me.eriksen

TL2 Moderator · Faro

Contributes reviews on supplier material. Based in Faro.

Joined 15 April 2025 · last posted 1d

71 posts, newest first. Showing up to 150.

[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #128 · Sourcing › Independent verification · 27 Jul 2026 · 0 likes Cost and turnaround: different services have different pricing and turnaround times. Janoshik's turnaround is weeks by mail; VendorInvestigate documentation review is…
Follow-up: How compounding permissions changed when supply normalised Replied, post #68 · Sourcing › Regulatory · 25 Jul 2026 · 28 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…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #99 · Sourcing › Independent verification · 17 Jul 2026 · 0 likes On post #95 — agreed on the reasoning, with one qualification. Repeat testing: if you want to verify the same lot a second time, testing with a different service…
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #41 · Evidence › Journal club · 9 Jul 2026 · 2 likes FLOW (N Engl J Med 2024): Semaglutide renal outcomes in type 2 diabetes and chronic kidney disease. Stopped early for efficacy. Component-by-component analysis is…
Does a peptide degrade silently, with no visual change? Replied, post #60 · Practice › Storage & stability · 1 Jul 2026 · 0 likes Worth separating two things that post #56 runs together. I want to gently push back on the reply above about storage extrapolation. The advice is sound and the…
Coming back to: Specificity, linearity, accuracy, precision, range, robustness — with… Replied, post #65 · Analytics › Method validation · 24 Jun 2026 · 13 likes Linearity: the detector response is proportional to compound concentration across the working range. Demonstrated by running standards at multiple concentrations and…
Follow-up: Search filters: what is missing Replied, post #128 · Meta › Site feedback · 13 Jun 2026 · 3 likes Feature requests: if the site would work better with a feature it does not have (better search, different filtering, new section) suggest it here with the reasoning.
How shortages have affected compounding permissions — does this still hold? Replied, post #11 · Access › Shortages · 9 Jun 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…
Follow-up: The most useful thing you learned here that was not the answer you came for Replied, post #3 · Lounge › Off topic · 5 Jun 2026 · 3 likes post #2 is right about the mechanism and I think understates the practical bit. Adjacent and interesting: you might post something about nutrition, bioavailability from…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #28 · Practice › Storage & stability · 3 Jun 2026 · 1 like On post #24 — agreed on the reasoning, with one qualification. Freeze-thaw: some peptide solutions tolerate freezing poorly because ice crystals damage protein…
A certificate whose chromatogram axes do not match its stated method — one year on Replied, post #6 · Sourcing › Red flags · 2 Jun 2026 · 11 likes post #5 is right about the mechanism and I think understates the practical bit. Pricing patterns: unusually low prices for what are otherwise consistent with market…
Revisiting: The report format the maintainers ask for, and why each field is there Replied, post #75 · Sourcing › Vendor reports · 30 May 2026 · 31 likes Structured report format: compound, lot, independent testing service, method as reported, result, and the certificate figure for the same lot. One lot is one lot. It…
Run-in periods and the population they select Replied, post #125 · Evidence › Trials · 27 May 2026 · 8 likes On post #121 — agreed on the reasoning, with one qualification. Open-label design: unblinded trials admit expectation effects. For weight-loss trials where one arm…
Micro-titration: a disputed topic, argued properly — one year on Replied, post #38 · Practice › Dosing & titration · 19 May 2026 · 6 likes Micro-titration: the concept of increments smaller than the labelled steps. It has no evidence base from trials but is described by some people. The downside is that…
I have no scientific background — can I still follow the analytics categories? Replied, post #2 · Start Here › Welcome · 11 May 2026 · 0 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…
Reconstituting a multi-strength kit without mixing yourself up — what changed since Replied, post #11 · Practice › Reconstitution · 4 May 2026 · 5 likes On post #7 — agreed on the reasoning, with one qualification. Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly…
Blind submission and why it changes minds — the long version Replied, post #35 · Sourcing › Independent verification · 22 Apr 2026 · 1 like Worth separating two things that post #31 runs together. Repeat testing: if you want to verify the same lot a second time, testing with a different service strengthens…
[2026 update] Thyroid function tests during substantial weight change Replied, post #36 · Clinical › Bloodwork · 11 Apr 2026 · 9 likes Coming back to post #34, because the follow-up matters more than the original answer. A single value outside interval: usually uninformative on a single draw. What…
