Ranked by engagement

Top topics — this quarter

Ranked by replies, likes and views over this quarter, with a bonus for topics that reached a marked solution. Engagement is a proxy for usefulness and a poor one; the documentation commons is the better index of what is settled.

This week This month This quarter This year All time

515 topics · page 1 of 14

Topic	Participants	Replies	Views	Activity
Second pass at: Metformin co-administration and additive GI effects Practice › Interactions hypoglycaemia delayed gastric emptying metformin needs a source On the subject in the title: Second pass at: Metformin co-administration and additive GI effects Working notes rather than a conclusion. I have read the maintained page on this and I still have a gap, so I am…	+131	142	56k	19d
Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field Evidence › Journal club estimand risk of bias number needed to treat Revisiting: Journal club: SURMOUNT-OSA and a hard endpoint in a soft field — setting out what I have, and where I think it stops being reliable. Comparing LEADER ( N Engl J Med , 2016) with SUSTAIN 6 ( N Engl…	+108	122	52k	7d
[2026 update] Regional warehouse stock versus direct despatch Sourcing › Logistics packaging customs shipping cold chain Regional warehouse stock versus direct despatch Writing it up because I had to work it out twice and would rather nobody else did. A logistics question, since the answers here are usually better than anywhere…	+135	147	32k	2d
[2026 update] Interpreting a result that disagrees with the supplier's certificate Sourcing › Independent verification Medutest VendorInvestigate blind sampling third-party testing Solved On the subject in the title: Interpreting a result that disagrees with the supplier's certificate Working notes rather than a conclusion. Structured report rather than an opinion, following the format the…	+121	128	51k	17h
An appeal that succeeded, with the letter structure — the long version Access › Insurance & coverage appeals formulary insurance An appeal that succeeded, with the letter structure — the long version — setting out what I have, and where I think it stops being reliable. A coverage question with the paperwork detail included, since that…	+113	136	32k	1mo
What consumer-accessible tests can and cannot determine — a second dataset Analytics › Home & field testing ELISA LOD & LOQ third-party testing documentation quality Solved What consumer-accessible tests can and cannot determine — a second dataset I have a specific reason for asking rather than idle curiosity, and the context is below. Posting the method first, because I know…	+117	131	45k	10h
Seven-day rolling means and why weekly readings mislead Outcomes › Progress reports data table DXA effect size long read Seven-day rolling means and why weekly readings mislead Writing it up because I had to work it out twice and would rather nobody else did. Maintenance rather than loss, which is the part of this that almost…	+109	125	42k	10h
Racemisation and why it is invisible to a mass measurement Analytics › Impurities & related substances counter-ion content endotoxin testing HPLC Closed Posting this under the heading it deserves: Racemisation and why it is invisible to a mass measurement Everything below is what sits behind that. Working through the identity arithmetic and I would like it…	+120	127	41k	1mo
A reconstituted vial's beyond-use date and the reasoning behind common figures Practice › Storage & stability temperature excursion storage freeze-thaw Posting this under the heading it deserves: A reconstituted vial's beyond-use date and the reasoning behind common figures Everything below is what sits behind that. Practical question with the units stated,…	+125	129	45k	2mo
[2026 update] Charge states for a 4 kDa peptide, worked through Analytics › Mass spectrometry counter-ion content MALDI-TOF high-resolution MS LC-MS On the subject in the title: Charge states for a 4 kDa peptide, worked through Working notes rather than a conclusion. Working through the identity arithmetic and I would like it checked. semaglutide has a…	+116	135	31k	3mo
Micro-titration: a disputed topic, argued properly Practice › Dosing & titration titration dose reduction worked example tirzepatide Solved Wiki Micro-titration: a disputed topic, argued properly Writing it up because I had to work it out twice and would rather nobody else did. A question about technique rather than about dose. I have been doing the…	+99	110	61k	2d
Revisiting: The report format the maintainers ask for, and why each field is there Sourcing › Vendor reports batch & lot numbers Janoshik Analytical documentation quality third-party testing Posting this under the heading it deserves: Revisiting: The report format the maintainers ask for, and why each field is there Everything below is what sits behind that. Structured report rather than an…	+100	108	57k	1d
[2026 update] Storing lyophilised material long term: what governs the shelf life Practice › Storage & stability beyond-use date freeze-thaw cold chain cloudy or discoloured solution Storing lyophilised material long term: what governs the shelf life — setting out what I have, and where I think it stops being reliable. A question about technique rather than about dose. I have been doing…	+122	133	35k	1mo
Alcohol: what is documented and what is folklore Practice › Interactions metformin insulin delayed gastric emptying Posting this under the heading it deserves: Alcohol: what is documented and what is folklore Everything below is what sits behind that. A question about technique rather than about dose. I have been doing the…	+120	134	11k	2d
Tracking a shortage from primary sources rather than rumour Access › Shortages shortage FDA formulary Tracking a shortage from primary sources rather than rumour — setting out what I have, and where I think it stops being reliable. Documenting an access outcome, dated, because everything in this category…	+121	126	35k	13h
