Jan 2026 · 9 likes What I want from this angle of injection 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.
The headache that turns out to be dehydration Replied, post #123 · Nutrition & Training › Hydration & electrolytes · 4 Jan 2026 · 12 likes Post #122 answers the question as asked. The question underneath it is different. Taking headache seriously for a moment rather than deflecting: the honest position is…
Second pass at: Circumference measurements as a poor man's composition estimate Replied, post #33 · Outcomes › Body composition · 30 Dec 2025 · 15 likes That is a fair summary of where the discussion has got to.
Citation sweep results: how many references did not say what was claimed Replied, post #23 · Meta › Wiki maintenance · 28 Dec 2025 · 7 likes Building on post #20 rather than restating it. Wiki hygiene point: every edit here should say what changed and why in the note, not what section it touched. "Fixed…
DXA precision and the least significant change for lean mass Replied, post #82 · Outcomes › Body composition · 18 Dec 2025 · 24 likes Resting metabolic rate: body composition affects metabolic rate. As fat mass decreases and lean mass is maintained, metabolic rate is usually maintained better than…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one Replied, post #90 · Compounds › Oral incretins · 14 Dec 2025 · 0 likes The practical argument for an oral is adherence, and the published adherence data is less flattering than the argument. Daily dosing with fasting requirements is not…
Citation sweep results: how many references did not say what was claimed Replied, post #12 · Meta › Wiki maintenance · 1 Dec 2025 · 12 likes Two sentences on citation sweep results and then I will stop, because the rest is speculation and the thread is better without mine. What is documented is narrow. What…
Tracking that stops updating and then resumes Replied, post #51 · Sourcing › Logistics · 30 Nov 2025 · 2 likes Peak periods and public holidays affect this more than any other factor and are entirely predictable in advance. It is one reading of the data and not the only…
Reading SURMOUNT-1 without the press release Replied, post #73 · Compounds › Tirzepatide · 21 Nov 2025 · 0 likes Research-use-only tirzepatide is not approved for human use and is not made to pharmaceutical standards. Anyone discussing it here is describing what they did, not…
Anxiety in the first weeks: drug, situation, or both — what changed since Replied, post #52 · Wellbeing › Mental health · 19 Nov 2025 · 1 like Anxiety looks different depending on whether you are reading the primary literature or the summaries of it, and the difference is not in our favour.
Availability by country, dated, with primary sources Replied, post #63 · Access › International · 17 Nov 2025 · 0 likes The useful distinction on availability is between what was measured and what was inferred from it. Both end up in the same sentence and only one of them has error bars.
Second pass at: A reconstituted vial's beyond-use date and the reasoning behind common… Started this topic · Practice › Storage & stability · 14 Nov 2025 · 6 likes Second pass at: A reconstituted vial's beyond-use date and the reasoning behind common figures Writing it up because I had to work it out twice and would rather nobody…
The headache that turns out to be dehydration Replied, post #36 · Nutrition & Training › Hydration & electrolytes · 27 Oct 2025 · 29 likes Following, with nothing to contribute beyond having asked the same thing elsewhere.
A comparison of home results against a laboratory result on the same vial Replied, post #52 · Analytics › Home & field testing · 21 Oct 2025 · 13 likes Post #49 is the version of this I will quote in future. One addition. Why third-party testing is stronger: a home test run by the person who made the compound is a…
A 40-week log with the measurement method stated Replied, post #34 · Outcomes › Progress reports · 19 Oct 2025 · 0 likes What I would want before treating 40-week log as settled: the method, the sample, and whether anyone tried to find the opposite result. Two of the three are usually…
Substitution between formats during a shortage Replied, post #77 · Access › Shortages · 17 Oct 2025 · 4 likes Compounding during shortages: some jurisdictions allow pharmacy compounding when a marketed product is in shortage. That permission is jurisdiction-specific and…
A genuinely late dose: what the labelling says and what people do — what changed since Replied, post #2 · Practice › Administration · 17 Oct 2025 · 0 likes Pinch or no pinch: the decision depends on needle length and on your own anatomy. A longer needle (8 mm and up) reaches subcutaneous tissue easily without a pinch. A…
Second pass at: Programming during a large energy deficit Replied, post #38 · Nutrition & Training › Resistance training · 13 Oct 2025 · 18 likes On Programming during a large energy I would separate what is worth knowing from what is worth acting on. The first list is long and the second is short, and conflating…
How the vendor documentation pages are maintained, and by whom — what changed since Replied, post #72 · Sourcing › Vendor reports · 13 Oct 2025 · 32 likes Vendor documentation pages 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.
