a.adeyemi

TL2 · Groningen

Contributes reviews on supplier material. Based in Groningen.

Joined 18 March 2025 · last posted 3d

93 posts, newest first. Showing up to 150.

Tracking a shortage from primary sources rather than rumour Replied, post #123 · Access › Shortages · 25 Jul 2026 · 12 likes Post #121 is the version of this I will quote in future. One addition. A shortage of one presentation is not a shortage of all of them, and the published notices are…
Coming back to: Reconciling a supplier certificate with an independent result Replied, post #29 · Sourcing › Vendor reports · 22 Jul 2026 · 9 likes Building on post #26 rather than restating it. Reports naming a supplier need the evidence attached, which is a guideline rather than a formality. It is what makes the…
Coming back to: Batch date after test date, and other internal inconsistencies Replied, post #19 · Analytics › COA interpretation · 20 Jul 2026 · 13 likes The distinction between release testing and characterisation is one industrial documents make and retail ones usually do not. It is the difference between "we tested…
When a dose reduction is the correct response to a side effect Replied, post #40 · Practice › Dosing & titration · 18 Jul 2026 · 0 likes Escalating before steady state means you are judging a dose you have not yet fully experienced. That is the whole argument against compressing the schedule and it is a…
Here for the analytics and not much else Replied, post #14 · Lounge › Introductions · 10 Jul 2026 · 30 likes Welcome. The short version of the culture: be specific, date everything, and say when you are guessing. That is genuinely the whole of it.
[2026 update] Detection wavelength and why 214 nm and 280 nm disagree Replied, post #24 · Analytics › HPLC & UHPLC · 10 Jul 2026 · 0 likes Adding the measurement that post #23 says would settle it. Before anything else: what was the gradient, and at what wavelength? Area percent at different wavelengths is…
How much context is too much context in a first post? Replied, post #61 · Start Here › How to Ask · 9 Jul 2026 · 2 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…
Insomnia at a dose step: reported experiences — the long version Replied, post #41 · Wellbeing › Sleep · 2 Jul 2026 · 7 likes Quietly grateful for the plain phrasing. Not every thread gets that.
What a regulator's shortage notice actually authorises Replied, post #3 · Sourcing › Regulatory · 30 Jun 2026 · 0 likes The arithmetic in the opening post is right; the assumption feeding it is the part to check. Shortage notifications are published by several regulators and are the…
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #7 · Evidence › Journal club · 29 Jun 2026 · 12 likes Confirming post #6 from a second method, which matters more than confirming it from a second person. Adding a null result on SUSTAIN 6. I looked, carefully, and found…
Semaglutide and gastric emptying — the mechanism behind most of the side-effect profile Replied, post #78 · Compounds › Semaglutide · 25 Jun 2026 · 22 likes The 2.4 mg maintenance dose in the weight-management programme and the 1.0 mg diabetes dose are frequently discussed as though they were the same drug at different…
Second pass at: Absence of evidence and evidence of absence Replied, post #22 · Research Methods › Statistics · 15 Jun 2026 · 13 likes Multiple testing inflates the false-positive rate in a way that is entirely predictable and entirely correctable. The correction should be declared in advance. It is…
Request: a per-category review queue Replied, post #34 · Meta › Feature requests · 13 Jun 2026 · 23 likes Second-hand on per-category review queue, so weight it accordingly — someone whose method I trust told me this and I have not verified it myself.
Micronutrient adequacy at low total intake Replied, post #74 · Nutrition & Training › Protein & intake · 12 Jun 2026 · 25 likes Answering the question post #72 raises rather than the one it answers. Fibre and fluid tend to fall alongside protein when intake drops, and the constipation reported…
The anatomy of a question that gets answered within an hour Replied, post #75 · Start Here › How to Ask · 12 Jun 2026 · 0 likes A photograph of a vial is rarely useful and a photograph of a document usually is. Redact the identifiers before you post either. I would call that likely rather than…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #92 · Practice › Storage & stability · 8 Jun 2026 · 0 likes Acknowledging rather than arguing. The reasoning holds as far as I can follow it.
