n.boateng

TL2 Moderator · Angers

Contributes reviews on supplier material. Based in Angers.

Joined 14 December 2024 · last posted 6d

79 posts, newest first. Showing up to 150.

Seven-day rolling means and why weekly readings mislead Replied, post #85 · Outcomes › Progress reports · 22 Jul 2026 · 12 likes Coming back to post #83, because the follow-up matters more than the original answer. Medication changes: escalating dose, or adding or removing other medications, can…
Spreadsheets: an appreciation — what changed since Replied, post #99 · Lounge › Off topic · 13 Jul 2026 · 1 like Newer drugs and mechanisms: when a new drug launches or a new mechanism is discovered, the Lounge is a place to discuss the news and speculate before hard data exists.
How to ask a question when you cannot say why you are asking it Replied, post #35 · Start Here › How to Ask · 9 Jul 2026 · 1 like Coming back to post #33, because the follow-up matters more than the original answer. Asking a follow-up: new topic or reply in the old one? If the answer depends on…
Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Replied, post #58 · Evidence › Journal club · 5 Jul 2026 · 0 likes Picking up post #55: that is the part I would want checked first. SURPASS-2 (N Engl J Med 2021): Direct comparison of tirzepatide with semaglutide 1.0 mg. The 1.0 mg…
Pages past their review date, listed — does this still hold? Replied, post #29 · Meta › Wiki maintenance · 28 Jun 2026 · 3 likes post #28 is right about the mechanism and I think understates the practical bit. I disagree with the reply above, and I think the disagreement is substantive rather…
Rewriting my first post: a before-and-after, with commentary — what changed since Replied, post #11 · Start Here › How to Ask · 28 Jun 2026 · 14 likes Coming back to post #9, because the follow-up matters more than the original answer. Two things before anyone answers the substance. First, the context in the first…
Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Replied, post #39 · Evidence › Journal club · 16 Jun 2026 · 12 likes SELECT (N Engl J Med 2023): Semaglutide cardiovascular outcomes without diabetes. The first outcome trial in people without diabetes, which decoupled the cardiovascular…
[2026 update] A vial that will not fully dissolve: what to check and in what order Replied, post #103 · Practice › Reconstitution · 12 Jun 2026 · 4 likes 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 "add 2 mL of diluent so the final volume is approximately 2…
Revisiting: The best-written scientific paper you have read Replied, post #24 · Lounge › Off topic · 10 Jun 2026 · 14 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…
Revisiting: Mean kinetic temperature explained without the mathematics Replied, post #42 · Practice › Storage & stability · 1 Jun 2026 · 0 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.
What published stability data actually covers, and what it does not Replied, post #3 · Practice › Storage & stability · 23 May 2026 · 12 likes post #2 answers the question as asked. The question underneath it is different. Published stability data applies specifically to the formulation studied, under the…
Reading a trial's population section before its results Replied, post #25 · Evidence › Trials · 16 May 2026 · 7 likes Open-label design: unblinded trials admit expectation effects. For weight-loss trials where one arm loses substantial weight and the other does not, complete blinding…
Foaming during reconstitution and whether it matters — the long version Replied, post #118 · Practice › Reconstitution · 30 Apr 2026 · 10 likes This follows post #115 rather than contradicting it. The decimal-point error: computing 5 mg / 2 mL as 0.25 mg/mL instead of 2.5 mg/mL is the most common arithmetic…
Second pass at: What a 2 ppm match establishes, and what it does not Replied, post #8 · Analytics › Mass spectrometry · 29 Apr 2026 · 10 likes Calibration matters: a high-resolution instrument out of calibration can report mass with ppm error large enough to be uninformative. Check when the instrument was last…
Second pass at: Temperature logging at home: what is worth the effort Replied, post #6 · Practice › Storage & stability · 26 Apr 2026 · 22 likes On post #2 — agreed on the reasoning, with one qualification. Dating prepared solutions: write the date reconstitution on the vial in permanent marker. If you later…
Converting between mg/mL and units per dose, both directions — the long version Replied, post #16 · Practice › Reconstitution · 18 Apr 2026 · 1 like Worth separating two things that post #12 runs together. Arithmetic step by step: a 5 mg vial with 2 mL of diluent gives (5 mg) / (2 mL) = 2.5 mg/mL. On a U-100 syringe…
List price versus negotiated price versus what you pay Replied, post #113 · Access › Pricing · 17 Apr 2026 · 1 like Pharmacy acquisition cost: a pharmacy pays less than the patient pays, even at insurance rates. That margin is where the pharmacy's costs and profit live.