Why "any advice?" is the least effective ending for a post — the long version Replied, post #66 · Start Here › How to Ask · 8 Oct 2025 · 0 likes Questions you cannot explain: "I cannot say why I am asking this, but is this compound stable at room temperature?" is more productive than no question at all. People…
Citing a preprint in a maintained document: our rule and its reasoning — does this still… Replied, post #47 · Evidence › Preprints · 29 Sep 2025 · 28 likes Retractions and corrections do not propagate well from preprint servers. A citation that was fine when made can quietly become wrong. Not disagreeing with anyone above,…
Titles that describe the question, not the situation Replied, post #98 · Start Here › How to Ask · 17 Sep 2025 · 0 likes Do not apologise in the first line. It costs you the space where the question should be, and nobody here thinks a question is an imposition.
Aggregated purity results across four services, with caveats — a second dataset Replied, post #60 · Data & Tools › Datasets · 8 Sep 2025 · 0 likes On post #59 — agreed on the reasoning, with one qualification. Aggregating first-hand accounts does not produce evidence of the kind a trial produces. It produces a…
[2026 update] What we do not know about retatrutide, listed explicitly Replied, post #74 · Compounds › Retatrutide · 1 Sep 2025 · 12 likes Nausea and vomiting were dose-related in the phase 2 work, as they are throughout this class. What is not established is whether the tolerability profile differs from…
A preprint whose numbers changed substantially at publication Replied, post #36 · Evidence › Preprints · 31 Aug 2025 · 0 likes Where I part company with post #32, and it is a narrow parting. Do not build anything on a preprint that you would mind rebuilding: if the preprint later changes…
Second pass at: A history of disordered eating: proceeding carefully Replied, post #120 · Wellbeing › Mental health · 28 Aug 2025 · 5 likes History of disordered eating: I would want to see the raw numbers rather than the summary before agreeing. Summaries lose exactly the information that would settle this.
Persistent vomiting and the threshold for seeking help Replied, post #21 · Safety › Adverse events · 20 Aug 2025 · 0 likes Confirming post #20 from a second method, which matters more than confirming it from a second person. Medullary thyroid carcinoma is the reason these compounds are…
Coming back to: Resolution and tailing factor: real acceptance criteria Replied, post #27 · Analytics › HPLC & UHPLC · 5 Aug 2025 · 5 likes Column chemistry and particle size: smaller particles (1.7 μm) give better resolution and higher efficiency than larger particles (3.5 μm or 5 μm), at the cost of…
A ten-fold dose error caught before injection — one year on Replied, post #143 · Devices › Syringes & needles · 5 Aug 2025 · 0 likes Coming back to post #139, because the follow-up matters more than the original answer. The practical version of ten-fold dose error caught is three sentences long. The…
What a 2 ppm match establishes, and what it does not Replied, post #39 · Analytics › Mass spectrometry · 5 Aug 2025 · 6 likes This is the answer, and the reason it is the answer is the more useful part.
How to research a compound with no human data without deceiving yourself Replied, post #54 · Compounds › Other compounds · 1 Aug 2025 · 6 likes Research a compound would be much easier to settle if anyone reported the denominator. Almost nobody reports the denominator.
Fatigue in the first month: how much is the drug and how much is intake — what changed… Replied, post #13 · Practice › Side effects · 1 Aug 2025 · 7 likes Fatigue 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.