Batch numbers that do not match the vial label — what changed since Replied, post #28 · Sourcing › Red flags · 3 Jun 2026 · 4 likes No disagreement from me. Posting only so the question does not look ignored.
Peak-to-trough ratio at steady state for a weekly agent Replied, post #26 · Pharmacology › Pharmacokinetics · 1 Jun 2026 · 0 likes Loading doses are not used in this class and the pharmacokinetic reason is tolerability rather than efficacy. A loading dose would reach steady state faster and would…
Second pass at: A pooled estimate that changed when one trial was added Replied, post #13 · Evidence › Meta-analyses · 25 May 2026 · 5 likes Reading the pooled figure without reading the inclusion criteria is the equivalent of quoting a trial without its population. Both are common and both are avoidable. It…
Journal club: indirect comparison between two programmes, defended and attacked Replied, post #61 · Evidence › Journal club · 19 May 2026 · 27 likes Thank you — that answers what I came here to find out.
Pancreatitis history and the risk calculus Replied, post #11 · Safety › Contraindications · 18 May 2026 · 6 likes Good question, well framed, and I would like to see it answered properly.
Private prescribing in the UK: what is actually involved Replied, post #16 · Regional › UK & Ireland · 16 May 2026 · 28 likes Compounding pharmacies: UK allows compounding under specific conditions when a licensed product is unavailable. That is not a front-line option but becomes relevant…
Revisiting: The arithmetic of an intermediate dose between two label steps Replied, post #7 · Practice › Dosing & titration · 13 May 2026 · 8 likes If you are stepping up mainly because the schedule says so rather than because the current dose has stopped doing what you wanted, that is worth noticing before rather…
Follow-up: Tirzepatide and nausea: is the profile genuinely different or just… Replied, post #19 · Compounds › Tirzepatide · 3 May 2026 · 5 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…
Journal club: orforglipron phase 2 and the non-peptide question Replied, post #53 · Evidence › Journal club · 2 May 2026 · 3 likes Reading order that works for these sessions: registry entry, methods, baseline table, primary result, then abstract last. Reading the abstract first anchors everything…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #32 · Evidence › Preprints · 17 Apr 2026 · 2 likes Taking post #31 at face value and following it one step further. Always label it as a preprint in any discussion. A preprint is not a published trial and it is not…
List price versus negotiated price versus what you pay Replied, post #68 · Access › Pricing · 14 Apr 2026 · 0 likes Answering the question post #66 raises rather than the one it answers. Offering a way to settle list price versus negotiated price rather than another opinion about it.…
Revisiting: Drawing up with one needle and injecting with another Replied, post #43 · Practice › Administration · 4 Apr 2026 · 27 likes I had read the opposite somewhere and cannot now find where, which tells me something.
Adolescents: a distinct evidence base — one year on Replied, post #78 · Clinical › Special populations · 23 Mar 2026 · 18 likes The honest answer on Adolescents is that it depends, and the useful part is the list of what it depends on. Four items, in rough order of how much they matter. Most…
Revisiting: PCOS and metabolic overlap: what is and is not studied Replied, post #9 · Clinical › Comorbidities · 23 Mar 2026 · 0 likes I had written a reply contradicting post #7 and deleted it. Here is what survived. Counterpoint on PCOS and metabolic overlap, offered without confidence: the same…
Completing a dose with a second syringe, and the dead-volume arithmetic Replied, post #18 · Practice › Administration · 23 Mar 2026 · 0 likes Narrowing post #17, because the general version has more than one answer. Answering the completing a dose question as asked, then the question I think is meant. As…
Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #27 · Start Here › Welcome · 18 Mar 2026 · 0 likes The Lounge is a real category rather than a dumping ground. The sourcing rule still applies there, which surprises people, but the register is looser and nobody minds a…
[2026 update] Currency conversion and the cost you did not see Replied, post #12 · Sourcing › Payments · 16 Mar 2026 · 8 likes Currency conversion was covered in the wiki last year and the page has a review date on it, which is a better starting point than my memory of a thread.
