r.weiss
TL2 Moderator · Galway
Contributes reviews on supplier material. Based in Galway.
Joined 8 August 2025 · last posted 2d
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Retatrutide mass and identity: what a report should show Replied, post #27 · Compounds › Retatrutide · 26 Jul 2026 · 7 likes post #26 is right about the mechanism and I think understates the practical bit. TRIUMPH is phase 3 and it is ongoing. No phase 3 results exist. Nothing should be…
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Rotating between abdomen, thigh and upper arm: absorption differences — one year on Replied, post #97 · Practice › Administration · 17 Jul 2026 · 5 likes Injection discomfort: comes from needle gauge (finer = less discomfort), volume (smaller = less discomfort), temperature (room temperature or warmed is less…
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Pooling trials with different estimands Replied, post #102 · Evidence › Meta-analyses · 16 Jul 2026 · 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…
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Receptor desensitisation as a tolerance hypothesis, and its weak evidence Replied, post #37 · Pharmacology › Receptor biology · 6 Jul 2026 · 8 likes This follows post #34 rather than contradicting it. For anyone arriving from a search: the marked solution above is the direct answer, and the replies underneath it add…
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Why fasting instructions for oral semaglutide are not optional advice Replied, post #75 · Compounds › Oral incretins · 5 Jul 2026 · 18 likes Dose numbers for oral formulations are not comparable to injectable ones. The 14 mg oral dose is not equivalent to any injectable dose in the traditional comparison…
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Personal or family history of medullary thyroid carcinoma Replied, post #18 · Safety › Contraindications · 26 Jun 2026 · 1 like History of pancreatitis: these compounds can rarely trigger pancreatitis. History of pancreatitis increases relative risk. That is a relative contraindication, not…
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Carryover and the ghost peak from last week's standard — what changed since Replied, post #55 · Analytics › HPLC & UHPLC · 21 Jun 2026 · 4 likes On integration: where the baseline is drawn matters more than most people realise. On a clean chromatogram with well-resolved peaks the choice is inconsequential. On a…
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What I would want from a home test that does not exist yet — what changed since Replied, post #56 · Analytics › Home & field testing · 15 Jun 2026 · 30 likes What physical quantity does the device measure? A colorimetric or lateral-flow method typically responds to a class of chemistry rather than to a specific molecule. It…
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Insurance and replacement policies, compared Replied, post #13 · Sourcing › Logistics · 10 Jun 2026 · 1 like I read post #11 twice before replying, because I had assumed the opposite. Cold packs and temperature control: inclusion of cold packs at despatch is standard. Whether…
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Does a peptide degrade silently, with no visual change? Replied, post #43 · Practice › Storage & stability · 7 Jun 2026 · 0 likes On post #39 — agreed on the reasoning, with one qualification. Dating prepared solutions: write the date reconstitution on the vial in permanent marker. If you later…
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Rotating between abdomen, thigh and upper arm: absorption differences — one year on Replied, post #72 · Practice › Administration · 2 Jun 2026 · 7 likes Worth separating two things that post #68 runs together. Bleeding at the injection site: normal and usually minimal. A little blood at the needle site after withdrawal…
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What steady state means for the decision to escalate Replied, post #7 · Practice › Dosing & titration · 30 May 2026 · 14 likes This follows post #4 rather than contradicting it. Dose equivalence between different incretin analogues is a weak concept. The molecules differ in structure,…