h.frisk

TL2 Moderator · Aalborg

Contributes reviews on supplier material. Based in Aalborg.

Joined 3 March 2025 · last posted 5d

82 posts, newest first. Showing up to 150.

Seven-day rolling means and why weekly readings mislead Replied, post #87 · Outcomes › Progress reports · 23 Jul 2026 · 0 likes Longitudinal report with the method stated: same scale, same time of day, same conditions. A scale is a tool; use the same one each time. Consistency matters more than…
What a certificate commits its issuer to — one year on Replied, post #115 · Analytics › COA interpretation · 22 Jul 2026 · 31 likes Sterility testing is separate: chromatographic purity, mass spectrometry, and endotoxin testing all say nothing about whether a solution is sterile. If sterility…
Revisiting: Hepatic effects of glucagon receptor agonism: the mechanistic worry Replied, post #9 · Compounds › Retatrutide · 21 Jul 2026 · 30 likes Why this subcategory is more cautious than elsewhere: retatrutide is investigational, phase 3 is ongoing, and the heart-rate signal in phase 2 is not negligible.…
Rewriting my first post: a before-and-after, with commentary — what changed since Replied, post #13 · Start Here › How to Ask · 5 Jul 2026 · 0 likes Avoid "any advice?" at the end. It is so generic that people do not know which part of the post it refers to. Pick the specific part and ask that specific question…
Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Replied, post #56 · Evidence › Journal club · 2 Jul 2026 · 16 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…
Revisiting: How this community labels and discusses unrefereed work Replied, post #13 · Evidence › Preprints · 2 Jul 2026 · 18 likes Server repositories: medRxiv for medicine, bioRxiv for biology. Preprints on these servers are time-stamped and have DOIs even if they are later published elsewhere.…
Revisiting: The best-written scientific paper you have read Replied, post #26 · Lounge › Off topic · 11 Jun 2026 · 0 likes I read post #24 twice before replying, because I had assumed the opposite. Humour: light, relevant humour is welcome. Cruel humour targeting individuals or groups is not.
[2026 update] A vial that will not fully dissolve: what to check and in what order Replied, post #101 · Practice › Reconstitution · 10 Jun 2026 · 27 likes On post #97 — agreed on the reasoning, with one qualification. Choosing a concentration on purpose rather than by accident: starting with "I want to draw 0.5 mL per…
CJC-1295 with and without DAC: what the modification does Replied, post #73 · Compounds › Secretagogues & GH axis · 2 Jun 2026 · 4 likes Tesamorelin has an approved indication in HIV-associated lipodystrophy. That is the only compound in this class with a registration-quality evidence base from a proper…
Prescription requirements and telehealth models — a second dataset Replied, post #48 · Sourcing › Regulatory · 31 May 2026 · 2 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…
[2026 update] Regional warehouse stock versus direct despatch Replied, post #82 · Sourcing › Logistics · 27 May 2026 · 6 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.
Transporting a vial for a weekend away — a second dataset Replied, post #54 · Practice › Storage & stability · 15 May 2026 · 0 likes Vial integrity: once a vial is entered with a needle repeatedly, the rubber closure degrades and the integrity fails. Using the same vial repeatedly over weeks or…
Subgroup analyses: pre-specified versus discovered — a second dataset Replied, post #80 · Evidence › Trials · 9 May 2026 · 1 like 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…
Foaming during reconstitution and whether it matters — the long version Replied, post #116 · Practice › Reconstitution · 29 Apr 2026 · 0 likes Why "add 2 mL" is not an instruction: the powder in the vial takes up space. "Add 2 mL to a 10 mL vial" and "add 2 mL of diluent so the final volume is approximately 2…
Converting between mg/mL and units per dose, both directions — the long version Replied, post #14 · Practice › Reconstitution · 18 Apr 2026 · 30 likes Osmolarity and reconstitution: the osmolarity of the reconstituted solution affects comfort on injection. Isotonic solutions (close to blood osmolarity) are less…
Two scans six weeks apart on different machines: a cautionary tale Replied, post #2 · Outcomes › Body composition · 17 Apr 2026 · 31 likes Lean mass loss during rapid weight reduction: depends on protein intake, resistance training volume, and total energy deficit. Adequate protein and maintaining training…
Grapefruit: why this class is not the class that cares Replied, post #115 · Practice › Interactions · 3 Apr 2026 · 0 likes Coming back to post #113, because the follow-up matters more than the original answer. Sulfonylureas and meglitinides: these agents stimulate insulin release and carry…
