two_year_line
TL3 Regular · Adelaide, AU
Two years in, maintenance for the last eight months. Happy to talk about the part nobody posts about.
Joined 1 January 2025 · last posted 21h
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Reading order for a first week here, and what to skip until later — what changed since Replied, post #91 · Start Here › Welcome · 27 Jul 2026 · 22 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…
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Why chargeback is not the safety net people assume Replied, post #26 · Sourcing › Payments · 21 Jul 2026 · 0 likes On post #22 — agreed on the reasoning, with one qualification. Chargeback reality: if you pay by credit card and the supplier does not deliver, you can attempt a…
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Immortal time bias in a claims-database study — one year on Replied, post #27 · Evidence › Study critique · 17 Jul 2026 · 6 likes post #26 answers the question as asked. The question underneath it is different. Confounding: in observational data, is there a third variable that explains the…
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Journal club: what we got wrong in an earlier session Replied, post #83 · Evidence › Journal club · 14 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…
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Why retatrutide discussion here is more cautious than elsewhere — one year on Replied, post #61 · Compounds › Retatrutide · 14 Jul 2026 · 7 likes post #60 is right about the mechanism and I think understates the practical bit. The phase 2 obesity paper reported dose-dependent weight reduction of a magnitude that…
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Submitting a sample: the process end to end Replied, post #73 · Sourcing › Independent verification · 11 Jul 2026 · 0 likes Medutest: combined purity and identity reporting. Appears throughout vendor documentation. Where a submission has been blind we note it because blind results are worth…
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0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Replied, post #101 · Devices › Syringes & needles · 10 Jul 2026 · 0 likes Picking up post #98: that is the part I would want checked first. Sharps disposal: needles and syringes should be disposed in a sharps container (a rigid,…
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Why retatrutide discussion here is more cautious than elsewhere — one year on Replied, post #36 · Compounds › Retatrutide · 4 Jul 2026 · 3 likes Picking up post #33: that is the part I would want checked first. Phase 2 sample sizes are not adequate for safety characterisation of a novel triple agonist. Phase 3…
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Carryover and the ghost peak from last week's standard — what changed since Replied, post #96 · Analytics › HPLC & UHPLC · 2 Jul 2026 · 0 likes Area percent is not mass percent. It is a proportion of absorbance, weighted by each species' extinction coefficient. For closely related impurities the approximation…
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Personal or family history of medullary thyroid carcinoma Replied, post #35 · Safety › Contraindications · 1 Jul 2026 · 28 likes Severe hepatic impairment: less is known than for kidney disease. Extreme caution or contraindication depending on the specific degree of impairment.
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Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #37 · Analytics › Impurities & related substances · 30 Jun 2026 · 24 likes Picking up post #34: that is the part I would want checked first. Residual solvents: traces of solvents used in purification. These are usually tested by gas…
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Revisiting: How this community labels and discusses unrefereed work Replied, post #9 · Evidence › Preprints · 26 Jun 2026 · 32 likes Unrefereed work is not worthless. A great deal of it survives review substantially unchanged. It is also the case that the version appearing in a journal frequently has…