Second pass at: Why this subcategory is stricter about sourcing than most Replied, post #26 · Compounds › Secretagogues & GH axis · 1 Aug 2025 · 19 likes Published human data on most of this family is thin, old, or from small studies with surrogate endpoints. That is a genuine limitation and it is the honest answer to…
Second pass at: A history of disordered eating: proceeding carefully Replied, post #94 · Wellbeing › Mental health · 21 Jul 2025 · 0 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. It is one reading of the data…
A supplier that answers analytical questions with restated claims Replied, post #117 · Sourcing › Red flags · 13 Jul 2025 · 0 likes Narrowing post #114, because the general version has more than one answer. The strongest single signal available cheaply is what happens when you ask a technical…
Sequence verification for an obscure compound: how it is done Replied, post #86 · Compounds › Other compounds · 8 Jul 2025 · 0 likes Useful. I had the fact and not the reason, which turns out to be the important half.
[2026 update] What the GIP component of tirzepatide is thought to contribute, and how… Replied, post #73 · Compounds › Tirzepatide · 18 Jun 2025 · 25 likes GIP component of tirzepatide 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.
Pre-registering a personal experiment, seriously Replied, post #51 · Research Methods › N-of-1 designs · 30 May 2025 · 22 likes The arithmetic in post #48 is right; the assumption feeding it is the part to check. Genuine question rather than a rhetorical one: has anyone here actually observed…
A report I filed that turned out to be wrong, and the correction Replied, post #69 · Sourcing › Vendor reports · 25 May 2025 · 7 likes Coming back to post #65, because the follow-up matters more than the original answer. Do not adjust a reported figure. Post what the laboratory said and put your…
How Janoshik, Medutest, PeptideMeter and VendorInvestigate differ Replied, post #116 · Sourcing › Independent verification · 18 May 2025 · 3 likes Janoshik Analytical: chromatographic purity and mass-spectrometric identity on submitted samples. Reports are issued with the analytical method stated and a…
Dizziness on standing: the ordinary explanation first Replied, post #25 · Nutrition & Training › Hydration & electrolytes · 29 Apr 2025 · 8 likes Thank you for taking the time. That was more work than a reply usually is.
Adjudicated events and why the definition matters — the long version Replied, post #123 · Evidence › Trials · 28 Apr 2025 · 0 likes Absolute numbers, not just relative: a 30% relative reduction tells you the ratio but not the practical magnitude. The event rate in each arm and the difference between…
Reading a trial's population section before its results — does this still hold? Replied, post #28 · Evidence › Trials · 21 Apr 2025 · 22 likes Building on post #25 rather than restating it. Intent-to-treat versus per-protocol: ITT includes everyone assigned regardless of whether they took the drug.…
Asking about a compound your prescriber has not heard of Replied, post #21 · Clinical › Prescriber conversations · 20 Apr 2025 · 0 likes A question phrased as "what would you want to see before considering X" is answerable and is not a request for X.
Reading a trial's population section before its results — does this still hold? Replied, post #11 · Evidence › Trials · 15 Apr 2025 · 10 likes Confirming post #9 from a second method, which matters more than confirming it from a second person. A treatment-policy estimand asks what happens to people assigned to…
Review: a draft on reconstitution arithmetic, with objections Replied, post #105 · Documentation › Doc review · 14 Apr 2025 · 1 like Taking post #104 at face value and following it one step further. I would put moderate confidence on the mainstream reading of draft on reconstitution arithmetic and no…
Second pass at: Pharmacy supply in the UK and the questions you will be asked Replied, post #25 · Regional › UK & Ireland · 25 Mar 2025 · 2 likes The version of Pharmacy supply that I was taught turned out to be a teaching simplification. Useful, and not true in the way I had assumed it was.
