t.steenkamp

TL2 Member · Lund, SE

Based in the EU. Tracks what is available and funded locally, and dates every claim.

Joined 5 September 2025 · last posted 20d · groups: regional-eu

76 posts, newest first. Showing up to 150.

How shortages have affected compounding permissions — does this still hold? Replied, post #23 · Access › Shortages · 8 Jul 2026 · 6 likes Building on post #22 rather than restating it. Both are useful and different. The notice tells you the national position; the account tells you what is happening on the…
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #93 · Sourcing › Vendor reports · 30 Jun 2026 · 29 likes Dosing and purity: a vial that is 99% pure might contain 80% of its label claim if the other mass is water, counter-ion, and excipient. Purity and content are…
Request: a per-category review queue Replied, post #65 · Meta › Feature requests · 28 Jun 2026 · 0 likes I read post #61 twice before replying, because I had assumed the opposite. Adding the boring version of per-category review queue, because the interesting version keeps…
Second pass at: Metformin co-administration and additive GI effects Replied, post #129 · Practice › Interactions · 19 Jun 2026 · 7 likes This is the first time the answer has come with its own limits attached. Appreciated.
Tracking intake honestly when appetite is absent Replied, post #62 · Nutrition & Training › Protein & intake · 16 Jun 2026 · 21 likes Timing of protein: spreading protein intake across the day, with some at each meal, is more practical than trying to hit the whole target at one sitting on suppressed…
A certificate whose chromatogram axes do not match its stated method — one year on Replied, post #50 · Sourcing › Red flags · 4 Jun 2026 · 0 likes Evasion when asked: if a supplier does not clarify when asked specifically for method details, counter-ion form, or batch origin, that itself is a red flag worth…
Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #42 · Analytics › Method validation · 4 Jun 2026 · 0 likes Forced degradation under acid, base, oxidation, heat and light is how specificity is actually demonstrated. The chromatograms from that work are more informative than…
[2026 update] A vial that will not fully dissolve: what to check and in what order Replied, post #58 · Practice › Reconstitution · 17 May 2026 · 7 likes Confirming post #57 from a second method, which matters more than confirming it from a second person. A vial that will not fully dissolve: check in order: is the…
The 2.5 mg starting dose is not a therapeutic dose — why that matters Replied, post #127 · Compounds › Tirzepatide · 16 May 2026 · 18 likes Building on post #126 rather than restating it. What I would check first on 2.5 mg starting dose is whether the thing being measured moved or whether the way of…
Constipation management, with a dietitian's contribution Replied, post #64 · Practice › Side effects · 12 May 2026 · 33 likes Worth separating two things that post #62 runs together. Reading back through the constipation management threads from last year, the same three questions come up every…
Step therapy requirements and how to satisfy them Replied, post #14 · Access › Insurance & coverage · 9 May 2026 · 3 likes Nothing here is legal or medical advice, and appeal processes differ enough by jurisdiction and payer that specifics do not transfer. Happy to be the one who is wrong…
[2026 update] Thyroid function tests during substantial weight change Replied, post #58 · Clinical › Bloodwork · 5 May 2026 · 17 likes Time of day: some biomarkers vary across the day. Cortisol in the morning differs from cortisol in the evening. Comparing results from different times of day is…
Coming back to: Lateral-flow and colorimetric approaches: the specificity problem Replied, post #13 · Analytics › Home & field testing · 3 May 2026 · 2 likes A home refractometer is not measuring what people hope it is measuring in these preparations, and the readings are dominated by everything other than the peptide.…
Second pass at: Cagrilintide molecular characteristics and analytical considerations Started this topic · Compounds › Cagrilintide & amylin analogues · 1 May 2026 · 0 likes On the subject in the title: Second pass at: Cagrilintide molecular characteristics and analytical considerations Working notes rather than a conclusion. Something…
Five questions in one post gets you one answer — how to split them Replied, post #65 · Start Here › How to Ask · 26 Apr 2026 · 0 likes Post #63 is right about the mechanism and I think understates the practical bit. Context that matters: compound, how long in, current dose, relevant history. Context…
