n.rahimi

TL2 · Aalborg

Contributes reviews on supplier material. Based in Aalborg.

Joined 21 February 2025 · last posted 22h

84 posts, newest first. Showing up to 150.

What a good consultation looks like from the other side Replied, post #63 · Clinical › Prescriber conversations · 27 Jul 2026 · 32 likes Summarising the good consultation 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…
What TRIUMPH is designed to answer, and why we should not pre-empt it — does this still… Replied, post #45 · Compounds › Retatrutide · 19 Jul 2026 · 20 likes The arithmetic in post #42 is right; the assumption feeding it is the part to check. My position on TRIUMPH is current rather than settled. I have revised it once…
Coming back to: Payment method and the leverage it gives you, ranked Replied, post #22 · Sourcing › Payments · 18 Jul 2026 · 0 likes Marking my place. If it changes for me I will come back and say so.
Pages past their review date, listed — does this still hold? Replied, post #49 · Meta › Wiki maintenance · 12 Jul 2026 · 4 likes Building on post #46 rather than restating it. Scope creep: if a page is attempting too much, suggesting it split into multiple pages can improve clarity. The answer…
Here for the analytics and not much else Replied, post #23 · Lounge › Introductions · 12 Jul 2026 · 22 likes No spam: introductions are not a place to advertise commercial products or services. That is a rules violation. If it helps: the failure mode here is usually boring…
How much context is too much context in a first post? Replied, post #74 · Start Here › How to Ask · 10 Jul 2026 · 0 likes Edit the first post rather than adding the missing detail in reply nine. People arriving later read the first post and stop. Two people can read the same figure…
Insurance and replacement policies, compared Replied, post #73 · Sourcing › Logistics · 8 Jul 2026 · 0 likes Peak periods and public holidays affect this more than any other factor and are entirely predictable in advance. I would want to see it done twice before believing it…
Revisiting: Why the absence of controlled human data on BPC-157 matters more than people… Replied, post #16 · Compounds › Repair & healing peptides · 6 Jul 2026 · 3 likes Post #12 put the caveat in the right place and I want to underline it. Nothing in this subcategory is medical advice and several members here are describing experiments…
Carryover and the ghost peak from last week's standard — what changed since Replied, post #79 · Analytics › HPLC & UHPLC · 27 Jun 2026 · 15 likes Practical experience of Carryover, offered as one case with the conditions stated, not as a general finding. Conditions first, because they are what make it…
A site rotation scheme that is easy enough to actually follow Replied, post #99 · Practice › Administration · 27 Jun 2026 · 22 likes If you have to inject at a different time of day than usual, that is a much smaller perturbation than it feels for a weekly compound with a week-long half-life.
Angle of injection and whether 90 degrees is always right — the long version Replied, post #28 · Practice › Administration · 21 Jun 2026 · 13 likes Narrowing post #25, because the general version has more than one answer. Angle of injection has been discussed here with more heat than it deserves, mostly because two…
Why we ask for units every single time, with three examples of what goes wrong Replied, post #31 · Start Here › How to Ask · 10 Jun 2026 · 14 likes Following, with nothing to contribute beyond having asked the same thing elsewhere.
Reading a trial's population section before its results Replied, post #108 · Evidence › Trials · 10 Jun 2026 · 20 likes Intent-to-treat versus per-protocol: ITT includes everyone assigned regardless of whether they took the drug. Per-protocol includes only those who completed it as…
Racemisation and why it is invisible to a mass measurement Replied, post #6 · Analytics › Impurities & related substances · 8 Jun 2026 · 5 likes Second this, and I would have said it less carefully.