Tirzepatide in obstructive sleep apnoea: reading SURMOUNT-OSA Started this topic · Compounds › Tirzepatide · 23 Mar 2025 · 19 likes Posting this under the heading it deserves: Tirzepatide in obstructive sleep apnoea: reading SURMOUNT-OSA Everything below is what sits behind that. Reading back…
Follow-up: Open-label extensions: what survives and what does not Replied, post #15 · Evidence › Trials · 20 Mar 2025 · 21 likes Narrowing post #12, because the general version has more than one answer. Absolute and relative effects answer different questions. Write down the event rate in each…
Checking someone else's arithmetic: a worked example thread Replied, post #30 · Practice › Reconstitution · 17 Mar 2025 · 29 likes The decimal-point error: computing 5 mg / 2 mL as 0.25 mg/mL instead of 2.5 mg/mL is the most common arithmetic error in this subcategory. The habit that catches it:…
Validating a method you did not develop — does this still hold? Replied, post #95 · Analytics › Method validation · 10 Mar 2025 · 0 likes Narrowing post #94, because the general version has more than one answer. Reporting a result to more decimal places than the method's precision supports is a small…
Second pass at: Cross-border purchase within the EU: the actual rules Replied, post #83 · Access › International · 7 Mar 2025 · 0 likes Regional practice around what a pharmacy will and will not do varies enormously and is not deducible from the regulatory position. Speaking for myself and not for…
Validating a method you did not develop — does this still hold? Replied, post #76 · Analytics › Method validation · 5 Mar 2025 · 0 likes A stability-indicating method is one demonstrated to resolve the analyte from its degradation products, usually through forced degradation. Calling a method…
Second pass at: Manufacturer assistance programmes and their eligibility rules Replied, post #10 · Access › Pricing · 1 Mar 2025 · 0 likes This follows post #7 rather than contradicting it. Discount programmes and coupons: manufacturers often offer coupons that reduce out-of-pocket costs if insurance is…
A 5 mg vial and a 0.25 mg dose: the arithmetic in full — the long version Replied, post #39 · Practice › Reconstitution · 23 Feb 2025 · 28 likes Worth separating two things that post #37 runs together. How much of the diluent volume the powder itself displaces: for a small peptide vial, the powder volume is…
A 10 mg vial reconstituted three different ways, compared — the long version Replied, post #13 · Practice › Reconstitution · 19 Feb 2025 · 0 likes Do not shake. Swirl, or leave it. Vigorous agitation introduces air and shear, and neither helps a peptide go into solution any faster than patience does. I would put…
Random versus fixed effects: choosing rather than defaulting — a second dataset Replied, post #69 · Evidence › Meta-analyses · 7 Feb 2025 · 0 likes Second-hand on Random versus fixed effects, so weight it accordingly — someone whose method I trust told me this and I have not verified it myself.
[2026 update] What the GIP component of tirzepatide is thought to contribute, and how… Replied, post #10 · Compounds › Tirzepatide · 4 Feb 2025 · 0 likes Taking post #7 at face value and following it one step further. Research-use-only tirzepatide is not approved for human use and is not made to pharmaceutical standards.…
Criticising the method without criticising the authors Replied, post #35 · Evidence › Study critique · 28 Jan 2025 · 4 likes A definition problem is doing most of the work in this criticising the method without criticising discussion. Once the term is pinned down I suspect the disagreement…
Telehealth prescribing models in the US Replied, post #46 · Regional › North America · 16 Jan 2025 · 6 likes The public assessment documents published at approval are free, detailed and largely unread here. I would put a moderate confidence on that and no more.
Building a sensible monitoring schedule with your prescriber Replied, post #77 · Clinical › Bloodwork · 21 Dec 2024 · 2 likes Picking up post #74: that is the part I would want checked first. Glycaemic markers integrate over different periods. A point glucose and a longer-term marker…
Building a sensible monitoring schedule with your prescriber Replied, post #68 · Clinical › Bloodwork · 21 Dec 2024 · 0 likes Repeat before acting is standard practice for an isolated abnormal result on most analytes, and it is standard for a reason.
Gallbladder disease risk with rapid weight loss Replied, post #41 · Clinical › Comorbidities · 9 Dec 2024 · 0 likes Post-authorisation safety studies are the place where under-studied populations eventually appear, and they are public. Take the reasoning and check the arithmetic; I…
Gallbladder disease risk with rapid weight loss Replied, post #38 · Clinical › Comorbidities · 2 Dec 2024 · 31 likes Cardiovascular disease: several compounds have cardiovascular outcome trials. SELECT was in people without diabetes; SUSTAIN 6 was in high-risk diabetes. Absolute…
Asking about a compound your prescriber has not heard of — one year on Replied, post #8 · Clinical › Prescriber conversations · 25 Nov 2024 · 28 likes Coming back to post #4, because the follow-up matters more than the original answer. Where you disagree, saying so plainly and asking for the reasoning is better than…
SURPASS-2 and the comparator dose question that will not go away Replied, post #58 · Compounds › Tirzepatide · 17 Nov 2024 · 24 likes Post #54 put the caveat in the right place and I want to underline it. SURPASS-2's comparator choice is the criticism that survives. Semaglutide 1.0 mg was the licensed…
Journal club: SURMOUNT-1, read without the press release Replied, post #13 · Evidence › Journal club · 12 Nov 2024 · 4 likes The figures usually contain the finding and the text usually contains the interpretation. Separating them for the first twenty minutes is a discipline worth keeping. It…
Time to steady state after a dose increase Replied, post #154 · Pharmacology › Pharmacokinetics · 6 Nov 2024 · 0 likes Useful. I have added it to my own notes with the date on it.