List price versus negotiated price versus what you pay Replied, post #95 · Access › Pricing · 16 Apr 2026 · 3 likes Discount programmes and coupons: manufacturers often offer coupons that reduce out-of-pocket costs if insurance is not covering or is covering at a high copay. These…
What "marked as solution" means and who gets to mark it — does this still hold? Replied, post #61 · Start Here › Welcome · 3 Apr 2026 · 12 likes Welcome. The orientation materials are pinned at the top of this category and they take about an hour. They answer most of the questions a new member has and they save…
Restarting after a long gap: what the labelling implies — the long version Replied, post #7 · Practice › Dosing & titration · 14 Mar 2026 · 0 likes The arithmetic of an intermediate dose: if the label says 1.0 mg and 2.0 mg, a dose strictly between them is off-label by definition. Some people compute it anyway. The…
Introducing myself: pharmacist, sceptic, reluctant participant — one year on Replied, post #37 · Lounge › Introductions · 11 Mar 2026 · 0 likes Coming back to post #35, because the follow-up matters more than the original answer. No spam: introductions are not a place to advertise commercial products or…
Stability of BPC-157 in solution: what has been measured — one year on Replied, post #19 · Compounds › Repair & healing peptides · 8 Mar 2026 · 20 likes For anyone arriving from search engines: this subcategory discusses published preclinical work and the absence of published clinical work. It does not endorse or…
Follow-up: Bug report: the reconstitution calculator and a rounding edge case Replied, post #61 · Data & Tools › Calculators · 2 Mar 2026 · 0 likes post #60 answers the question as asked. The question underneath it is different. Units: all calculators explicitly require units to be stated. This prevents the…
Manufacturer assistance programmes and their eligibility rules Replied, post #8 · Access › Pricing · 28 Feb 2026 · 0 likes International pricing: the same compound costs very different amounts in different countries because healthcare systems and regulatory frameworks differ. Generally, US…
Pinch or no pinch, and how needle length changes the answer — the long version Replied, post #14 · Practice › Administration · 30 Jan 2026 · 30 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…
Waist circumference technique and its repeatability Replied, post #38 · Outcomes › Progress reports · 13 Jan 2026 · 8 likes Medication changes: escalating dose, or adding or removing other medications, can affect the rate of weight loss. Documenting medication changes alongside weight makes…
Pen mechanics when the cartridge is nearly empty — does this still hold? Replied, post #41 · Devices › Pens & autoinjectors · 9 Jan 2026 · 3 likes Dose counters: pens show the remaining number of doses. When the counter reaches zero, the pen is empty and cannot deliver more. Noting the counter before injection…
Aggregates and why a purity assay may miss them entirely Replied, post #51 · Analytics › Impurities & related substances · 5 Jan 2026 · 12 likes Dimer and higher-order multimers: two or more peptide molecules bonded together. They appear at double the mass and higher. They may or may not separate from the…
Guidelines revision: what changed and why — one year on Replied, post #53 · Meta › Announcements · 1 Jan 2026 · 12 likes I read post #51 twice before replying, because I had assumed the opposite. Scheduled maintenance: if the site is going offline for maintenance, advance notice will be…
Second pass at: What "verified" means on our vendor pages, stated narrowly Replied, post #50 · Sourcing › Vendor reports · 26 Dec 2025 · 3 likes Date the report: when the analysis was done matters. Material can degrade in storage. A report from two years ago is still useful but is not evidence about the current…
Personal import allowances, compared Replied, post #9 · Access › International · 21 Dec 2025 · 3 likes Compounding in different countries: some countries allow pharmacy compounding under defined conditions; others do not. The rules are jurisdiction-specific and change.