A 5 mg vial and a 0.25 mg dose: the arithmetic in full Practice › Reconstitution syringe units worked example reconstitution bacteriostatic water Solved A 5 mg vial and a 0.25 mg dose: the arithmetic in full Writing it up because I had to work it out twice and would rather nobody else did. Practical question with the units stated, because I have seen how…	+124	141	16k	2d
[2026 update] 0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Devices › Syringes & needles dead volume needle gauge & length subcutaneous injection Solved On the subject in the title: 0.3 mL versus 0.5 mL versus 1 mL barrels: resolution matters Working notes rather than a conclusion. Practical question with the units stated, because I have seen how quickly…	+108	124	27k	2mo
The 2.5 mg starting dose is not a therapeutic dose — why that matters Compounds › Tirzepatide SURPASS programme SURMOUNT programme effect size Solved The 2.5 mg starting dose is not a therapeutic dose — why that matters Writing it up because I had to work it out twice and would rather nobody else did. Session topic: SUSTAIN 6 ( N Engl J Med , 2016). Please…	+119	136	5.6k	2mo
Insurance and replacement policies, compared Sourcing › Logistics temperature excursion cold chain customs shipping Solved On the subject in the title: Insurance and replacement policies, compared Working notes rather than a conclusion. Structured report rather than an opinion, following the format the maintainers asked for.…	+115	122	17k	17h
Journal club: orforglipron phase 2 and the non-peptide question Evidence › Journal club journal club estimand randomised trial Journal club: orforglipron phase 2 and the non-peptide question Writing it up because I had to work it out twice and would rather nobody else did. I have seen SUSTAIN 6 ( N Engl J Med , 2016) cited in support…	+120	132	13k	1d
Reading a home test result without over-claiming Analytics › Home & field testing ELISA documentation quality LOD & LOQ third-party testing Reading a home test result without over-claiming — setting out what I have, and where I think it stops being reliable. Working through the identity arithmetic and I would like it checked. retatrutide has a…	+124	137	19k	7h
Coming back to: Washout: how long is long enough, and for what purpose Pharmacology › Pharmacokinetics missed dose semaglutide worked example Closed Posting this under the heading it deserves: Washout: how long is long enough, and for what purpose Everything below is what sits behind that. Working through the identity arithmetic and I would like it…	+128	139	3k	3mo
Follow-up: Search filters: what is missing Meta › Site feedback guidelines site feedback moderation On the subject in the title: Search filters: what is missing Working notes rather than a conclusion. Nominating something for promotion into the documentation commons. The topic in question keeps being…	+126	141	1.6k	29d
What a certificate commits its issuer to Analytics › COA interpretation reference standards batch & lot numbers amino acid analysis The question in the title: What a certificate commits its issuer to I will give what I have already checked below so nobody repeats it. A documentation question rather than an analytical one. I have a…	+101	116	26k	19h
Carryover and the ghost peak from last week's standard — what changed since Analytics › HPLC & UHPLC gradient method data table HPLC UV & DAD detection Solved Carryover and the ghost peak from last week's standard — what changed since Writing it up because I had to work it out twice and would rather nobody else did. Posting the method first, because I know what the…	+98	114	37k	22d
[2026 update] A vial that will not fully dissolve: what to check and in what order Practice › Reconstitution concentration maths dead volume bacteriostatic water syringe units Solved Posting this under the heading it deserves: A vial that will not fully dissolve: what to check and in what order Everything below is what sits behind that. Practical question with the units stated, because I…	+114	128	20k	1mo
Journal club: SUSTAIN 6 and its retinopathy signal Evidence › Journal club estimand effect size risk of bias journal club Under review On the subject in the title: Journal club: SUSTAIN 6 and its retinopathy signal Working notes rather than a conclusion. I have seen SELECT ( N Engl J Med , 2023) cited in support of a claim I do not think it…	+110	122	46k	1d
Why we ask for units every single time, with three examples of what goes wrong Start Here › How to Ask worked example onboarding beginner friendly guidelines Why we ask for units every single time, with three examples of what goes wrong — that is the question, and I have not found it answered plainly anywhere I have looked. Question in the title. Context below,…	+118	135	2.2k	11d
Journal club: what we got wrong in an earlier session Evidence › Journal club number needed to treat effect size randomised trial journal club On the subject in the title: Journal club: what we got wrong in an earlier session Working notes rather than a conclusion. Session topic: SURMOUNT-1 ( N Engl J Med , 2022). Please read it before posting; the…	+114	125	2.5k	23h
Run-in periods and the population they select Evidence › Trials surrogate endpoints discontinuation & dropout estimand randomised trial On the subject in the title: Run-in periods and the population they select Working notes rather than a conclusion. Session topic: PIONEER 6 ( N Engl J Med , 2019). Please read it before posting; the…	+130	142	7.3k	1mo

Sponsored Sigma-Aldrich — certified reference materialsReference standards, analytical reagents and certified materials for method calibration. If you are validating a method, this is where the standard comes from.Reference standards →