[2026 update] Charge states for a 4 kDa peptide, worked through Replied, post #84 · Analytics › Mass spectrometry · 15 Apr 2026 · 25 likes On post #80 — agreed on the reasoning, with one qualification. Charge states is well covered in the tag pages, and the older discussions are better than the recent ones…
Shakes versus food: a pragmatic assessment Replied, post #4 · Nutrition & Training › Protein & intake · 14 Apr 2026 · 0 likes Micronutrition alongside protein: eating protein foods that are also good sources of micronutrients (iron, B vitamins, zinc) solves two problems at once. It is a small…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #40 · Sourcing › Logistics · 12 Apr 2026 · 22 likes Coming back to post #38, because the follow-up matters more than the original answer. Import restrictions by jurisdiction: what is legal to import for personal use…
Bug report: the reconstitution calculator and a rounding edge case Replied, post #37 · Data & Tools › Calculators · 6 Apr 2026 · 0 likes Narrowing post #34, because the general version has more than one answer. Significant figures in the output should not exceed what the inputs support. A concentration…
A supplier who responds to a discrepancy with silence — what changed since Replied, post #19 · Sourcing › Red flags · 20 Mar 2026 · 18 likes The guidelines draw that line for a practical reason as much as a fair one: reports accumulate into something useful and allegations do not.
Transporting a vial for a weekend away — a second dataset Replied, post #3 · Practice › Storage & stability · 6 Mar 2026 · 0 likes The opening post put the caveat in the right place and I want to underline it. An update on my earlier Transporting a vial post: the pattern held for another six weeks…
Why "dose equivalence" between different incretin analogues is a weak concept Replied, post #76 · Practice › Dosing & titration · 19 Feb 2026 · 0 likes Post #75 put the caveat in the right place and I want to underline it. Micro-titration: the concept of increments smaller than the labelled steps. It has no evidence…
Pregnancy and pregnancy planning: contraindication and washout Replied, post #41 · Clinical › Special populations · 13 Feb 2026 · 0 likes Confirming post #40 from a second method, which matters more than confirming it from a second person. Dedicated trials in under-studied populations are the only real…
Second pass at: Identical chromatograms across two different lots Replied, post #3 · Sourcing › Red flags · 11 Feb 2026 · 12 likes This follows the opening post rather than contradicting it. Prices well below the rest of the market are a fact rather than a finding. They are worth noting and they do…
"Greater than or equal to 99%" as a specification rather than a result Replied, post #124 · Analytics › COA interpretation · 3 Feb 2026 · 6 likes "Not less than 98 per cent" is a specification. "98.3 per cent" is a result. A certificate carrying only the first has not told you what was measured. Happy to be the…
Second pass at: Pregnancy and pregnancy planning: contraindication and washout Replied, post #91 · Clinical › Special populations · 26 Jan 2026 · 1 like Nothing in this subcategory is medical advice and the questions asked here are precisely the ones that need an individual assessment. Adding a source would improve this…
What to include when your question involves a chromatogram Replied, post #20 · Start Here › How to Ask · 4 Jan 2026 · 7 likes Agreed, and I will stop repeating the version of this I had been repeating.
Pinch or no pinch, and how needle length changes the answer — the long version Replied, post #4 · Practice › Administration · 29 Dec 2025 · 33 likes Where the Pinch reasoning breaks down for me is the step from the group result to the individual case. That step is almost never argued for.
Vomiting: when it is expected and when it is a reason to stop Replied, post #31 · Practice › Side effects · 27 Dec 2025 · 30 likes The relationship between symptom burden and outcome is not what people assume. Feeling worse is not evidence of a larger effect and feeling nothing is not evidence of…
DXA precision and the least significant change for lean mass Replied, post #44 · Outcomes › Body composition · 5 Dec 2025 · 25 likes The most useful reply I ever got about DXA precision was a request to state my units. It sounds like pedantry and it has saved me twice.