Reconstitution volumes that produce round numbers, tabulated Replied, post #7 · Practice › Reconstitution · 11 Dec 2025 · 0 likes 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 "add 2 mL of diluent so the final volume is approximately 2…
Absence of evidence and evidence of absence Replied, post #7 · Research Methods › Statistics · 29 Nov 2025 · 0 likes Coming back to post #5, because the follow-up matters more than the original answer. Regression to the mean: if you select people with extreme values (very high or very…
Why an oral GLP-1 agonist is a formulation achievement more than a chemistry one — one… Replied, post #5 · Compounds › Oral incretins · 27 Oct 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…
Payment mechanics and the recovery options that do not exist Replied, post #70 · Sourcing › Payments · 22 Oct 2025 · 0 likes post #69 answers the question as asked. The question underneath it is different. Fraud and scams: if a supplier demands payment upfront with no recourse if delivery…
About the North America category Replied, post #5 · Regional › North America · 10 Oct 2025 · 3 likes Provincial formularies in Canada are published and are the correct source for coverage information. Coverage for weight management is less common than for diabetes.
A parcel that arrived warm: a decision process, not a verdict Replied, post #45 · Practice › Storage & stability · 19 Sep 2025 · 0 likes Beyond-use dating: the date after which a prepared solution should not be used. It is an estimate based on how fast the solution degrades under stated storage, not on…
Request: show the solution author in the topic list Replied, post #3 · Meta › Feature requests · 14 Sep 2025 · 24 likes Effort estimation: some features are trivial to implement; others are substantial work. Staff will estimate effort when assessing whether a feature is feasible.
Aggregated purity results across four services, with caveats — a second dataset Replied, post #45 · Data & Tools › Datasets · 8 Sep 2025 · 17 likes Reproducibility: if sharing data, include enough context (compound, dose, timeframe, method) that someone reading it understands what it represents.
Second pass at: How to ask a question when you cannot say why you are asking it Replied, post #13 · Start Here › How to Ask · 8 Sep 2025 · 0 likes Lab result questions: state the result, the reference interval, and what else is on the same panel. A single flag on a single draw is usually uninformative without…
Journal club: STEP-HFpEF and symptom endpoints Replied, post #13 · Evidence › Journal club · 4 Sep 2025 · 13 likes PIONEER 6 (N Engl J Med 2019): Cardiovascular safety trial for oral semaglutide, not efficacy. Non-inferiority for safety was met. The trial was not designed to…
The nausea timeline across the first four weeks, with a tabulated log Replied, post #20 · Practice › Side effects · 27 Aug 2025 · 0 likes Nausea: the most common side effect and the most dose- and titration-dependent one. It is usually most prominent in the first 24 to 48 hours after injection and…
Coming back to: The SOUL trial and oral semaglutide cardiovascular outcomes Replied, post #26 · Compounds › Oral incretins · 10 Aug 2025 · 7 likes This follows post #23 rather than contradicting it. Orforglipron is a small molecule, not a peptide. That changes almost everything: no absorption enhancer required, no…
How to research a compound with no human data without deceiving yourself Replied, post #25 · Compounds › Other compounds · 31 Jul 2025 · 0 likes Reading a supplier's product description as a marketing document: that is exactly what it is. The hyperbole, the mechanism written as fact, the theoretical benefits…
A calculator that gives a right answer to the wrong question — does this still hold? Replied, post #3 · Data & Tools › Calculators · 30 Jul 2025 · 10 likes Offline use: all calculators are written in JavaScript and can be downloaded and run offline if desired. They do not require internet connectivity to function.