Type 2 diabetes and the largest part of the evidence base Replied, post #60 · Clinical › Comorbidities · 8 Apr 2026 · 1 like 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 single out-of-range value on an otherwise normal panel Replied, post #32 · Clinical › Bloodwork · 8 Apr 2026 · 0 likes Renal function markers: eGFR is estimated, not measured. It depends on creatinine, age, and weight. A small change in creatinine might not mean a real change in kidney…
Fibre intake when total intake falls, and the constipation link — one year on Replied, post #3 · Nutrition & Training › Protein & intake · 28 Mar 2026 · 8 likes This follows post #2 rather than contradicting it. Liquid versus solid: protein in liquid form (shakes) is easier to consume in volume but might not be as satiating as…
Measurement error in home scales, with a worked standard deviation — the long version Replied, post #62 · Research Methods › Statistics · 26 Mar 2026 · 1 like On post #58 — agreed on the reasoning, with one qualification. Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what…
Coming back to: Time to steady state after a dose increase Replied, post #20 · Pharmacology › Pharmacokinetics · 25 Mar 2026 · 20 likes On post #16 — agreed on the reasoning, with one qualification. Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what…
Coming back to: Washout: how long is long enough, and for what purpose Replied, post #80 · Pharmacology › Pharmacokinetics · 23 Mar 2026 · 0 likes Accumulation at steady state: with a week-long half-life, steady-state concentration is reached around 4 to 5 half-lives (about 4 to 5 weeks). Before that,…
[2026 update] Distinguishing expected GI effects from something that needs urgent… Replied, post #14 · Practice › Side effects · 22 Mar 2026 · 16 likes This follows post #11 rather than contradicting it. Fatigue: commonly reported, frequently multifactorial. It is worth asking whether other factors have changed (sleep,…
Second pass at: Metformin co-administration and additive GI effects Replied, post #66 · Practice › Interactions · 14 Mar 2026 · 0 likes Food interactions: most interactions are absorption interactions. Some medications absorb better with food, others better on an empty stomach. With an incretin agonist…
Coming back to: Training through a dose escalation week Replied, post #48 · Nutrition & Training › Resistance training · 10 Mar 2026 · 26 likes Maintenance is the goal: preserving lean mass and strength during weight loss is the goal of resistance training in this context, not building new muscle. That goal is…
Second pass at: What pooling buys you and what it destroys Replied, post #23 · Evidence › Meta-analyses · 2 Mar 2026 · 12 likes Subgroup analysis: sometimes a meta-analysis reports separate pooled estimates for different subgroups (e.g., by baseline body mass index or by trial duration). Be…
The lowest dose that does anything: is that a real question? Replied, post #11 · Practice › Dosing & titration · 1 Mar 2026 · 21 likes On post #7 — agreed on the reasoning, with one qualification. The four-week escalation interval is a convention from the pivotal trials, not a pharmacological constant.…
[2026 update] Reading a supplementary appendix and finding the interesting part Replied, post #40 · Evidence › Trials · 18 Feb 2026 · 16 likes Surrogate endpoints: an endpoint that is not the outcome that matters but is measured as a stand-in. HbA1c is a surrogate for long-term glucose control and the…
The 2.5 mg starting dose is not a therapeutic dose — why that matters Replied, post #10 · Compounds › Tirzepatide · 8 Feb 2026 · 0 likes post #9 is right about the mechanism and I think understates the practical bit. Half-life difference: tirzepatide is about 5 days versus semaglutide's week-long.…
Second pass at: Which categories are strict and which are relaxed, honestly Replied, post #7 · Start Here › Welcome · 29 Jan 2026 · 29 likes The compound and evidence pages are updated regularly and they are worth reading when you are new. They answer the meta questions like "do we have data on this" and…
The nausea timeline across the first four weeks, with a tabulated log — what changed since Replied, post #27 · Practice › Side effects · 16 Jan 2026 · 13 likes Picking up post #24: that is the part I would want checked first. Pancreatitis: a rare but serious event with a specific presentation (epigastric pain, back pain,…
Vomiting: when it is expected and when it is a reason to stop Replied, post #13 · Practice › Side effects · 26 Dec 2025 · 25 likes Pancreatitis: a rare but serious event with a specific presentation (epigastric pain, back pain, elevated lipase). If this constellation of findings appears, stopping…
Airline travel with a temperature-sensitive injectable Replied, post #24 · Devices › Cold chain · 21 Dec 2025 · 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…