Sequence verification for an obscure compound: how it is done — what changed since Replied, post #12 · Compounds › Other compounds · 22 Nov 2025 · 3 likes The practical version of Sequence verification is three sentences long. The rigorous version is three pages and reaches the same conclusion with the conditions attached.
Pricing far outside the range, in either direction Replied, post #5 · Sourcing › Red flags · 19 Oct 2025 · 2 likes Picking up post #4: that is the part I would want checked first. The honest answer on pricing far outside the range is that it depends, and the useful part is the list…
The most useful thing you learned here that was not the answer you came for — a second… Replied, post #91 · Lounge › Off topic · 12 Oct 2025 · 11 likes Digression worth the space: the archive is starting to be genuinely long. There are questions here whose good answer is four years old and still correct, and that only…
Pinch or no pinch, and how needle length changes the answer Replied, post #98 · Practice › Administration · 7 Oct 2025 · 28 likes A note on how pinch gets discussed rather than on pinch itself: the confident posts get the replies and the careful ones get ignored, and the careful ones have been…
Documentation that materially improves an appeal's chances Replied, post #13 · Access › Insurance & coverage · 29 Sep 2025 · 9 likes Post #11 answers the question as asked. The question underneath it is different. Templates in the documentation set are deliberately dull because dullness is what works…
When to stop reading forums, including this one Replied, post #30 · Wellbeing › Mental health · 27 Sep 2025 · 13 likes The arithmetic in post #29 is right; the assumption feeding it is the part to check. Motivation and expectation: starting with clear motivation and realistic…
What a confidence interval means, from scratch — the long version Replied, post #2 · Research Methods › Statistics · 25 Sep 2025 · 0 likes The opening post answers the question as asked. The question underneath it is different. A confidence interval is a statement about a procedure rather than about this…
How the vendor documentation pages are maintained, and by whom — what changed since Replied, post #53 · Sourcing › Vendor reports · 8 Sep 2025 · 0 likes That is consistent with mine, for whatever one more account is worth.
Coming back to: What published stability data actually covers, and what it does not Replied, post #133 · Practice › Storage & stability · 6 Sep 2025 · 0 likes Everything in post #129 holds. The case it does not cover is the one I have. If someone has run published stability data actually covers properly I would rather read…
Coming back to: Sample size calculations, read backwards from the published number Replied, post #81 · Evidence › Trials · 27 Aug 2025 · 1 like The failure mode on Sample size calculations is boring rather than dramatic. It is almost always the step everyone assumes was done correctly because it is too simple…
Why oral semaglutide needs an absorption enhancer at all Replied, post #28 · Compounds › Oral incretins · 24 Aug 2025 · 10 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…
Research-use-only labelling: what it means and what it does not Replied, post #22 · Sourcing › Regulatory · 15 Aug 2025 · 2 likes Post #20 and I disagree about the size of the effect, not about the direction. The claim about research-use-only labelling upthread is stronger than its source…
A request that was declined, and the reasoning — a second dataset Replied, post #66 · Documentation › Wiki requests · 12 Aug 2025 · 31 likes Post #65 answers the question as asked. The question underneath it is different. Documents that are mostly a worked example age better than documents that are mostly a…
Why one laboratory's 98.4% and another's 96.1% may not contradict Replied, post #16 · Analytics › Method validation · 5 Aug 2025 · 26 likes Everything in post #12 holds. The case it does not cover is the one I have. Range and working range are different things and a certificate rarely distinguishes them.…
Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #2 · Data & Tools › Datasets · 14 Jul 2025 · 1 like Everything in the opening post holds. The case it does not cover is the one I have. Independent test results are the most valuable data this community collects, and…
Revisiting: Filter needles: when they help and what they cost you Replied, post #36 · Devices › Syringes & needles · 13 Jul 2025 · 0 likes Coming back to post #32, because the follow-up matters more than the original answer. I have three months of notes on Filter needles and the honest summary is that the…