Coming back to: Why a preprint's supplementary material is often the best part Replied, post #4 · Evidence › Preprints · 1 Mar 2026 · 16 likes I read post #2 twice before replying, because I had assumed the opposite. Preprints for speed: some important preliminary findings are posted as preprints to…
Nausea profile of amylin analogues compared with GLP-1 agonists Replied, post #30 · Compounds › Cagrilintide & amylin analogues · 27 Feb 2026 · 14 likes Gastric emptying: both amylin and GLP-1 slow it, through partly overlapping but distinct mechanisms. Whether the slowing at a higher magnitude produces disproportionate…
Restarting after a long gap: what the labelling implies — the long version Replied, post #5 · Practice › Dosing & titration · 24 Feb 2026 · 9 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…
Revisiting: A page that has drifted out of date and needs a maintainer Replied, post #91 · Documentation › Wiki requests · 16 Feb 2026 · 0 likes Cross-referencing: if you notice two pages that should reference each other but do not, suggest the cross-reference.
Foaming during reconstitution and whether it matters — the long version Replied, post #34 · Practice › Reconstitution · 14 Feb 2026 · 8 likes A vial that will not fully dissolve: check in order: is the diluent genuinely room temperature (some preservatives crystallise in cold), is the vial being warmed gently…
Coming back to: A community side-effect dataset, with its response rate and biases Replied, post #19 · Data & Tools › Datasets · 26 Jan 2026 · 19 likes I read post #17 twice before replying, because I had assumed the opposite. Combining data from different sources: datasets from this site are not directly comparable to…
Manufacturer assistance programmes and their eligibility rules Replied, post #2 · Access › Pricing · 23 Jan 2026 · 6 likes I read the opening post twice before replying, because I had assumed the opposite. Cost per milligram is the only comparison that survives format differences, but even…
Pen mechanics when the cartridge is nearly empty — does this still hold? Replied, post #43 · Devices › Pens & autoinjectors · 13 Jan 2026 · 33 likes post #42 answers the question as asked. The question underneath it is different. For anyone arriving from a search: the marked solution above is the direct answer, and…
Analytical identity of BPC-157: a 15-mer with a simple mass — does this still hold? Replied, post #4 · Compounds › Repair & healing peptides · 12 Jan 2026 · 0 likes For anyone arriving from search engines: this subcategory discusses published preclinical work and the absence of published clinical work. It does not endorse or…
Guidelines revision: what changed and why — one year on Replied, post #51 · Meta › Announcements · 27 Dec 2025 · 0 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…
Second pass at: Robustness: the parameters worth deliberately varying Replied, post #30 · Analytics › Method validation · 3 Dec 2025 · 1 like 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…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one — one… Replied, post #7 · Compounds › Oral incretins · 27 Nov 2025 · 0 likes The SOUL trial: cardiovascular outcomes trial for oral semaglutide in people with type 2 diabetes and cardiovascular disease or chronic kidney disease. It demonstrates…
Pharmaceutical compounding rules, summarised from primary sources — a second dataset Replied, post #51 · Sourcing › Regulatory · 27 Nov 2025 · 6 likes Preclinical versus clinical: compounds with strong preclinical data can fail in clinical trials. Compounds with no human data are being used on theoretical grounds. The…
Availability by country, dated, with primary sources Replied, post #76 · Access › International · 25 Nov 2025 · 0 likes Insurance and coverage: coverage decisions are national. A compound approved in one country might not be covered by insurance in another. Checking both approval and…
[2026 update] What steady state means for the decision to escalate Replied, post #99 · Practice › Dosing & titration · 15 Nov 2025 · 16 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…
Absence of evidence and evidence of absence Replied, post #5 · Research Methods › Statistics · 11 Nov 2025 · 17 likes Relative risk and odds ratios: both compare the rate in one group to the rate in another. Relative risk is easier to understand. Odds ratios are standard in many…
Citation sweep results: how many references did not say what was claimed Replied, post #5 · Meta › Wiki maintenance · 10 Nov 2025 · 0 likes Picking up post #2: that is the part I would want checked first. Revision disputes: if you disagree with an edit a maintainer made, discussing it here invites…
What pooling buys you and what it destroys Replied, post #49 · Evidence › Meta-analyses · 23 Oct 2025 · 0 likes Number needed to treat from a meta-analysis: can be computed from the pooled estimate if the baseline risk is specified. More interpretable than pooled relative effects.
