da.bakker

TL2 Moderator · Tours

Contributes reviews on supplier material. Based in Tours.

Joined 17 June 2025 · last posted 5d

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Prior authorisation: what the criteria usually require — a second dataset Replied, post #60 · Access › Insurance & coverage · 23 Jul 2026 · 11 likes This follows post #57 rather than contradicting it. Prior authorisation: pre-approval requirements and how to satisfy them. Most denials cite specific criteria.…
Tirzepatide storage and stability: what is published versus what is assumed Replied, post #12 · Compounds › Tirzepatide · 13 Jul 2026 · 14 likes SURMOUNT-1 reported weight reduction of a magnitude that was the largest for a pharmacological intervention at that time of publication. It also reported a clear dose…
Second pass at: Absence of evidence and evidence of absence Replied, post #43 · Research Methods › Statistics · 12 Jul 2026 · 32 likes post #42 answers the question as asked. The question underneath it is different. Number needed to treat: how many people need to be treated to prevent one bad outcome…
The anatomy of a question that gets answered within an hour Replied, post #100 · Start Here › How to Ask · 4 Jul 2026 · 0 likes Coming back to post #98, because the follow-up matters more than the original answer. Chromatogram questions: describe the method first. Column type, gradient,…
Prescription portability between countries Replied, post #86 · Access › International · 4 Jul 2026 · 3 likes Language barriers: if you need to communicate with a supplier, clinician, or regulator in a language not your first language, misunderstanding is possible. Clarify when…
Hair shedding at month three: mechanism and time course — the long version Replied, post #37 · Practice › Side effects · 29 Jun 2026 · 0 likes post #36 is right about the mechanism and I think understates the practical bit. Constipation: common, manageable, and frequently under-reported because it is not…
Second pass at: What a 2 ppm match establishes, and what it does not Replied, post #33 · Analytics › Mass spectrometry · 24 Jun 2026 · 1 like Picking up post #30: that is the part I would want checked first. Quantitation by MS: most quantitation is done by LC-UV detection at 214 nm, not by MS, because…
Reconstituting a multi-strength kit without mixing yourself up — what changed since Replied, post #30 · Practice › Reconstitution · 21 Jun 2026 · 19 likes Worth separating two things that post #26 runs together. 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…
What I would want from a home test that does not exist yet Replied, post #15 · Analytics › Home & field testing · 20 Jun 2026 · 2 likes This follows post #12 rather than contradicting it. Colorimetric tests: colour intensity correlates with concentration, but the relationship is non-linear at extremes…
[2026 update] Does a peptide degrade silently, with no visual change? Replied, post #75 · Practice › Storage & stability · 18 Jun 2026 · 14 likes Published stability data applies specifically to the formulation studied, under the specific conditions stated. It does not automatically transfer to something…
Reading a home test result without over-claiming Replied, post #75 · Analytics › Home & field testing · 11 Jun 2026 · 3 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…
Angle of injection and whether 90 degrees is always right — the long version Replied, post #8 · Practice › Administration · 20 May 2026 · 1 like Bleeding at the injection site: normal and usually minimal. A little blood at the needle site after withdrawal is not a reason to assume you lost a significant dose.…