Comparing my trajectory with the trial curves, carefully Replied, post #20 · Outcomes › Progress reports · 3 Jul 2025 · 22 likes Narrowing post #17, because the general version has more than one answer. Nothing here is medical advice and a progress report is a description of what happened to one…
Repeatability versus intermediate precision Replied, post #39 · Analytics › Method validation · 22 Jun 2025 · 9 likes Building on post #38 rather than restating it. A definition problem is doing most of the work in this repeatability versus intermediate precision discussion. Once the…
Coming back to: Why quantitation is the hard part, not detection Replied, post #29 · Analytics › Home & field testing · 21 Jun 2025 · 6 likes Quantitation at home is the part that does not survive scrutiny. Precision adequate to distinguish 96 from 98 per cent requires instrumentation and calibration that a…
BPC-157: what the rodent literature actually shows, and what it does not Replied, post #6 · Compounds › Repair & healing peptides · 3 Jun 2025 · 2 likes Post #3 is right about the mechanism and I think understates the practical bit. BPC-157's published evidence is overwhelmingly preclinical and mostly rodent. That is…
The CagriSema phase 2 paper and what a fixed combination buys Replied, post #50 · Compounds › Cagrilintide & amylin analogues · 2 Jun 2025 · 10 likes Everything in post #46 holds. The case it does not cover is the one I have. The monoisotopic mass sits near 3749.9 Da, and the same caveat applies as everywhere else: a…
Counter-ion content and its effect on measured mass Replied, post #47 · Analytics › Mass spectrometry · 25 May 2025 · 0 likes Post #46 is the version of this I will quote in future. One addition. Adding a reference point for counter-ion content. Mine is a single case, collected without…
Anxiety in the first weeks: drug, situation, or both Replied, post #82 · Wellbeing › Mental health · 1 May 2025 · 0 likes My understanding of anxiety is a few years old and may have been superseded. If it has been, I would genuinely like to know rather than keep repeating it.
Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Replied, post #110 · Evidence › Journal club · 22 Apr 2025 · 0 likes Narrowing post #107, because the general version has more than one answer. Sessions on negative or null results are consistently the most instructive and the hardest to…
[2026 update] Building a sensible monitoring schedule with your prescriber Replied, post #3 · Clinical › Bloodwork · 3 Apr 2025 · 0 likes The opening post is right about the mechanism and I think understates the practical bit. Glycaemic markers integrate over different periods. A point glucose and a…
Hepatic steatosis: what the MASH trial evidence supports Replied, post #8 · Clinical › Comorbidities · 26 Mar 2025 · 17 likes This follows post #7 rather than contradicting it. One caution on hepatic steatosis: everything above assumes the underlying documentation is what it claims to be. That…
About the Progress reports category Replied, post #3 · Outcomes › Progress reports · 26 Mar 2025 · 0 likes As a member rather than staff: the most useful thing I did when I started reading this category was to work through the tag pages rather than the topic list. The topic…
Cost per milligram, computed honestly across formats — the long version Replied, post #39 · Access › Pricing · 20 Mar 2025 · 13 likes Compute cost per delivered dose at your dose if you want a number you can act on. Everything else is a comparison of packaging. The short answer was in the first line;…
Charge states for a 4 kDa peptide, worked through Replied, post #103 · Analytics › Mass spectrometry · 14 Mar 2025 · 17 likes Adding a small correction to the charge states summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor that matters.
Counter-ion form: the field almost nobody reports — one year on Replied, post #69 · Analytics › COA interpretation · 11 Mar 2025 · 20 likes An itemised related-substances table with retention times says considerably more about the synthesis than a single total. A total tells you how much is not the main…
Biased agonism: a real phenomenon, an over-used explanation Replied, post #63 · Pharmacology › Receptor biology · 8 Mar 2025 · 9 likes A note on scope: what I am saying about biased agonism applies to the case in the first post and I would not extend it further without checking.
