SHermansen

TL2 Member · Gdynia, PL

Keeps a personal log and shares the numbers when they are relevant, with the measurement caveats attached.

Joined 9 August 2025 · last posted 5d

85 posts, newest first. Showing up to 150.

Reading a rodent study on a secretagogue without over-extrapolating — the long version Replied, post #58 · Compounds › Secretagogues & GH axis · 23 Jul 2026 · 0 likes Worth separating two things that post #54 runs together. IGF-1 as a surrogate: it is a better integrated measure than a spot growth hormone level and it is still a…
HbA1c lag and what it can and cannot tell you at eight weeks — one year on Replied, post #19 · Clinical › Bloodwork · 14 Jul 2026 · 6 likes Lipid panel interpretation: total, LDL, HDL, triglycerides all on one panel. Reading them together is more informative than reading one value in isolation. An elevated…
An 18-month record including the parts that went badly Replied, post #67 · Outcomes › Progress reports · 12 Jul 2026 · 8 likes Exercise volume changes: increasing exercise intensity or duration can mask weight loss (muscle gain) on the scale. Noting exercise changes when reporting weight helps…
What is genuinely unknown about long-term amylin agonism Replied, post #25 · Compounds › Cagrilintide & amylin analogues · 11 Jul 2026 · 1 like Cagrilintide molecular characteristics: it is a synthetic amylin analogue, substituted to prevent the amyloidogenicity of human amylin. The sequence is short and…
Immortal time bias in a claims-database study — one year on Replied, post #8 · Evidence › Study critique · 5 Jul 2026 · 9 likes Coming back to post #6, because the follow-up matters more than the original answer. What makes a methodological criticism substantive: it identifies a specific feature…
Micro-titration: a disputed topic, argued properly Replied, post #87 · Practice › Dosing & titration · 10 Jun 2026 · 6 likes Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own…
Micronutrient adequacy at low total intake Replied, post #14 · Nutrition & Training › Protein & intake · 6 Jun 2026 · 0 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…
An appeal that succeeded, with the letter structure — the long version Replied, post #41 · Access › Insurance & coverage · 2 Jun 2026 · 2 likes Generic versus brand: most of these compounds do not have generic versions yet. Once they do, formulary coverage and pricing will shift.
Reading a trial's population section before its results Replied, post #66 · Evidence › Trials · 29 May 2026 · 1 like Generalisability: the enrolled population was selected in ways that matter. Entry criteria, run-in periods, and the simple fact that people who agree to a multi-year…
Revisiting: Primary endpoint hierarchies and why order matters Replied, post #21 · Evidence › Trials · 11 May 2026 · 29 likes The estimand: what the trial set out to estimate. Two trials can be identical in structure but estimate different things by using different handling rules for people…
Reimbursement variation across member states Replied, post #5 · Regional › European Union · 2 May 2026 · 16 likes On the opening post — agreed on the reasoning, with one qualification. EMA is the regulator with national implementation. Licensed incretin analogues are…
[2026 update] 0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Replied, post #55 · Devices › Syringes & needles · 23 Apr 2026 · 0 likes Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can…
Coming back to: Time to steady state after a dose increase Replied, post #33 · Pharmacology › Pharmacokinetics · 15 Apr 2026 · 3 likes post #32 is right about the mechanism and I think understates the practical bit. Volume of distribution: the theoretical volume the drug distributes into. For…
Coming back to: Solubility limits and what a cloudy solution is telling you Replied, post #14 · Pharmacology › Formulation chemistry · 9 Apr 2026 · 2 likes I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The distinction being drawn does not survive when you look at…
Reading a home test result without over-claiming Replied, post #4 · Analytics › Home & field testing · 3 Apr 2026 · 8 likes the opening post is right about the mechanism and I think understates the practical bit. What physical quantity does the device measure? A colorimetric or lateral-flow…
Pharmacy supply in the UK and the questions you will be asked Replied, post #95 · Regional › UK & Ireland · 28 Mar 2026 · 6 likes Worth separating two things that post #91 runs together. Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did…
Second pass at: Adsorptive losses at low concentration, and why dilute solutions are… Replied, post #71 · Practice › Storage & stability · 23 Mar 2026 · 3 likes Refrigeration slows degradation. Repeated warming and cooling is worse than continuous refrigeration. Light exposure is worth avoiding. The concentration matters…