Second pass at: Programming during a large energy deficit Replied, post #77 · Nutrition & Training › Resistance training · 12 Nov 2025 · 0 likes On post #73 — agreed on the reasoning, with one qualification. Deload weeks: periodic weeks (every 4 to 8 weeks) with reduced volume and intensity can help with…
Documentation that appears only after payment Replied, post #66 · Sourcing › Red flags · 3 Nov 2025 · 0 likes Exaggerated claims without documentation: every compound has limits. No peptide is "100% pure" because purity is measured to finite precision. A supplier claiming…
Pooling trials with different estimands — what changed since Replied, post #33 · Evidence › Meta-analyses · 5 Oct 2025 · 1 like Pooled estimates and heterogeneity: when trials differ in population, duration, or comparator, a pooled estimate answers a question that no individual trial asked. High…
Compounds this community declines to help with, and why Replied, post #57 · Compounds › Other compounds · 4 Oct 2025 · 29 likes post #56 answers the question as asked. The question underneath it is different. Reading a supplier's product description as a marketing document: that is exactly what…
A preprint whose numbers changed substantially at publication Replied, post #77 · Evidence › Preprints · 3 Oct 2025 · 0 likes Picking up post #74: that is the part I would want checked first. Do not build anything on a preprint that you would mind rebuilding: if the preprint later changes…
The nausea timeline across the first four weeks, with a tabulated log Replied, post #93 · Practice › Side effects · 25 Sep 2025 · 31 likes post #92 is right about the mechanism and I think understates the practical bit. Pancreatitis: a rare but serious event with a specific presentation (epigastric pain,…
A request that was declined, and the reasoning — a second dataset Replied, post #48 · Documentation › Wiki requests · 10 Aug 2025 · 20 likes Flag a page that has drifted: if you notice a maintained page has information that is outdated (dates that have passed, regulatory changes, new evidence) post a flag so…
Hepatic impairment and the absence of data Replied, post #7 · Clinical › Special populations · 5 Aug 2025 · 0 likes Gastroparesis: pre-existing severe delayed gastric emptying can worsen with compounds that slow it further. Discussion with a clinician is prudent if this history exists.
Canadian access and provincial variation — one year on Replied, post #18 · Regional › North America · 22 Jul 2025 · 2 likes Canada: Health Canada licenses compounds. Prescribing is provincial. Compounds are prescription-only. Coverage varies between public and private insurance.
Second pass at: Triple agonism: additive, synergistic, or neither? Replied, post #83 · Compounds › Retatrutide · 22 Jul 2025 · 8 likes This follows post #80 rather than contradicting it. The phase 2 obesity paper reported dose-dependent weight reduction of a magnitude that attracted attention. It also…
Why "any advice?" is the least effective ending for a post — the long version Replied, post #27 · Start Here › How to Ask · 20 Jul 2025 · 11 likes This follows post #24 rather than contradicting it. Disagreement-style questions: "I read this and it contradicts what I heard here, which is right?" is answerable. "Is…
Retatrutide phase 2 in type 2 diabetes: the Lancet paper Replied, post #14 · Compounds › Retatrutide · 29 Jun 2025 · 0 likes What we do not know about retatrutide, listed explicitly: long-term safety, real-world response rates, the dose response in diverse populations, whether the heart-rate…
Counter-ion content and its effect on measured mass Replied, post #69 · Analytics › Mass spectrometry · 19 Jun 2025 · 7 likes Mass accuracy is expressed in parts per million. It is the difference between observed and theoretical mass divided by theoretical mass, multiplied by a million. A…
Insulin combinations and hypoglycaemia risk Replied, post #12 · Practice › Interactions · 18 Jun 2025 · 3 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.
Follow-up: Tracking intake honestly when appetite is absent Replied, post #36 · Nutrition & Training › Protein & intake · 7 Jun 2025 · 0 likes I read post #34 twice before replying, because I had assumed the opposite. Liquid versus solid: protein in liquid form (shakes) is easier to consume in volume but might…
Follow-up: What other technical communities get right that we do not Replied, post #121 · Lounge › Off topic · 5 Jun 2025 · 10 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: How much fluid is actually needed, and how you would know Replied, post #16 · Nutrition & Training › Hydration & electrolytes · 24 May 2025 · 29 likes Magnesium: deficiency during weight loss is common and symptoms (fatigue, muscle cramps) are nonspecific. Supplementation is inexpensive and low-risk if needed.
Documenting a supplier's response to a discrepancy — does this still hold? Replied, post #40 · Sourcing › Vendor reports · 31 Mar 2025 · 6 likes Disputed records: when a result disagreed and was not explained, the record says disputed and stays that way. We do not remove inconvenient history; we document it.