When to suspect the method rather than the sample Replied, post #55 · Analytics › Method validation · 24 Dec 2024 · 0 likes Post #53 and I disagree about the size of the effect, not about the direction. Where a pharmacopoeial monograph exists, a method that follows it inherits a great deal…
Revisiting: Semaglutide formulation: what is in the licensed product besides the peptide Replied, post #25 · Compounds › Semaglutide · 21 Dec 2024 · 1 like Adding a small correction to the Semaglutide formulation summary above rather than a disagreement with it. The substance holds; one of the figures is out by a factor…
Follow-up: What this community means by "a source", in practical terms Replied, post #17 · Start Here › Welcome · 16 Dec 2024 · 1 like 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…
Coming back to: When to suspect the method rather than the sample Replied, post #52 · Analytics › Method validation · 10 Dec 2024 · 7 likes I had read the opposite somewhere and cannot now find where, which tells me something.
[2026 update] Step therapy requirements and how to satisfy them Replied, post #49 · Access › Insurance & coverage · 1 Dec 2024 · 7 likes I would rather this thread reach "we do not know" about Step therapy requirements than reach a confident answer that nobody can support when asked.
Why "any advice?" is the least effective ending for a post Replied, post #39 · Start Here › How to Ask · 15 Nov 2024 · 6 likes The arithmetic in post #38 is right; the assumption feeding it is the part to check. Edit the first post rather than adding the missing detail in reply nine. People…
When "no data" is the complete and final answer Replied, post #17 · Compounds › Other compounds · 8 Nov 2024 · 1 like Post #15 and I disagree about the size of the effect, not about the direction. Thymosin alpha-1 has a regulatory history in several jurisdictions and a real clinical…
Revisiting: Melanocortin agonists: mechanism and the documented adverse profile Replied, post #63 · Compounds › Other compounds · 21 Oct 2024 · 27 likes Picking up post #62: that is the part I would want checked first. Where I have landed on Melanocortin agonists, having got it wrong once in public: the direction is…
Revisiting: How to bring a laboratory report to an appointment usefully Replied, post #123 · Clinical › Bloodwork · 19 Oct 2024 · 3 likes A trend needs at least three points to be a trend. Two points are a line and a line through noise is still a line. Small point, but it is the one that usually catches…
Requesting a page: what makes a good request — what changed since Replied, post #21 · Documentation › Wiki requests · 9 Oct 2024 · 26 likes Reading rather than contributing, but this is the most useful thread I have found on it.
Second pass at: Reimbursement variation across member states Replied, post #10 · Regional › European Union · 17 Sep 2024 · 5 likes Where I part company with post #8, and it is a narrow parting. Reframing Reimbursement variation across member states slightly, because I think the disagreement is…
Follow-up: A site rotation scheme that is easy enough to actually follow Replied, post #15 · Practice › Administration · 8 Sep 2024 · 0 likes The arithmetic in post #14 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…
Correlation in a self-tracked dataset: what it can support Replied, post #60 · Research Methods › Statistics · 22 Aug 2024 · 0 likes I read post #58 twice before replying, because I had assumed the opposite. My experience of correlation contradicts the reply above. I am posting it as a data point…
Circumference measurements as a poor man's composition estimate Replied, post #14 · Outcomes › Body composition · 23 Jul 2024 · 14 likes Building on post #13 rather than restating it. On circumference measurements, I would rather understate and be corrected upward than overstate and be quoted. That is a…
The mass-error checker and its intended scope Replied, post #79 · Data & Tools › Calculators · 27 Jun 2024 · 0 likes The most common input error is entering the vial mass in the concentration field. It produces a plausible number, which is why it survives. Happy to be the one who is…