Introducing myself: pharmacist, sceptic, reluctant participant Replied, post #10 · Lounge › Introductions · 17 Mar 2026 · 1 like Privacy: share only what you are comfortable making permanent and public. An introduction is archived and searchable; do not include information you will later regret…
Anaesthesia and elective surgery: the aspiration question Replied, post #44 · Practice › Interactions · 9 Mar 2026 · 24 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…
Storing lyophilised material long term: what governs the shelf life Replied, post #84 · Practice › Storage & stability · 27 Feb 2026 · 0 likes Container choice matters: the material of the vial, the rubber closure, the fill volume all affect how quickly the contents degrade. Smaller fill volumes lose less to…
About the How to Ask category Replied, post #9 · Start Here › How to Ask · 8 Feb 2026 · 2 likes This follows post #6 rather than contradicting it. Chromatogram questions: describe the method first. Column type, gradient, wavelength, detection method. Everything…
Measurement error in home scales, with a worked standard deviation Replied, post #2 · Research Methods › Statistics · 2 Feb 2026 · 1 like the opening post answers the question as asked. The question underneath it is different. For anyone arriving from a search: the marked solution above is the direct…
Travelling with an injectable: documentation and practicalities Replied, post #8 · Access › International · 30 Jan 2026 · 0 likes I read post #6 twice before replying, because I had assumed the opposite. Currency and exchange rates: paying in different currencies has different costs and risks.…
Adolescents: a distinct evidence base — one year on Replied, post #58 · Clinical › Special populations · 27 Jan 2026 · 8 likes I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The distinction being drawn does not survive when you look at…
Dead volume across syringe and needle combinations Replied, post #58 · Devices › Syringes & needles · 21 Jan 2026 · 20 likes This follows post #55 rather than contradicting it. Sharps disposal: needles and syringes should be disposed in a sharps container (a rigid, puncture-resistant…
Coming back to: What the published dose-response for semaglutide actually looks like… Replied, post #6 · Compounds › Semaglutide · 15 Jan 2026 · 11 likes This follows post #3 rather than contradicting it. Is there a ceiling dose beyond which the effect plateaus? The trials did not study that because they stopped at 2.4…
Coming back to: Washout: how long is long enough, and for what purpose Replied, post #5 · Pharmacology › Pharmacokinetics · 30 Dec 2025 · 0 likes post #4 answers the question as asked. The question underneath it is different. Fasting requirement for oral semaglutide: food and large fluid volumes reduce…
A history of disordered eating: proceeding carefully Replied, post #44 · Wellbeing › Mental health · 30 Dec 2025 · 23 likes For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.
Vomiting: when it is expected and when it is a reason to stop Replied, post #39 · Practice › Side effects · 27 Dec 2025 · 0 likes Worth separating two things that post #35 runs together. Pancreatitis: a rare but serious event with a specific presentation (epigastric pain, back pain, elevated…
Reused chromatograms across lots: how to spot it Replied, post #9 · Analytics › COA interpretation · 20 Dec 2025 · 5 likes When a document puts the specification in the result column, it has told you the release criterion, not the measurement. Those are different claims and the second is…
Second pass at: The topic list is dense — is that deliberate? Replied, post #16 · Meta › Site feedback · 9 Dec 2025 · 1 like Worth separating two things that post #12 runs together. Accessibility: screen readers, keyboard navigation, contrast, font size — if something is not accessible to…
Temperature loggers worth the money — the long version Replied, post #86 · Devices › Cold chain · 3 Dec 2025 · 0 likes Shipping container and cold packs: reputable suppliers use insulated containers with cold packs designed to arrive cool. Checking on arrival that cold packs are still…
Older adults, sarcopenia risk, and the trade-off nobody quantifies — the long version Replied, post #58 · Clinical › Special populations · 28 Nov 2025 · 5 likes Worth separating two things that post #54 runs together. Older adults: sarcopenia risk is higher, polypharmacy is common, and the clinical trials did not enroll many…
[2026 update] What a good consultation looks like from the other side Replied, post #5 · Clinical › Prescriber conversations · 26 Nov 2025 · 20 likes Clarifying indication: if a compound is approved for diabetes but you have obesity without diabetes, clarify whether your clinician considers this off-label use and…
When a dose reduction is the correct response to a side effect — a second dataset Replied, post #2 · Practice › Dosing & titration · 24 Nov 2025 · 5 likes the opening post answers the question as asked. The question underneath it is different. For anyone arriving from a search: the marked solution above is the direct…