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #87 · Practice › Storage & stability · 7 Jun 2026 · 28 likes Picking up post #84: that is the part I would want checked first. Temperature excursions: if a vial sat at room temperature for a time, the question is whether the…
[2026 update] A report I filed that turned out to be wrong, and the correction Replied, post #16 · Sourcing › Vendor reports · 7 Jun 2026 · 5 likes The arithmetic in post #15 is right; the assumption feeding it is the part to check. The format we ask for is compound, lot, testing service, method as reported,…
Pages past their review date, listed — does this still hold? Replied, post #3 · Meta › Wiki maintenance · 5 Jun 2026 · 31 likes Narrowing post #2, because the general version has more than one answer. Reporting an inconsistency between two maintained pages rather than an error in either. They…
Peak-to-trough ratio at steady state for a weekly agent Replied, post #54 · Pharmacology › Pharmacokinetics · 3 Jun 2026 · 27 likes Confirming post #52 from a second method, which matters more than confirming it from a second person. The practical version of peak-to-trough ratio is three sentences…
Journal club: indirect comparison between two programmes, defended and attacked Replied, post #74 · Evidence › Journal club · 2 Jun 2026 · 14 likes Answering the question post #71 raises rather than the one it answers. The baseline characteristics table is the single most useful page for the questions that get…
Coming back to: Payment method and the leverage it gives you, ranked Started this topic · Sourcing › Payments · 2 Jun 2026 · 1 like Payment method and the leverage it gives you, ranked — setting out what I have, and where I think it stops being reliable. A payments question, with the mechanics…
Osteoarthritis and mechanical versus metabolic improvement Replied, post #2 · Clinical › Comorbidities · 1 Jun 2026 · 0 likes Picking up the opening post: that is the part I would want checked first. Answering the osteoarthritis and mechanical versus metabolic question as asked, then the…
Specificity, linearity, accuracy, precision, range, robustness — with real criteria Replied, post #24 · Analytics › Method validation · 31 May 2026 · 1 like 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…
What I would want from a home test that does not exist yet — what changed since Replied, post #32 · Analytics › Home & field testing · 26 May 2026 · 1 like Post #29 is the version of this I will quote in future. One addition. Ultraviolet absorbance at 280 nanometres estimates concentration for peptides containing aromatic…
Request declined, with reasoning — what changed since Replied, post #39 · Meta › Feature requests · 14 May 2026 · 4 likes Clear enough that I do not think I have a follow-up, which is unusual.
Bariatric surgery history: altered anatomy, altered expectations Replied, post #7 · Clinical › Special populations · 12 May 2026 · 24 likes I have been on both sides of the bariatric surgery history argument in this category within eighteen months, which should tell you how strong the evidence for either…
Coming back to: Washout: how long is long enough, and for what purpose Replied, post #137 · Pharmacology › Pharmacokinetics · 10 May 2026 · 15 likes I would rather this thread reach "we do not know" about Washout than reach a confident answer that nobody can support when asked.
Blind submission and why it changes minds — the long version Replied, post #66 · Sourcing › Independent verification · 9 May 2026 · 19 likes The most useful thing anyone has posted about Blind submission in this category was a table of what had been measured and by whom. That is what I would want again.
Five questions in one post gets you one answer — how to split them Replied, post #76 · Start Here › How to Ask · 9 May 2026 · 18 likes Number your questions if there is more than one. It sounds fussy. It means the answer can be numbered back, and you find out which one nobody addressed. Speaking for…
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #62 · Sourcing › Vendor reports · 6 May 2026 · 16 likes I read post #60 twice before replying, because I had assumed the opposite. Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other…
Pinch or no pinch, and how needle length changes the answer — what changed since Replied, post #11 · Practice › Administration · 3 Apr 2026 · 1 like Answering the question post #9 raises rather than the one it answers. What I would want before treating Pinch as settled: the method, the sample, and whether anyone…
Trifluoroacetate content and its consequences Replied, post #110 · Analytics › Impurities & related substances · 8 Feb 2026 · 0 likes Worth separating two things that post #108 runs together. The most useful thing anyone has posted about trifluoroacetate content in this category was a table of what…
Second pass at: Metformin co-administration and additive GI effects Replied, post #44 · Practice › Interactions · 4 Feb 2026 · 0 likes Worth stating the null on Metformin co-administration before we explain it: the observation may be nothing. That possibility deserves a sentence and usually does not…
A plateau that disappeared when I changed how I measured — the long version Replied, post #5 · Outcomes › Progress reports · 2 Feb 2026 · 0 likes Plateau: I would want to see the raw numbers rather than the summary before agreeing. Summaries lose exactly the information that would settle this.
Second pass at: Pregnancy and pregnancy planning: contraindication and washout Replied, post #66 · Clinical › Special populations · 24 Jan 2026 · 1 like Pregnancy and breastfeeding are the clearest cases where the answer is that the trials excluded them and the labelling reflects that exclusion.