Oral versus injected administration claims for BPC-157 Replied, post #2 · Compounds › Repair & healing peptides · 8 Mar 2026 · 1 like Adding a data point of agreement rather than a data point.
An ABAB design with a data table and honest limitations — a second dataset Replied, post #39 · Research Methods › N-of-1 designs · 6 Mar 2026 · 23 likes A request rather than an answer: could whoever has the primary source for ABAB design post it? I have seen the claim three times this month and each version had lost a…
Nausea profile of amylin analogues compared with GLP-1 agonists Replied, post #36 · Compounds › Cagrilintide & amylin analogues · 2 Mar 2026 · 0 likes The monoisotopic mass sits near 3749.9 Da, and the same caveat applies as everywhere else: a mass consistent with the proposed structure is a necessary condition and…
Completing a dose with a second syringe, and the dead-volume arithmetic Replied, post #9 · Practice › Administration · 25 Feb 2026 · 33 likes Leave real distance between consecutive sites rather than moving a centimetre. Repeatedly injecting one area changes the local tissue over time and eventually changes…
Measurement error in a self-reported exposure Replied, post #73 · Evidence › Study critique · 25 Feb 2026 · 30 likes That is consistent with mine, for whatever one more account is worth.
[2026 update] Amylin and gastric emptying: overlapping mechanisms with incretins Replied, post #3 · Compounds › Cagrilintide & amylin analogues · 24 Feb 2026 · 12 likes The monoisotopic mass sits near 3749.9 Da, and the same caveat applies as everywhere else: a mass consistent with the proposed structure is a necessary condition and…
Storing lyophilised material long term: what governs the shelf life Replied, post #77 · Practice › Storage & stability · 23 Feb 2026 · 10 likes I read the earlier replies on storing lyophilised material long term twice before writing this, because I had assumed the opposite and wanted to be sure I was…
Common supplements people ask about, assessed one at a time — a second dataset Replied, post #54 · Practice › Interactions · 18 Feb 2026 · 18 likes Building on post #53 rather than restating it. Supplements and herbs: many have no established interaction. Some do. If you are taking something unusual, checking a…
A payment that went through twice: how it was resolved Replied, post #16 · Sourcing › Payments · 31 Jan 2026 · 0 likes This is the first time the answer has come with its own limits attached. Appreciated.
A history of disordered eating: proceeding carefully Replied, post #64 · Wellbeing › Mental health · 17 Jan 2026 · 0 likes Sensible. I would want the same detail before I acted on it either.
Second pass at: What "verified" means on our vendor pages, stated narrowly Replied, post #58 · Sourcing › Vendor reports · 16 Jan 2026 · 12 likes Reports of ordinary results are more valuable than reports of remarkable ones, precisely because only the remarkable ones get posted elsewhere. If it helps: the failure…
Interpreting a result that disagrees with the supplier's certificate Replied, post #81 · Sourcing › Independent verification · 15 Jan 2026 · 4 likes Adding the boring version of interpreting a result, because the interesting version keeps getting posted and the boring one is usually right. Check the ordinary…
Angle of injection and whether 90 degrees is always right Replied, post #81 · Practice › Administration · 12 Jan 2026 · 0 likes Building on post #79 rather than restating it. Cold solution and stinging: warming the vial in your hands for a minute before injection reduces the stinging sensation…
Non-inferiority margins: how they are chosen and how they are abused — a second dataset Replied, post #4 · Evidence › Trials · 7 Jan 2026 · 6 likes That is the distinction I keep failing to hold on to. Written down now.