What "marked as solution" means and who gets to mark it — does this still hold? Replied, post #11 · Start Here › Welcome · 13 Nov 2025 · 7 likes Marked solutions are the site's way of saying that someone asked a good question and someone else gave an answer that actually worked. It is not a competition and it…
What a confidence interval means, from scratch — the long version Replied, post #10 · Research Methods › Statistics · 25 Oct 2025 · 26 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
SURMOUNT-4 and what withdrawal data does and does not tell an individual — one year on Replied, post #73 · Compounds › Tirzepatide · 22 Oct 2025 · 19 likes Coming back to post #71, because the follow-up matters more than the original answer. Titration schedules for tirzepatide have more dose steps than semaglutide partly…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one Replied, post #8 · Compounds › Oral incretins · 17 Oct 2025 · 0 likes Oral bioavailability is variable between people. Some people absorb well; others absorb poorly. That inter-individual variation is larger than with injectables and is…
Follow-up: The decimal-point error, and the habit that catches it Replied, post #63 · Practice › Reconstitution · 20 Sep 2025 · 1 like Osmolarity and reconstitution: the osmolarity of the reconstituted solution affects comfort on injection. Isotonic solutions (close to blood osmolarity) are less…
What the GIP component of tirzepatide is thought to contribute, and how confident we can… Replied, post #41 · Compounds › Tirzepatide · 17 Sep 2025 · 0 likes Picking up post #38: that is the part I would want checked first. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the…
Biological variation versus analytical imprecision — does this still hold? Started this topic · Clinical › Bloodwork · 16 Sep 2025 · 56 likes The question in the title: Biological variation versus analytical imprecision — does this still hold? I will give what I have already checked below so nobody repeats…
Titles that describe the question, not the situation Replied, post #87 · Start Here › How to Ask · 3 Sep 2025 · 31 likes Coming back to post #85, because the follow-up matters more than the original answer. Context that matters: compound, how long in, current dose, relevant history.…
A preprint whose numbers changed substantially at publication Replied, post #24 · Evidence › Preprints · 20 Aug 2025 · 20 likes Do not build anything on a preprint that you would mind rebuilding: if the preprint later changes substantially in revision or shows different results when published,…
BPC-157: what the rodent literature actually shows, and what it does not Replied, post #32 · Compounds › Repair & healing peptides · 19 Aug 2025 · 0 likes Worth separating two things that post #28 runs together. Reading a preclinical wound-healing model: the model shows whether a mechanism is plausible in a specific…
EU-wide position versus national implementation Replied, post #24 · Regional › European Union · 9 Aug 2025 · 19 likes Picking up post #21: that is the part I would want checked first. Netherlands: CBG-MEB implements framework. GPs are first point of contact. Insurance coverage for…
Travel coolers and how long they really hold Replied, post #69 · Devices › Cold chain · 7 Aug 2025 · 0 likes I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The distinction being drawn does not survive when you look at…
A request that was declined, and the reasoning — a second dataset Replied, post #8 · Documentation › Wiki requests · 5 Aug 2025 · 26 likes Picking up post #5: that is the part I would want checked first. Format suggestions: if you think a maintained page could be clearer in its presentation (different…
When a preprint is the best available evidence and we say so Replied, post #20 · Evidence › Preprints · 3 Aug 2025 · 6 likes This follows post #17 rather than contradicting it. I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The…
How to research a compound with no human data without deceiving yourself Replied, post #66 · Compounds › Other compounds · 2 Aug 2025 · 5 likes Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather than quietly editing. The correction was fair and I had…
Power cut for eleven hours: how I assessed it afterwards Replied, post #3 · Practice › Storage & stability · 21 Jul 2025 · 0 likes This follows post #2 rather than contradicting it. Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still…
Promotion criteria, and the one that stops most nominations — the long version Replied, post #24 · Documentation › Doc review · 11 Jul 2025 · 33 likes Coming back to post #22, because the follow-up matters more than the original answer. Review of promoted topics: when a topic is nominated for promotion to a maintained…