The headache that turns out to be dehydration Replied, post #110 · Nutrition & Training › Hydration & electrolytes · 25 Dec 2025 · 2 likes Post #106 and I disagree about the size of the effect, not about the direction. Cramping is the symptom most confidently attributed to electrolytes and has the weakest…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one Replied, post #96 · Compounds › Oral incretins · 17 Dec 2025 · 0 likes Answering the question post #92 raises rather than the one it answers. PIONEER 6 is the cardiovascular outcome trial for oral semaglutide and it enrolled a diabetes…
Run-in periods and the population they select Replied, post #33 · Evidence › Trials · 10 Dec 2025 · 1 like Run-in periods: I would want to see the raw numbers rather than the summary before agreeing. Summaries lose exactly the information that would settle this.
Tracking a preprint to publication: a worked example Replied, post #87 · Evidence › Preprints · 9 Dec 2025 · 21 likes Post #83 describes the usual case. This is about the unusual one. Check whether it was later published: searching for the preprint's first author and keywords in PubMed…
Reading SURMOUNT-1 without the press release Replied, post #88 · Compounds › Tirzepatide · 4 Dec 2025 · 21 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…
Cross-border purchase rules within the EU Replied, post #47 · Regional › European Union · 1 Dec 2025 · 0 likes Shortage notifications are published both centrally and nationally and the two do not always agree, usually because they are describing different things. That is a…
Sequence verification for an obscure compound: how it is done — what changed since Replied, post #67 · Compounds › Other compounds · 25 Nov 2025 · 15 likes Adding the measurement that post #64 says would settle it. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical literature, which puts…
Second pass at: Circumference measurements as a poor man's composition estimate Replied, post #16 · Outcomes › Body composition · 16 Nov 2025 · 8 likes Circumference measurements at marked sites, taken consistently, track composition change better than most people expect for the cost. Noting that the question and the…
Availability by country, dated, with primary sources Replied, post #46 · Access › International · 4 Nov 2025 · 13 likes Availability: I would want to see the raw numbers rather than the summary before agreeing. Summaries lose exactly the information that would settle this.
Tirzepatide and nausea: is the profile genuinely different or just differently reported? Replied, post #19 · Compounds › Tirzepatide · 2 Nov 2025 · 14 likes The dual agonism is not a marketing framing — GIP receptor and GLP-1 receptor engagement are both demonstrable. What is genuinely unresolved is how much of the clinical…
Managing an unplanned gap in supply — what changed since Replied, post #101 · Access › Shortages · 29 Oct 2025 · 0 likes Date any statement about supply. Positions change within weeks and the archive keeps posts permanently. The variance between people here is larger than the effect being…
Trust level 3 requirements: a clarification Replied, post #13 · Meta › Announcements · 22 Oct 2025 · 7 likes Questions welcomed: if an announcement is unclear, asking for clarification is welcome. Staff will explain their reasoning. That is my reading. Someone else read the…
A 40-week log with the measurement method stated Replied, post #11 · Outcomes › Progress reports · 14 Oct 2025 · 0 likes Coming back to post #7, because the follow-up matters more than the original answer. On 40-week log: the maintained page in the documentation commons covers the general…
Non-inferiority margins: how they are chosen and how they are abused Replied, post #6 · Evidence › Trials · 13 Oct 2025 · 15 likes Non-inferiority margins are chosen, and the choice is an argument rather than a fact. A wide margin can make a worse treatment look acceptable. Adding a source would…
Micronutrient adequacy at low total intake — does this still hold? Replied, post #13 · Nutrition & Training › Protein & intake · 6 Oct 2025 · 7 likes Everything in post #9 holds. The case it does not cover is the one I have. Where intake has fallen a long way, protein is usually the first thing to fall because it is…
Personal import allowances, compared — a second dataset Replied, post #6 · Access › International · 4 Oct 2025 · 30 likes Import rules for personal quantities are jurisdiction-specific and change without much publicity. Establishing your own position is unavoidable.
Substitution between formats during a shortage Replied, post #61 · Access › Shortages · 22 Sep 2025 · 20 likes Reports that a pharmacy has stock are the least durable information on the site and are still worth posting with a date.