Citation sweep results: how many references did not say what was claimed Replied, post #17 · Meta › Wiki maintenance · 14 Dec 2025 · 0 likes I had written a reply contradicting post #15 and deleted it. Here is what survived. The claim about citation sweep results upthread is stronger than its source…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one Replied, post #83 · Compounds › Oral incretins · 9 Dec 2025 · 26 likes Why administration conditions matter for oral semaglutide and not for injectables: the oral formulation depends on a transient pH effect in the stomach. Anything that…
Anxiety in the first weeks: drug, situation, or both — what changed since Replied, post #59 · Wellbeing › Mental health · 6 Dec 2025 · 25 likes Narrowing post #58, because the general version has more than one answer. What I want from this Anxiety thread is the list of things that would need to be true for the…
Request: a diff view for wiki revisions — the long version Replied, post #71 · Meta › Feature requests · 17 Nov 2025 · 15 likes What I would tell a new member reading about diff view for wiki revisions for the first time: the confident posts are not the reliable ones, and the reliable ones are…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #82 · Compounds › Tirzepatide · 16 Nov 2025 · 20 likes On purity: the trailing-edge features people report on tirzepatide chromatograms are frequently deamidation products, which elute close to the main peak and are easy to…
Revisiting: Why tirzepatide titration schedules have more steps than semaglutide's Replied, post #61 · Compounds › Tirzepatide · 13 Nov 2025 · 1 like Nobody has said the unglamorous part of tirzepatide titration schedules yet, so: most of the variation is explained by things that are boring to write about and easy to…
Pinch or no pinch, and how needle length changes the answer Replied, post #125 · Practice › Administration · 23 Oct 2025 · 2 likes Two questions I would want answered before drawing anything from the pinch data above: how were the cases selected, and what happened to the ones that dropped out.
Payment mechanics and the recovery options that do not exist Replied, post #78 · Sourcing › Payments · 22 Oct 2025 · 24 likes Post #74 describes the usual case. This is about the unusual one. The version of payment mechanics that I was taught turned out to be a teaching simplification. Useful,…
Documentation that materially improves an appeal's chances Replied, post #33 · Access › Insurance & coverage · 19 Oct 2025 · 1 like Keep every document with dates in one place. An appeal months later is assembled from whatever you kept.
Micronutrient adequacy at low total intake — does this still hold? Replied, post #24 · Nutrition & Training › Protein & intake · 8 Oct 2025 · 22 likes Clear enough that I do not think I have a follow-up, which is unusual.
Second pass at: Programming during a large energy deficit Replied, post #31 · Nutrition & Training › Resistance training · 7 Oct 2025 · 7 likes Summarising the Programming during a large energy thread so far, since it is long and the answer is buried: the first reply has the method, the fourth has the…
Insurance and replacement policies, compared — the long version Replied, post #20 · Sourcing › Logistics · 27 Sep 2025 · 2 likes Import restrictions by jurisdiction: what is legal to import for personal use varies enormously by country. Some jurisdictions are quite permissive; others are not.…
Persistent vomiting and the threshold for seeking help Replied, post #28 · Safety › Adverse events · 3 Sep 2025 · 22 likes Severe gastrointestinal events: persistent vomiting, abdominal pain out of proportion, or signs of bowel obstruction warrant urgent evaluation. Mild nausea and…
The nausea timeline across the first four weeks, with a tabulated log Replied, post #27 · Practice › Side effects · 31 Aug 2025 · 17 likes Whatever the answer on nausea timeline turns out to be, the method for getting there is the same: state the assumption, do the arithmetic in public, invite the…
Trial registration and comparing the protocol with the paper Replied, post #32 · Evidence › Trials · 24 Aug 2025 · 11 likes A request rather than an answer: could whoever has the primary source for trial registration post it? I have seen the claim three times this month and each version had…
Reading a supplier's product description as a marketing document Replied, post #58 · Compounds › Other compounds · 16 Aug 2025 · 11 likes Appreciated. The plain phrasing does more work here than a longer post would.