"Greater than or equal to 99%" as a specification rather than a result Replied, post #5 · marked as the solution · Analytics › COA interpretation · 9 Jul 2025 · 8 likes On the opening post — agreed on the reasoning, with one qualification. Counter-ion form is crucial: peptides are isolated as salts, most often trifluoroacetate from…
Meeting a protein target on a suppressed appetite Replied, post #8 · Nutrition & Training › Protein & intake · 5 Jul 2025 · 19 likes Protein supplements: whey, casein, and plant-based protein powders can help hit targets when whole-food intake is limited by appetite. Protein quality (all essential…
A supplier that answers analytical questions with restated claims Replied, post #108 · Sourcing › Red flags · 30 Jun 2025 · 11 likes post #107 answers the question as asked. The question underneath it is different. Thank you for the correction. I have edited my earlier post with a note rather than…
Antibiotics and a course of something with delayed emptying Replied, post #74 · Practice › Interactions · 25 Jun 2025 · 7 likes Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can…
The CagriSema phase 2 paper and what a fixed combination buys — the long version Replied, post #124 · Compounds › Cagrilintide & amylin analogues · 17 Jun 2025 · 0 likes Worth separating two things that post #120 runs together. Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly rather…
Reading a denial letter as a specification for your appeal Started this topic · Access › Insurance & coverage · 15 Jun 2025 · 14 likes Reading a denial letter as a specification for your appeal Writing it up because I had to work it out twice and would rather nobody else did. A coverage question with…
The CagriSema phase 2 paper and what a fixed combination buys — the long version Replied, post #86 · Compounds › Cagrilintide & amylin analogues · 13 Jun 2025 · 0 likes This follows post #83 rather than contradicting it. What is genuinely unknown about long-term amylin agonism: real-world response rates, whether effect is durable with…
[2026 update] What the GIP component of tirzepatide is thought to contribute, and how… Replied, post #67 · Compounds › Tirzepatide · 7 Jun 2025 · 16 likes Worth separating two things that post #63 runs together. The GIP component: GIP receptor agonism is thought to amplify the GLP-1 effect on satiety and energy…
Coming back to: Why quantitation is the hard part, not detection Replied, post #21 · Analytics › Home & field testing · 30 May 2025 · 1 like Picking up post #18: that is the part I would want checked first. Enzyme assays: if you have an enzyme that reacts specifically with your compound, an enzyme-based…
Half-life, steady state, and accumulation worked through Replied, post #5 · Pharmacology › Pharmacokinetics · 20 May 2025 · 8 likes On the opening post — agreed on the reasoning, with one qualification. SNAC (the oral bioavailability enhancer): sodium N-(8-[2-hydroxybenzoyl]amino) caprylate…
Delayed gastric emptying and oral medication absorption: which drugs matter Replied, post #76 · Practice › Interactions · 7 May 2025 · 5 likes Insulin interaction: semaglutide and tirzepatide are not contraindicated with insulin but the combination carries hypoglycemia risk if insulin doses are not adjusted.…
Journal club: SURMOUNT-1, read without the press release Replied, post #108 · Evidence › Journal club · 2 May 2025 · 32 likes SOUL (N Engl J Med 2025): Oral semaglutide cardiovascular outcomes. Extends the cardiovascular evidence to the oral formulation. Note that oral bioavailability is lower…
Reading order for a first week here, and what to skip until later Replied, post #95 · Start Here › Welcome · 22 Apr 2025 · 26 likes post #94 is right about the mechanism and I think understates the practical bit. The compound and evidence pages are updated regularly and they are worth reading when…
Adjudicated events and why the definition matters — the long version Replied, post #102 · Evidence › Trials · 16 Apr 2025 · 4 likes The estimand: what the trial set out to estimate. Two trials can be identical in structure but estimate different things by using different handling rules for people…
Adjudicated events and why the definition matters — the long version Replied, post #97 · Evidence › Trials · 13 Apr 2025 · 30 likes Open-label design: unblinded trials admit expectation effects. For weight-loss trials where one arm loses substantial weight and the other does not, complete blinding…
A certificate with no method stated: what can you conclude? Replied, post #57 · Analytics › COA interpretation · 11 Apr 2025 · 5 likes Endotoxin testing is separate: a certificate of purity says nothing about endotoxin. A chemically pure preparation can carry a clinically significant endotoxin load. If…
Why cagrilintide alone is discussed so much less than in combination Replied, post #93 · Compounds › Cagrilintide & amylin analogues · 2 Apr 2025 · 8 likes For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add the caveats that make it safe to use.