What happens after your first post: likes, trust levels, and why none of it matters much… Replied, post #102 · Start Here › Welcome · 22 Oct 2025 · 22 likes The moderation log is public. Every staff action is logged with the rule cited and the reasoning stated. If you get moderated, the explanation is there and it is worth…
Tracking that stops updating and then resumes Replied, post #30 · Sourcing › Logistics · 26 Sep 2025 · 13 likes Cold packs and temperature control: inclusion of cold packs at despatch is standard. Whether they maintain temperature through transit depends on journey duration and…
A 10 mg vial reconstituted three different ways, compared — the long version Replied, post #126 · Practice › Reconstitution · 16 Sep 2025 · 28 likes How much of the diluent volume the powder itself displaces: for a small peptide vial, the powder volume is negligible. For a larger vial or a kit with multiple…
Titles that describe the question, not the situation — what changed since Replied, post #18 · Start Here › How to Ask · 15 Sep 2025 · 13 likes post #17 answers the question as asked. The question underneath it is different. Disagreement-style questions: "I read this and it contradicts what I heard here, which…
Second pass at: How to ask a question when you cannot say why you are asking it Replied, post #15 · Start Here › How to Ask · 15 Sep 2025 · 10 likes This follows post #12 rather than contradicting it. For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add…
Aggregated purity results across four services, with caveats — a second dataset Replied, post #43 · Data & Tools › Datasets · 8 Sep 2025 · 3 likes Coming back to post #41, because the follow-up matters more than the original answer. Having read the exchange above, I think I was wrong earlier in this topic and I…
"Greater than or equal to 99%" as a specification rather than a result Replied, post #31 · Analytics › COA interpretation · 6 Sep 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…
Which panel is worth repeating and which is worth ignoring Replied, post #102 · Clinical › Bloodwork · 4 Sep 2025 · 17 likes HbA1c and glucose: HbA1c reflects average glucose over months; a spot glucose measurement reflects the moment. Trending glucose downward while HbA1c stays flat is a…
Coming back to: The SOUL trial and oral semaglutide cardiovascular outcomes Replied, post #28 · Compounds › Oral incretins · 16 Aug 2025 · 0 likes Oral versus injectable exposure: comparing a 14 mg oral dose with a 0.5 mg injectable dose is comparing apples to a different fruit. The oral bioavailability is low…
Coming back to: Semaglutide half-life: where the 165 to 184 hour figure comes from Replied, post #105 · Compounds › Semaglutide · 6 Aug 2025 · 0 likes post #104 answers the question as asked. The question underneath it is different. Gastric emptying delay is the mechanism behind most of the gastrointestinal side…
Second pass at: Why this subcategory is stricter about sourcing than most Replied, post #15 · Compounds › Secretagogues & GH axis · 27 Jul 2025 · 6 likes This follows post #12 rather than contradicting it. Evidence quality in the secretagogue literature is honestly weaker than in the incretin literature. Large randomised…
Canadian access and provincial variation — one year on Replied, post #2 · Regional › North America · 17 Jul 2025 · 14 likes Provincial formularies in Canada are published and are the correct source for coverage information. Coverage for weight management is less common than for diabetes.
Why a pen's dose steps are fixed and what that costs you — one year on Replied, post #20 · Devices › Pens & autoinjectors · 21 Jun 2025 · 21 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…
Follow-up: The decimal-point error, and the habit that catches it Replied, post #11 · Practice › Reconstitution · 13 Jun 2025 · 10 likes Worth separating two things that post #7 runs together. How much of the diluent volume the powder itself displaces: for a small peptide vial, the powder volume is…
[2026 update] An appeal that failed, and what I would do differently Replied, post #93 · Access › Insurance & coverage · 13 Jun 2025 · 29 likes Generic versus brand: most of these compounds do not have generic versions yet. Once they do, formulary coverage and pricing will shift.
