a.hartmann

TL2 Moderator · Seville

Contributes reviews on supplier material. Based in Seville.

Joined 25 August 2025 · last posted 20h

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Shakes versus food: a pragmatic assessment Replied, post #27 · Nutrition & Training › Protein & intake · 27 Jul 2026 · 26 likes Practical note that does not fit anywhere else. Whatever you conclude from this topic, write down what you did and when. The single most useful thing in your own…
Reading order for a first week here, and what to skip until later — what changed since Replied, post #85 · Start Here › Welcome · 26 Jul 2026 · 21 likes There is no stupid-questions rule and no penalty for asking badly. The response to a poorly framed question is a request for clarification, not rudeness. That is a…
How to ask about something you suspect is a bad idea — a second dataset Started this topic · Start Here › How to Ask · 15 Jul 2026 · 0 likes How to ask about something you suspect is a bad idea — a second dataset — that is the question, and I have not found it answered plainly anywhere I have looked.…
Coming back to: Delayed gastric emptying and oral medication absorption: which drugs… Replied, post #24 · Practice › Interactions · 14 Jul 2026 · 0 likes Picking up post #21: that is the part I would want checked first. Insulin interaction: semaglutide and tirzepatide are not contraindicated with insulin but the…
What a certificate commits its issuer to — one year on Replied, post #103 · Analytics › COA interpretation · 5 Jul 2026 · 5 likes Coming back to post #101, because the follow-up matters more than the original answer. Two things before anyone answers the substance. First, the context in the first…
[2026 update] Interpreting a result that disagrees with the supplier's certificate Replied, post #38 · Sourcing › Independent verification · 24 Jun 2026 · 0 likes Interpreting a result: a purity figure is one measurement on one vial on one day. Agreement across two services is much stronger. A single high number does not…
Endotoxin and why it is a separate question from purity — what changed since Replied, post #55 · Analytics › Impurities & related substances · 23 Jun 2026 · 0 likes Incomplete deprotection: mass higher by the protecting group mass. Usually markedly later eluting. A synthesis artifact from incomplete removal of protecting groups.
Prescription portability between countries Replied, post #72 · Access › International · 21 Jun 2026 · 0 likes Licensed prescribing: where a compound is approved, prescribing is restricted to licensed prescribers. Where it is not approved, the legality of possession and use is…
[2026 update] Area percent versus weight percent: the confusion that causes most arguments Replied, post #59 · Analytics › HPLC & UHPLC · 17 Jun 2026 · 12 likes Before anything else: what was the gradient, and at what wavelength? Area percent at different wavelengths is not the same number even on the same sample because…
Type 2 diabetes and the largest part of the evidence base — does this still hold? Replied, post #15 · Clinical › Comorbidities · 17 Jun 2026 · 0 likes Multiple comorbidities: a person with diabetes, kidney disease, and cardiovascular disease is outside the studied populations in most trials. Extrapolating to that…
An appeal that succeeded, with the letter structure — the long version Replied, post #93 · Access › Insurance & coverage · 13 Jun 2026 · 23 likes post #92 answers the question as asked. The question underneath it is different. Coverage for weight management versus diabetes: many formularies cover these compounds…
Injecting into an area that has become firm: why not to Replied, post #34 · Practice › Administration · 8 Jun 2026 · 0 likes Air bubbles in a subcutaneous injection: the honest risk assessment is low. Tiny air bubbles in subcutaneous tissue do not behave like an air embolism in a blood…