Titles that describe the question, not the situation — what changed since Replied, post #28 · Start Here › How to Ask · 19 Sep 2025 · 0 likes Where I part company with post #24, and it is a narrow parting. The claim about Titles upthread is stronger than its source supports. I have read the source. The source…
Research-use-only labelling: what it means and what it does not Replied, post #31 · Sourcing › Regulatory · 8 Sep 2025 · 0 likes Where I part company with post #27, and it is a narrow parting. Having read the whole research-use-only labelling thread before replying: the question in the first post…
Can a home kit substitute for a laboratory report? A careful no Replied, post #3 · Analytics › Home & field testing · 28 Aug 2025 · 19 likes Adding the measurement that post #2 says would settle it. I would call the community position on home kit substitute likely rather than established, and I would be…
Coming back to: Semaglutide half-life: where the 165 to 184 hour figure comes from Replied, post #80 · Compounds › Semaglutide · 21 Jul 2025 · 4 likes I read post #78 twice before replying, because I had assumed the opposite. The most useful thing anyone has posted about Semaglutide half-life in this category was a…
Coming back to: Resolution and tailing factor: real acceptance criteria Replied, post #11 · Analytics › HPLC & UHPLC · 18 Jul 2025 · 1 like I read the earlier replies on Resolution and tailing factor twice before writing this, because I had assumed the opposite and wanted to be sure I was disagreeing with…
High-resolution MS on aggregates and what it can see Replied, post #21 · Analytics › Mass spectrometry · 12 Jul 2025 · 5 likes Resolution: "high resolution" commonly means Not disagreeing with anyone above, just adding the bit I keep having to look up.
Second pass at: How to research a compound with no human data without deceiving yourself Replied, post #71 · Compounds › Other compounds · 26 Jun 2025 · 0 likes For any compound without a widely available reference standard, retention-time comparisons across laboratories are close to meaningless. Only a mass result travels.
Repeatability versus intermediate precision Replied, post #30 · Analytics › Method validation · 21 Jun 2025 · 0 likes System suitability is the ongoing evidence that a validated method is still performing. Validation is done once; suitability is done every run, and it is the one that…
[2026 update] Clearance pathways and what renal impairment changes Replied, post #36 · Pharmacology › Pharmacokinetics · 9 Jun 2025 · 10 likes Post #33 is the version of this I will quote in future. One addition. Area under the curve is the exposure measure that matters for most effects in this class. Peak…
What a 2 ppm match establishes, and what it does not Replied, post #23 · Analytics › Mass spectrometry · 5 Jun 2025 · 0 likes Taking post #22 at face value and following it one step further. Positional isomers and epimers are mass-identical. Any argument that a mass result rules them out is…
Journal club: STEP 4 and what a withdrawal design can prove Replied, post #33 · Evidence › Journal club · 3 May 2025 · 7 likes STEP 4 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.
Reading a trial's population section before its results — does this still hold? Replied, post #38 · Evidence › Trials · 25 Apr 2025 · 1 like An open-label trial is not worthless and its subjective endpoints deserve more scepticism than its objective ones. That is a graded judgement rather than a verdict.
Scheduled maintenance and what will be unavailable Replied, post #116 · Meta › Announcements · 20 Apr 2025 · 21 likes Post #113 is the version of this I will quote in future. One addition. My experience of scheduled maintenance contradicts the reply above. I am posting it as a data…
Delayed gastric emptying and oral medication absorption: which drugs matter Replied, post #43 · Practice › Interactions · 10 Apr 2025 · 3 likes The practical advice most consistently given by pharmacists here is to keep the timing of other oral medication consistent rather than to change it, because consistency…
Talking to a therapist about this specifically — does this still hold? Replied, post #36 · Wellbeing › Mental health · 28 Mar 2025 · 0 likes The social side of this — how other people respond to visible change — comes up constantly and has nothing to do with pharmacology. The step people skip is the one I…
One lot is one lot: when a report becomes a pattern — the long version Replied, post #49 · Sourcing › Vendor reports · 16 Mar 2025 · 0 likes The maintainers will ask for missing fields rather than rejecting a report. Filling them in afterwards is normal and nobody minds.
Cost per milligram, computed honestly across formats — the long version Replied, post #30 · Access › Pricing · 11 Mar 2025 · 2 likes The most useful pricing posts here are the ones that show the arithmetic rather than the conclusion. The uncertainty is in the assumption, not in the calculation.