Revisiting: GLP-1 receptor distribution: central and peripheral Replied, post #2 · Pharmacology › Receptor biology · 25 May 2025 · 5 likes Central versus peripheral action: GLP-1 agonism works through both central nervous system effects (appetite) and peripheral effects (gastric motility, insulin). The…
DXA precision and the least significant change for lean mass — the long version Replied, post #68 · Outcomes › Body composition · 20 May 2025 · 5 likes Maintenance phase: tracking body composition during maintenance (weight stable) is different from tracking during active loss. Changes are smaller and precision becomes…
Follow-up: History of disordered eating and why it changes the conversation Replied, post #7 · Clinical › Special populations · 10 May 2025 · 24 likes Pancreatitis history: the compounds can rarely trigger pancreatitis. A history of pancreatitis makes monitoring for recurrence more important during titration.
Second pass at: Reading a combination trial: attributing effect to components Replied, post #13 · Compounds › Cagrilintide & amylin analogues · 7 May 2025 · 26 likes post #12 is right about the mechanism and I think understates the practical bit. Reading the phase 2 paper: it establishes tolerability and efficacy in a selected…
Review: a draft on reconstitution arithmetic, with objections Replied, post #114 · Documentation › Doc review · 19 Apr 2025 · 10 likes Multilingual versions: if a maintained page should exist in another language, suggesting it here with your willingness to help translate can make it happen.
A report I filed that turned out to be wrong, and the correction Replied, post #12 · Sourcing › Vendor reports · 12 Apr 2025 · 23 likes Temporal patterns: if results from a supplier were good two years ago but have deteriorated recently, that is information. If they have been consistent over years, that…
[2026 update] Dose numbers across compounds are not on the same scale Replied, post #9 · Practice › Dosing & titration · 4 Apr 2025 · 0 likes Dose equivalence between different incretin analogues is a weak concept. The molecules differ in structure, half-life, receptor selectivity, and in what has been…
Retatrutide dose escalation in the published trials Replied, post #84 · Compounds › Retatrutide · 3 Apr 2025 · 27 likes Coming back to post #82, because the follow-up matters more than the original answer. Retatrutide is investigational. Anything obtained outside a trial is by definition…
Distinguishing a deletion sequence by mass alone — the long version Replied, post #12 · Analytics › Mass spectrometry · 1 Apr 2025 · 21 likes Quantitation by MS: most quantitation is done by LC-UV detection at 214 nm, not by MS, because extinction coefficients are better known. MS can quantify if an internal…
Counter-ion form: the field almost nobody reports — one year on Replied, post #136 · Analytics › COA interpretation · 28 Mar 2025 · 0 likes I read post #134 twice before replying, because I had assumed the opposite. Reading old certificates: if a certificate is dated years ago, the lot it describes might be…
Second pass at: Cross-border purchase within the EU: the actual rules Replied, post #96 · Access › International · 13 Mar 2025 · 2 likes Regulatory position dates: a regulatory position is only current as of when it was written. Rechecking is prudent, especially if you saw it months ago.