About the Administration category Replied, post #10 · Practice › Administration · 9 Aug 2025 · 0 likes Where I part company with post #6, and it is a narrow parting. Site reactions that appear immediately and settle within a day are described commonly here. Ones that…
Coming back to: Resolution and tailing factor: real acceptance criteria Replied, post #22 · Analytics › HPLC & UHPLC · 31 Jul 2025 · 0 likes If someone has run Resolution and tailing factor properly I would rather read that than my own reconstruction of it. Posting mine only because the thread has gone quiet.
Second pass at: A history of disordered eating: proceeding carefully Replied, post #99 · Wellbeing › Mental health · 29 Jul 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. This has been discussed before and I…
Temperature loggers worth the money Replied, post #11 · Devices › Cold chain · 22 Jul 2025 · 2 likes Temperature excursions: brief excursions above 8 °C are tolerable for most compounds. Hours to a day at room temperature is usually acceptable. Days to weeks at room…
What a 2 ppm match establishes, and what it does not Replied, post #32 · Analytics › Mass spectrometry · 10 Jul 2025 · 0 likes The most useful thing anyone has posted about 2 ppm match in this category was a table of what had been measured and by whom. That is what I would want again.
Whether an aggregate is worth publishing at all: a disputed topic Replied, post #15 · Data & Tools › Datasets · 26 Jun 2025 · 20 likes Adding a data point of agreement rather than a data point.
The CagriSema phase 2 paper and what a fixed combination buys — the long version Replied, post #76 · Compounds › Cagrilintide & amylin analogues · 12 Jun 2025 · 1 like Where I part company with post #74, and it is a narrow parting. Published human data on cagrilintide alone is thinner than on the combination, which is the reverse of…
Second pass at: Retatrutide mass and identity: what a report should show Replied, post #66 · Compounds › Retatrutide · 11 Jun 2025 · 10 likes Taking post #64 at face value and following it one step further. Marking my uncertainty on Retatrutide mass and identity explicitly. I am confident about the direction,…
Second pass at: How to research a compound with no human data without deceiving yourself Replied, post #64 · Compounds › Other compounds · 9 Jun 2025 · 1 like The most useful reply I ever got about research a compound was a request to state my units. It sounds like pedantry and it has saved me twice.
Pre-registering a personal experiment, seriously Replied, post #118 · Research Methods › N-of-1 designs · 4 Jun 2025 · 5 likes Post #115 answers the question as asked. The question underneath it is different. Pre-registering a personal experiment has a well-known answer and a correct answer,…
Ipamorelin selectivity claims and where they came from Replied, post #39 · Compounds › Secretagogues & GH axis · 20 May 2025 · 3 likes Taking post #38 at face value and following it one step further. Ipamorelin selectivity claims is worth one more sentence than it usually gets, and the sentence is the…
Second pass at: Designing a personal experiment that could change your mind Replied, post #8 · Research Methods › N-of-1 designs · 17 May 2025 · 20 likes Blinding yourself is harder than it sounds and is not impossible. Somebody else preparing labelled containers is the usual approach and it requires a second person you…
Tirzepatide in type 2 diabetes: the SURPASS programme, summarised honestly Replied, post #86 · Compounds › Tirzepatide · 16 May 2025 · 8 likes Summarising the tirzepatide in type 2 diabetes thread so far, since it is long and the answer is buried: the first reply has the method, the fourth has the correction…
Adjudicated events and why the definition matters — the long version Replied, post #126 · Evidence › Trials · 29 Apr 2025 · 31 likes I had written a reply contradicting post #124 and deleted it. Here is what survived. Marking my uncertainty on Adjudicated events explicitly. I am confident about the…
Delayed gastric emptying and oral medication absorption: which drugs matter Replied, post #52 · Practice › Interactions · 18 Apr 2025 · 22 likes Post #51 answers the question as asked. The question underneath it is different. Delayed gastric emptying is the mechanism behind most of the plausible interactions in…
Counter-ion form: the field almost nobody reports — one year on Replied, post #109 · Analytics › COA interpretation · 22 Mar 2025 · 10 likes This is the answer, and the reason it is the answer is the more useful part.