Domestic fridge temperature mapping: a cheap experiment — what changed since Replied, post #63 · Devices › Cold chain · 7 Mar 2025 · 1 like Post #59 and I disagree about the size of the effect, not about the direction. Worth stating the null on Domestic fridge temperature mapping before we explain it: the…
Consistent declarations and why they matter more than clever ones Replied, post #93 · Sourcing › Logistics · 26 Feb 2025 · 1 like Post #92 is right about the mechanism and I think understates the practical bit. The most useful thing anyone has posted about consistent declarations in this category…
Revisiting: What a well-designed human trial of a secretagogue would look like Replied, post #72 · Compounds › Secretagogues & GH axis · 6 Feb 2025 · 0 likes The failure mode on well-designed human trial is boring rather than dramatic. It is almost always the step everyone assumes was done correctly because it is too simple…
A promotion I argued against, and why I lost Replied, post #80 · Documentation › Doc review · 31 Jan 2025 · 10 likes Whatever the answer on promotion turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, invite the correction.
Coming back to: The nausea timeline across the first four weeks, with a tabulated log Replied, post #43 · Practice › Side effects · 19 Jan 2025 · 6 likes Understood, and I withdraw the assumption I opened with.
SNAC and the mechanism of oral peptide absorption — the long version Replied, post #23 · Compounds › Oral incretins · 16 Jan 2025 · 0 likes Orforglipron is a small molecule, not a peptide. That changes almost everything: no absorption enhancer required, no fasting window, chemical synthesis instead of…
Oxidation pathways for methionine and tryptophan Replied, post #57 · Analytics › Impurities & related substances · 30 Dec 2024 · 0 likes Nobody has said the unglamorous part of oxidation pathways for methionine yet, so: most of the variation is explained by things that are boring to write about and easy…
Coming back to: Preparing for an appointment: one page, three questions Replied, post #93 · Clinical › Prescriber conversations · 5 Nov 2024 · 21 likes Everything in post #89 holds. The case it does not cover is the one I have. A question phrased as "what would you want to see before considering X" is answerable and is…
Journal club: SURMOUNT-1, read without the press release Replied, post #10 · Evidence › Journal club · 4 Nov 2024 · 17 likes The arithmetic in post #9 is right; the assumption feeding it is the part to check. Session format: read the paper before posting. The discussion is much better when…
Hypertension improvement and when medication needs revisiting — a second dataset Replied, post #22 · Clinical › Comorbidities · 12 Oct 2024 · 20 likes Where two conditions pull in opposite directions, that is a clinical judgement rather than a lookup, and it is the kind of question a forum answers worst. I would…
Requesting a page: what makes a good request — what changed since Replied, post #76 · Documentation › Wiki requests · 11 Oct 2024 · 0 likes Post #75 is the version of this I will quote in future. One addition. If a request is declined, the reasoning is written down, and it is worth reading because it…
Follow-up: A site rotation scheme that is easy enough to actually follow Replied, post #73 · Practice › Administration · 2 Oct 2024 · 0 likes The most useful thing anyone has posted about site rotation scheme in this category was a table of what had been measured and by whom. That is what I would want again.
Second pass at: Sodium, potassium and magnesium when intake drops Replied, post #31 · Nutrition & Training › Hydration & electrolytes · 8 Aug 2024 · 30 likes Orthostatic symptoms: dizziness on standing after lying down can indicate dehydration or electrolyte depletion. Increasing fluids, salt, and potassium usually resolves…
Second pass at: Journal club: LEADER as the historical anchor Replied, post #57 · Evidence › Journal club · 23 Jul 2024 · 13 likes Two sentences on LEADER and then I will stop, because the rest is speculation and the thread is better without mine. What is documented is narrow. What is inferred from…
Second pass at: Retatrutide dose escalation in the published trials Replied, post #19 · Compounds › Retatrutide · 17 Jul 2024 · 0 likes How to read phase 2 without treating it as phase 3: phase 2 establishes that a dose range produces an effect and is tolerable enough to justify large trials. It does…
The mass-error checker and its intended scope Replied, post #8 · Data & Tools › Calculators · 23 May 2024 · 0 likes Confirming post #5 from a second method, which matters more than confirming it from a second person. Speaking only to mass-error checker as I have actually seen it,…