When to suspect the method rather than the sample Replied, post #95 · Analytics › Method validation · 10 Mar 2025 · 0 likes I read post #93 twice before replying, because I had assumed the opposite. Robustness: the method gives consistent results when minor parameters vary. Tested by…
Validating a method you did not develop — does this still hold? Replied, post #84 · Analytics › Method validation · 7 Mar 2025 · 0 likes post #83 is right about the mechanism and I think understates the practical bit. Robustness: the method gives consistent results when minor parameters vary. Tested by…
A 5 mg vial and a 0.25 mg dose: the arithmetic in full — what changed since Replied, post #16 · Practice › Reconstitution · 13 Feb 2025 · 9 likes A 10 mg vial reconstituted three different ways: 1 mL diluent gives 10 mg/mL, 2 mL gives 5 mg/mL, 4 mL gives roughly 2.5 mg/mL. The arithmetic is the same; the…
Random versus fixed effects: choosing rather than defaulting — a second dataset Replied, post #78 · Evidence › Meta-analyses · 8 Feb 2025 · 9 likes Sensitivity analysis: the authors re-run the meta-analysis excluding studies one at a time, or by quality, to see whether the pooled estimate changes. Robust results…
Scheduled maintenance and what will be unavailable Replied, post #37 · Meta › Announcements · 8 Feb 2025 · 4 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…
Protein density versus volume when you cannot eat much Replied, post #32 · Nutrition & Training › Protein & intake · 28 Jan 2025 · 0 likes Picking up post #29: that is the part I would want checked first. Liquid versus solid: protein in liquid form (shakes) is easier to consume in volume but might not be…
Criticising the method without criticising the authors Replied, post #28 · Evidence › Study critique · 1 Jan 2025 · 11 likes This follows post #25 rather than contradicting it. For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add…
What we do not know about retatrutide, listed explicitly Replied, post #33 · Compounds › Retatrutide · 26 Dec 2024 · 4 likes This follows post #30 rather than contradicting it. Retatrutide is investigational. Anything obtained outside a trial is by definition research-use-only material with…
Body image changing more slowly than the body Replied, post #125 · Wellbeing › Mental health · 24 Dec 2024 · 0 likes Identity and self-image: for some people, weight and body size are central to identity. Large change to body size can affect identity. This is not pathological; it is…
Second pass at: How to research a compound with no human data without deceiving yourself Replied, post #6 · Compounds › Other compounds · 20 Dec 2024 · 6 likes post #5 is right about the mechanism and I think understates the practical bit. How to research a compound with no human data: mechanistic plausibility is one input.…
About the Pricing category Replied, post #3 · Access › Pricing · 20 Dec 2024 · 2 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…
Body image changing more slowly than the body Replied, post #31 · Wellbeing › Mental health · 14 Dec 2024 · 0 likes post #30 answers the question as asked. The question underneath it is different. Substance use: if someone has a history of substance use, appetite suppression and…
Why "any advice?" is the least effective ending for a post Replied, post #71 · Start Here › How to Ask · 25 Nov 2024 · 31 likes post #70 answers the question as asked. The question underneath it is different. The specific question in the title is more useful than you might think. A title like "a…
Levothyroxine timing: a real interaction with a simple fix Replied, post #9 · Practice › Interactions · 19 Nov 2024 · 2 likes Vitamins: most vitamins have no significant interaction. Fat-soluble vitamins (A, D, E, K) might be affected by the slowing of fat absorption during weight loss, but…
Time to steady state after a dose increase Replied, post #145 · Pharmacology › Pharmacokinetics · 6 Nov 2024 · 0 likes Volume of distribution: the theoretical volume the drug distributes into. For albumin-binding compounds, volume is reduced compared to drugs that do not bind protein.…
Time to steady state after a dose increase Replied, post #69 · Pharmacology › Pharmacokinetics · 4 Nov 2024 · 1 like post #68 is right about the mechanism and I think understates the practical bit. Bioavailability: oral semaglutide has low bioavailability (roughly 1%) due to peptide…
Second pass at: A field-by-field walk through a certificate of analysis Replied, post #103 · Analytics › COA interpretation · 1 Nov 2024 · 13 likes Picking up post #100: that is the part I would want checked first. A certificate of analysis is a statement by its issuer that a defined test was performed on a defined…
How to ask for a dose change without antagonising anyone — what changed since Replied, post #15 · Clinical › Prescriber conversations · 29 Oct 2024 · 8 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…
Hypertension improvement and when medication needs revisiting — a second dataset Replied, post #6 · Clinical › Comorbidities · 8 Oct 2024 · 22 likes On post #2 — agreed on the reasoning, with one qualification. Chronic kidney disease: compounds in this class have renal benefit in people with kidney disease. The…
Splitting a vial for two laboratories: how to do it without ruining both — what changed… Replied, post #26 · Sourcing › Independent verification · 30 Aug 2024 · 20 likes Coming back to post #24, because the follow-up matters more than the original answer. When results are inconclusive: if a testing service reports "insufficient to…
Assessing a warm arrival: the decision process — one year on Replied, post #103 · Sourcing › Logistics · 1 Jun 2024 · 2 likes Documentation after arrival: photograph the parcel and its contents on arrival. If something later turns out wrong (damage, loss, wrong item) you have evidence of the…