Second pass at: Why this subcategory is stricter about sourcing than most Replied, post #13 · Compounds › Secretagogues & GH axis · 26 Jul 2025 · 0 likes Why this subcategory is stricter about sourcing than most: the evidence base is weaker and that is precisely why documentation quality matters more. A supplier page…
Tirzepatide in type 2 diabetes: the SURPASS programme, summarised honestly Replied, post #136 · Compounds › Tirzepatide · 14 Jul 2025 · 2 likes Half-life difference: tirzepatide is about 5 days versus semaglutide's week-long. Practically, that means steady state is reached slightly faster and the post-dose…
Revisiting: Why a compound being unapproved is not the same as being illegal to possess Replied, post #43 · Sourcing › Regulatory · 6 Jul 2025 · 5 likes post #42 answers the question as asked. The question underneath it is different. Why this category is maintained as documentation, not as recommendations: the goal is…
Coming back to: What published stability data actually covers, and what it does not Replied, post #76 · Practice › Storage & stability · 1 Jul 2025 · 0 likes On post #72 — agreed on the reasoning, with one qualification. Visual inspection: if a solution is visibly cloudy, discoloured, or contains particles, those are red…
Reading a rodent study on a secretagogue without over-extrapolating Replied, post #19 · Compounds › Secretagogues & GH axis · 27 Jun 2025 · 7 likes IGF-1 as a surrogate: it is a better integrated measure than a spot growth hormone level and it is still a surrogate, with all the caveats that come with surrogates.…
Follow-up: The decimal-point error, and the habit that catches it Replied, post #13 · Practice › Reconstitution · 18 Jun 2025 · 0 likes Arithmetic step by step: a 5 mg vial with 2 mL of diluent gives (5 mg) / (2 mL) = 2.5 mg/mL. On a U-100 syringe at that concentration, 100 units = 1 mL = 2.5 mg, so…
[2026 update] An appeal that failed, and what I would do differently Replied, post #91 · Access › Insurance & coverage · 13 Jun 2025 · 2 likes Coming back to post #89, because the follow-up matters more than the original answer. Denial letters: the stated reason tells you exactly what to submit next. A denial…
Forced degradation studies: designing one that is informative — does this still hold? Replied, post #9 · Analytics › Method validation · 5 Jun 2025 · 13 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…
Publishing an inconvenient result: a case study Replied, post #28 · Sourcing › Independent verification · 2 Jun 2025 · 1 like Blind sampling: submitting without the laboratory or seller knowing the source removes the two easiest ways for a result to be shaped: selective submission and…
DXA precision and the least significant change for lean mass — the long version Replied, post #70 · Outcomes › Body composition · 20 May 2025 · 16 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…
Follow-up: Tesamorelin has an approved indication — what that changes about the evidence Replied, post #65 · Compounds › Secretagogues & GH axis · 19 May 2025 · 0 likes Development history is more informative than speculation: ipamorelin was investigated clinically for post-operative ileus and was not taken forward to registration.…
Follow-up: History of disordered eating and why it changes the conversation Replied, post #9 · Clinical › Special populations · 15 May 2025 · 10 likes Medullary thyroid carcinoma history: an absolute contraindication because of the preclinical findings in rodent toxicology. The history (personal or family, especially…
HbA1c lag and what it can and cannot tell you at eight weeks Replied, post #16 · Clinical › Bloodwork · 7 May 2025 · 2 likes TSH and free hormones: TSH is a reasonable screening test but does not tell you about actual free hormone levels. If TSH is abnormal, free thyroid hormones confirm…
Second pass at: Reading a combination trial: attributing effect to components Replied, post #11 · Compounds › Cagrilintide & amylin analogues · 1 May 2025 · 4 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…
Validating a calculator against hand arithmetic — what changed since Replied, post #38 · Data & Tools › Calculators · 28 Apr 2025 · 0 likes This follows post #35 rather than contradicting it. Why calculators are not medical advice: they do arithmetic. Medical decisions are not arithmetic. A calculator that…
Carryover and the ghost peak from last week's standard Replied, post #80 · Analytics › HPLC & UHPLC · 11 Apr 2025 · 5 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…
Carryover and the ghost peak from last week's standard Replied, post #9 · Analytics › HPLC & UHPLC · 1 Apr 2025 · 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…