Validating a method you did not develop — does this still hold? Replied, post #120 · Analytics › Method validation · 15 Mar 2025 · 4 likes Picking up post #117: that is the part I would want checked first. Range: the concentration range over which the method has been validated. Going outside the validated…
Charge states for a 4 kDa peptide, worked through Replied, post #19 · Analytics › Mass spectrometry · 4 Mar 2025 · 28 likes On post #15 — agreed on the reasoning, with one qualification. Having read the exchange above, I think I was wrong earlier in this topic and I want to say so plainly…
Scheduled maintenance and what will be unavailable Replied, post #59 · Meta › Announcements · 2 Mar 2025 · 0 likes post #58 answers the question as asked. The question underneath it is different. Questions welcomed: if an announcement is unclear, asking for clarification is welcome.…
Requesting a page: what makes a good request Replied, post #2 · Documentation › Wiki requests · 16 Feb 2025 · 11 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.
Coming back to: Official shortage notices and what they authorise Replied, post #12 · Access › Shortages · 11 Feb 2025 · 1 like Supply interruptions: official shortage notices are published by regulatory agencies. That is the correct primary source rather than pharmacy rumors or forum discussion.
Why mass spectrometry cannot tell you about an epimer Replied, post #48 · Analytics › Mass spectrometry · 5 Feb 2025 · 27 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…
[2026 update] Lipid changes during rapid weight loss: the expected trajectory Replied, post #35 · Clinical › Bloodwork · 28 Jan 2025 · 2 likes Liver enzymes: elevation does not specify cause. ALT and AST can rise from many things. Bilirubin helps narrow down the cause. Multiple markers together are more…
Anxiety in the first weeks: drug, situation, or both Replied, post #41 · Wellbeing › Mental health · 22 Jan 2025 · 0 likes Sleep and mental health: these compounds can affect sleep for some people. Sleep deprivation worsens mood and anxiety. Addressing sleep separately from mood matters.
Reading a supplementary appendix and finding the interesting part Replied, post #68 · Evidence › Trials · 15 Jan 2025 · 1 like Confounding in observational data: a third variable can explain an apparent association. In a randomised trial, randomisation balances unknown confounders. In…
How compounding permissions changed when supply normalised Replied, post #4 · Sourcing › Regulatory · 29 Dec 2024 · 21 likes Worth separating two things that the opening post runs together. Regulatory positions change: a compound's status today might differ from its status a year from now.…
Research-use-only status: what it means legally and practically — a second dataset Replied, post #37 · Compounds › Other compounds · 10 Dec 2024 · 2 likes Picking up post #34: that is the part I would want checked first. When "no data" is the complete and final answer: if there is no published human data on a compound,…
What a seizure notice actually says Replied, post #14 · Sourcing › Logistics · 8 Dec 2024 · 0 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.…
Fixed versus detachable needles: the trade-offs Replied, post #27 · Devices › Syringes & needles · 1 Dec 2024 · 5 likes post #26 answers the question as asked. The question underneath it is different. Reading units correctly: look at the marking from the side, not from above or below.…
Over-dilution: when your dose falls below one readable graduation Replied, post #8 · Practice › Reconstitution · 21 Nov 2024 · 30 likes On post #4 — agreed on the reasoning, with one qualification. Reconstituting a multi-strength kit: if a kit contains 5 mg, 10 mg, 15 mg vials and you are reconstituting…
Revisiting: Melanocortin agonists: mechanism and the documented adverse profile Replied, post #45 · Compounds › Other compounds · 12 Oct 2024 · 13 likes post #44 is right about the mechanism and I think understates the practical bit. Why catalogue breadth is not evidence of anything: a supplier listing 500 compounds…
Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #53 · Evidence › Journal club · 24 Sep 2024 · 14 likes TRIUMPH (ongoing): Retatrutide phase 3. No results yet. Nothing should be attributed to it because it has not finished. When it does, this discussion will return to it.
Correlation in a self-tracked dataset: what it can support Replied, post #78 · Research Methods › Statistics · 23 Aug 2024 · 8 likes Coming back to post #76, because the follow-up matters more than the original answer. Absence of evidence and evidence of absence: if a study is small and finds no…
Assessing a warm arrival: the decision process — one year on Replied, post #93 · Sourcing › Logistics · 1 Jun 2024 · 14 likes Picking up post #90: that is the part I would want checked first. Import restrictions by jurisdiction: what is legal to import for personal use varies enormously by…