Request: a diff view for wiki revisions Replied, post #19 · Meta › Feature requests · 24 Oct 2024 · 11 likes Small methodological point on diff view for wiki revisions: repeating a measurement is cheap and resolves most of what is being argued about here at no cost to anyone.
Follow-up: Oral contraceptives and delayed emptying: what the data shows Replied, post #21 · Practice › Interactions · 22 Oct 2024 · 23 likes Speaking only to Oral contraceptives and delayed emptying as I have actually seen it, rather than as it is usually described: the effect is real, it is smaller than the…
Hypertension improvement and when medication needs revisiting — a second dataset Replied, post #72 · Clinical › Comorbidities · 21 Oct 2024 · 9 likes What I would tell a new member reading about Hypertension improvement for the first time: the confident posts are not the reliable ones, and the reliable ones are longer.
Second pass at: Hoarding and why it makes a shortage worse Replied, post #37 · Access › Shortages · 10 Oct 2024 · 1 like Both are useful and different. The notice tells you the national position; the account tells you what is happening on the ground.
Irish differences from the UK position Replied, post #21 · Regional › UK & Ireland · 4 Oct 2024 · 16 likes This follows post #18 rather than contradicting it. A request rather than an answer: could whoever has the primary source for irish differences post it? I have seen the…
Pen mechanics when the cartridge is nearly empty Replied, post #3 · Devices › Pens & autoinjectors · 21 Sep 2024 · 0 likes Priming exists because the needle and the cartridge path contain air after a needle change. Skipping it means the first fraction of the dose is not liquid. If anyone…
Progressive overload when the scale is falling — one year on Replied, post #54 · Nutrition & Training › Resistance training · 14 Sep 2024 · 0 likes Reduced appetite makes fuelling a session harder, and that is a practical problem with practical solutions rather than a reason to stop.
Reporting a discrepancy without making an allegation Replied, post #58 · Sourcing › Vendor reports · 5 Sep 2024 · 2 likes I keep a log for reporting a discrepancy specifically because my memory of it turned out to be systematically wrong in one direction. Six weeks of notes cost nothing…
Correlation in a self-tracked dataset: what it can support Replied, post #111 · Research Methods › Statistics · 24 Aug 2024 · 12 likes The useful distinction on correlation is between what was measured and what was inferred from it. Both end up in the same sentence and only one of them has error bars.
Pen wastage and its effect on real cost Replied, post #15 · Access › Pricing · 12 Aug 2024 · 0 likes Picking up post #14: that is the part I would want checked first. Landed cost including shipping, fees and currency conversion is what you actually pay, and quotes that…
Second pass at: Journal club: LEADER as the historical anchor Replied, post #65 · Evidence › Journal club · 25 Jul 2024 · 24 likes Adding the measurement that post #62 says would settle it. The baseline characteristics table is the single most useful page for the questions that get asked here,…
How this community labels and discusses unrefereed work Replied, post #103 · Evidence › Preprints · 22 Jul 2024 · 0 likes On post #101 — agreed on the reasoning, with one qualification. Source for the community labels figure, since it was asked for. It is in the discussion rather than the…
Cold packs, phase-change material, and what survives ten days Replied, post #40 · Sourcing › Logistics · 24 Jun 2024 · 0 likes Two people in this thread mean different things by cold packs and are disagreeing about the definition while believing they are disagreeing about the facts. Worth…