Second pass at: Cross-border purchase within the EU: the actual rules Replied, post #94 · Access › International · 12 Mar 2025 · 19 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…
Second pass at: A history of disordered eating: proceeding carefully Replied, post #2 · Wellbeing › Mental health · 1 Feb 2025 · 4 likes I read the opening post twice before replying, because I had assumed the opposite. Mood and anxiety: mood changes and anxiety are reported by some people. Baseline…
Fixed versus detachable needles: the trade-offs Replied, post #120 · Devices › Syringes & needles · 18 Jan 2025 · 0 likes Reading units correctly: look at the marking from the side, not from above or below. The bottom of the plunger tip is the reading. Parallax error (wrong angle) is a…
Dose numbers for oral formulations are not comparable to injectable ones — a second… Replied, post #18 · Compounds › Oral incretins · 3 Jan 2025 · 26 likes I read post #16 twice before replying, because I had assumed the opposite. Practical note that does not fit anywhere else. Whatever you conclude from this topic, write…
Isotonicity and what happens when you get it wrong Replied, post #11 · Pharmacology › Formulation chemistry · 28 Dec 2024 · 10 likes Amino acid residues and formulation: the specific sequence and composition of a peptide affects what formulation conditions it tolerates. Sequences high in methionine…
Second pass at: How to research a compound with no human data without deceiving yourself Replied, post #8 · Compounds › Other compounds · 28 Dec 2024 · 31 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.
What we do not know about retatrutide, listed explicitly Replied, post #35 · Compounds › Retatrutide · 28 Dec 2024 · 19 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…
Body image changing more slowly than the body Replied, post #127 · Wellbeing › Mental health · 25 Dec 2024 · 5 likes Disordered eating history: a history of anorexia, bulimia, or other eating disorders changes the risk-benefit calculation. Appetite suppression might trigger relapse.…
Revisiting: Moderation log format change Replied, post #63 · Meta › Announcements · 11 Dec 2024 · 0 likes Archives: older announcements are archived by date. Checking archives is useful if you want to know what changed when.
Criticising the method without criticising the authors Replied, post #22 · Evidence › Study critique · 6 Dec 2024 · 33 likes Bias towards the null and bias away from the null: different criticisms have different directions. Differential dropout might bias away from null; conservative…
How to ask for a dose change without antagonising anyone — what changed since Replied, post #44 · Clinical › Prescriber conversations · 9 Nov 2024 · 4 likes Coming back to post #42, because the follow-up matters more than the original answer. Prescription logistics: confirm whether it will be filled locally, requires mail…
Time to steady state after a dose increase Replied, post #143 · Pharmacology › Pharmacokinetics · 6 Nov 2024 · 8 likes On post #139 — agreed on the reasoning, with one qualification. SNAC (the oral bioavailability enhancer): sodium N-(8-[2-hydroxybenzoyl]amino) caprylate transiently…
Hypertension improvement and when medication needs revisiting — a second dataset Replied, post #8 · Clinical › Comorbidities · 8 Oct 2024 · 3 likes Type 2 diabetes: the population with the largest evidence base for these compounds. The SURPASS and SUSTAIN programmes established glycaemic benefit. The renal and…
How to ask for a dose change without antagonising anyone Replied, post #23 · Clinical › Prescriber conversations · 7 Sep 2024 · 28 likes Worth separating two things that post #19 runs together. How to ask for what you need: rather than "should I take this", frame it as "I understand the evidence for this…
Promotion criteria, and the one that stops most nominations Replied, post #50 · Documentation › Doc review · 31 Aug 2024 · 0 likes Multilingual versions: if a maintained page should exist in another language, suggesting it here with your willingness to help translate can make it happen.
Second pass at: Journal club: LEADER as the historical anchor Replied, post #80 · Evidence › Journal club · 29 Jul 2024 · 0 likes Session format: read the paper before posting. The discussion is much better when everyone has. Start with the estimand and population, then methods, then results, then…
Assessing a warm arrival: the decision process — one year on Replied, post #105 · Sourcing › Logistics · 1 Jun 2024 · 21 likes post #104 answers the question as asked. The question underneath it is different. Import restrictions by jurisdiction: what is legal to import for personal use varies…