Charge states for a 4 kDa peptide, worked through Replied, post #134 · Analytics › Mass spectrometry · 17 Mar 2025 · 5 likes Electrospray on a peptide of this size gives a multiply charged series rather than a single ion. Seeing only one charge state usually means the deconvolution has…
Talking to a therapist about this specifically — does this still hold? Replied, post #28 · Wellbeing › Mental health · 11 Mar 2025 · 1 like If you are in crisis, contact a local emergency or crisis service rather than posting. A volunteer forum cannot help and waiting costs time.
Second pass at: Cross-border purchase within the EU: the actual rules Replied, post #90 · Access › International · 10 Mar 2025 · 0 likes Everything in post #86 holds. The case it does not cover is the one I have. Country-by-country legality: compound approval and legal status differ substantially by…
Biased agonism: a real phenomenon, an over-used explanation Replied, post #43 · Pharmacology › Receptor biology · 5 Mar 2025 · 0 likes Adding the measurement that post #40 says would settle it. GIP receptor biology is genuinely contested. Both agonism and antagonism have been argued to produce weight…
A 10 mg vial reconstituted three different ways, compared — the long version Replied, post #16 · Practice › Reconstitution · 26 Feb 2025 · 33 likes Where I part company with post #14, and it is a narrow parting. A vial that will not fully dissolve: check in order: is the diluent genuinely room temperature (some…
Identical chromatograms across two different lots Replied, post #70 · Sourcing › Red flags · 1 Jan 2025 · 29 likes Offering a way to settle identical chromatograms rather than another opinion about it. Two measurements, taken the same way, a fortnight apart. If the difference is…
Why "any advice?" is the least effective ending for a post Replied, post #116 · Start Here › How to Ask · 7 Dec 2024 · 0 likes Building on post #115 rather than restating it. Quantities without units are the single commonest reason a question sits unanswered. "Two and a half" is not a dose, a…
UK access routes, dated and sourced — a second dataset Replied, post #6 · Regional › UK & Ireland · 11 Nov 2024 · 0 likes Grateful for the specificity. Vague answers to this question are what sent me looking.
Food noise reducing and the disorientation that can follow Replied, post #38 · Wellbeing › Mental health · 11 Nov 2024 · 10 likes Nothing to add on the substance. Thank you for taking the question at face value.
Revisiting: How to bring a laboratory report to an appointment usefully Replied, post #118 · Clinical › Bloodwork · 17 Oct 2024 · 4 likes Bring a laboratory is worth one more sentence than it usually gets, and the sentence is the one about how the number was arrived at.
Second pass at: Hoarding and why it makes a shortage worse Replied, post #40 · Access › Shortages · 10 Oct 2024 · 18 likes No notes. Posting so the count is not one.
Request: a diff view for wiki revisions Replied, post #14 · Meta › Feature requests · 30 Sep 2024 · 6 likes Duplicate requests: if several people request the same feature, the requests often get merged. Check whether your feature has already been suggested before posting.…
Second pass at: Sodium, potassium and magnesium when intake drops Replied, post #24 · Nutrition & Training › Hydration & electrolytes · 3 Aug 2024 · 0 likes Building on post #21 rather than restating it. Symptoms attributed to electrolytes here are non-specific and overlap with dehydration, low intake and poor sleep.…
Splitting a weekly dose in two: the pharmacokinetic argument against — the long version Replied, post #144 · Practice › Dosing & titration · 10 Jul 2024 · 25 likes Adding the measurement that post #141 says would settle it. The four-week escalation interval is a convention from the pivotal trials, not a pharmacological constant.…