When a tidy document is a signal and when it is decoration Replied, post #2 · Analytics › COA interpretation · 2 Apr 2025 · 21 likes the opening post is right about the mechanism and I think understates the practical bit. For anyone arriving from a search: the marked solution above is the direct…
Review cadence: how often is a page actually re-checked? Replied, post #5 · marked as the solution · Documentation › Doc review · 1 Apr 2025 · 8 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
Coming back to: Why quantitation is the hard part, not detection Started this topic · Analytics › Home & field testing · 19 Mar 2025 · 8 likes Why quantitation is the hard part, not detection — that is the question, and I have not found it answered plainly anywhere I have looked. Posting the method first,…
Counter-ion form: the field almost nobody reports — one year on Replied, post #61 · Analytics › COA interpretation · 8 Mar 2025 · 0 likes post #60 answers the question as asked. The question underneath it is different. A certificate of analysis is a statement by its issuer that a defined test was…
[2026 update] New subcategory: rationale and scope Replied, post #141 · Meta › Announcements · 12 Jan 2025 · 2 likes Notifications: watching this subcategory means you receive notifications when announcements are posted. Useful if you want to stay current.
Gallbladder disease risk with rapid weight loss Replied, post #51 · Clinical › Comorbidities · 1 Jan 2025 · 12 likes I read post #49 twice before replying, because I had assumed the opposite. Type 2 diabetes: the population with the largest evidence base for these compounds. The…
Persistent vomiting and the threshold for seeking help — one year on Replied, post #32 · Safety › Adverse events · 21 Dec 2024 · 7 likes Coming back to post #30, because the follow-up matters more than the original answer. Medullary thyroid carcinoma is the reason these compounds are contraindicated in…
Building a sensible monitoring schedule with your prescriber Replied, post #52 · Clinical › Bloodwork · 20 Dec 2024 · 0 likes Biological variation: the person-to-person variation in a biomarker for a healthy person is larger than most people realize. Comparing your result to the reference…
What we do not know about retatrutide, listed explicitly Replied, post #25 · Compounds › Retatrutide · 18 Dec 2024 · 25 likes I read post #23 twice before replying, because I had assumed the opposite. Triple agonism: is the effect additive, synergistic, or neither? A phase 2 comparison of…
Follow-up: Where the four-week escalation interval comes from, and what it is not Replied, post #112 · Practice › Dosing & titration · 25 Nov 2024 · 16 likes Thank you for the correction. I have edited my earlier post with a note rather than silently, so the thread still makes sense to read. The error was mine and it was the…
Research-use-only status: what it means legally and practically — a second dataset Replied, post #18 · Compounds › Other compounds · 12 Nov 2024 · 0 likes Research-use-only status is a legal classification, not a safety classification. It means the compound is sold for laboratory use and not for human consumption or…
Revisiting: Moderation log format change Replied, post #7 · Meta › Announcements · 26 Oct 2024 · 3 likes Two things before anyone answers the substance. First, the context in the first post is clear and specific. Second, the question is framed so that an answer can…
Requesting a page: what makes a good request — what changed since Replied, post #29 · Documentation › Wiki requests · 10 Oct 2024 · 13 likes This follows post #26 rather than contradicting it. I disagree with the reply above, and I think the disagreement is substantive rather than terminological. The…
Progressive overload when the scale is falling — one year on Replied, post #43 · Nutrition & Training › Resistance training · 10 Sep 2024 · 20 likes Intensity: using weights that allow 6 to 12 reps before fatigue is a reasonable range for preserving muscle. Heavier weights with lower reps can work but require more…
Follow-up: Oral contraceptives and delayed emptying: what the data shows Replied, post #11 · Practice › Interactions · 20 Aug 2024 · 0 likes SGLT2 inhibitors: frequently co-administered and relevant to renal and cardiovascular discussion, not to interactions. There is no pharmacokinetic interaction of concern.
Coming back to: Purity assay versus content assay: two different numbers Replied, post #67 · Analytics › COA interpretation · 13 Aug 2024 · 4 likes A certificate of analysis is a statement by its issuer that a defined test was performed on a defined lot and produced a defined result. That is all it is, and it is…