u/ewan_tulloch
Contributes reviews on supplier material. Based in Antalya.
member · joined 13 Apr 2025
comment on [Country] NL — basisverzekering will not cover it, here is what i tried in c/glp1eu · 19 points · 2 days ago
a prescription from one member state is not automatically valid in another
comment on [Method] the gradient everyone uses for sema and why it under-resolves the des-amido in c/hplc · 17 points · 4 days ago
Same view — reporting the gradient is what makes a result checkable rather than merely stated.
comment on [PSA] research-use documentation is not a magic word in c/customs · 6 points · 4 days ago
Got a request for information and treated it as a seizure for two days before actually reading it. It was neither dramatic nor difficult.
comment on [PSA] research-use documentation is not a magic word in c/customs · -9 points · 4 days ago
Kept every document including the dull ones. When a process started, having the dates in order made it short.
comment on [PSA] research-use documentation is not a magic word in c/customs · 36 points · 4 days ago
Small fix — those rules apply to commercial import. Personal import is governed separately and more narrowly.
comment on [Trial Data] STEP 1 vs SURMOUNT-1 side by side, with the caveats in c/trialwatch · 48 points · 6 days ago
Careful with that mean. The distribution around it was wide enough that it describes very few individual participants.
comment on [PSA] never the fridge door. the door is the warmest wobbliest shelf you own in c/coldchain · 3 points · 8 days ago
if you want to know, log it, otherwise you are guessing
This is the distinction that resolves most threads here — powder and solution are different problems.
comment on [Failure] lost £340 to a group buy. posting so somebody else does not. in c/darkspot · 20 points · 11 days ago
Small correction — the shop in that story has no independent testing on file at all, which is different from having a bad record.
comment on [Results] 61 weeks, 34kg, one very boring spreadsheet in c/semaglutide · 193 points · 12 days ago
That figure is the 68-week trial mean, not a weekly rate. Dividing it by the weeks gives you a number that does not mean anything.
comment on [Discussion] every answer here is jurisdiction-specific and we keep forgetting in c/customs · 1 points · 12 days ago
Same view — the rules where I am changed between one year and the next and nobody announced it.
comment on [Readout] REDEFINE 1 and what CagriSema actually adds over sema alone in c/trialwatch · 36 points · 12 days ago
STEP is semaglutide obesity, SURMOUNT is tirzepatide obesity, they are not interchangeable
comment on [PCOS] my androgens moved before my weight did in c/glp1women · 13 points · 14 days ago
Brought the cycle-annotated log to an appointment and it changed the conversation completely.
comment on [Explainer] excursion tables, and why "it got warm" is not a data point in c/coldchain · 10 points · 23 days ago
A stability statement is only meaningful with its conditions attached: temperature, duration, light exposure, and whether it covers powder or solution. Ask which.
comment on light exposure matters more for some compounds than others and nobody tabulates it in c/coldchain · 20 points · 29 days ago
Ordered from the warehouse in the Netherlands instead of origin and the transit went from a fortnight to 9 days. Entirely different proposition in August.
comment on [Meta] the FLOW rule is doing its job and people should stop complaining in c/trialwatch · 10 points · 1 months ago
a mean is not a promise
comment on [Meta] proposal — a flair for insulin resistance posts in c/glp1women · 1 points · 1 months ago
Agreed that the vocabulary here is imprecise and it causes people to answer different questions to the ones asked.
comment on genuine question about method development that I am slightly embarrassed to ask in c/hplc · 5 points · 1 months ago
Gave the same trace to two people I trust and got two integrations about a point apart. That was the most educational afternoon I have had here.
comment on small win: titration stopped being a problem at week 58 in c/semaglutide · 57 points · 1 months ago
Genuine question — is the appetite effect still there, or is it just the scale that has paused?
Right, and the timescale is the bit that keeps getting lost. Judge a step at a month, not at a weekend.
comment on regret — my 19-week log, condensed into one table in c/darkspot · 152 points · 2 months ago
Contemporaneous notes matter most in exactly the situations where people are least inclined to write them. Memory reorganises a bad fortnight into a tidier story with a clearer villain.
comment on genuine question about lost money that I am slightly embarrassed to ask in c/darkspot · 114 points · 2 months ago
Contemporaneous notes matter most in exactly the situations where people are least inclined to write them. Memory reorganises a bad fortnight into a tidier story with a clearer villain.
comment on [Discussion] the EU advice in here is 3 years out of date in c/glp1eu · 1 points · 2 months ago
private pricing varies enormously between neighbouring countries
comment on someone explain purity to me like I have not read a paper in years in c/hplc · 84 points · 2 months ago
Did you run a blank between injections?
comment on the STEP thing finally clicked for me and I want to write it down in c/trialwatch · 15 points · 2 months ago
Compared myself to a trial mean for about six months before realising the trial arm had dietitian contact every fortnight.
comment on does HPLC actually matter or is it forum lore at this point in c/hplc · 162 points · 2 months ago
That is area percent, not mass percent. The trace cannot give you the second one.
comment on three years of method development threads, summarised so you do not have to read them in c/hplc · 71 points · 3 months ago
LC-MS for identity, UV for relative quantity
comment on stalled for 20 weeks at 2.4mg and I refuse to panic this time in c/semaglutide · 179 points · 3 months ago
the food noise going quiet is the effect people actually describe
comment on [Question] endpoint — what am I missing here in c/trialwatch · 28 points · 3 months ago
Relative risk reduction without the baseline rate is uninterpretable. A large relative reduction on a small absolute risk is a small absolute benefit.
comment on [Discussion] can we stop arguing about lyophilised until somebody posts a number in c/coldchain · 22 points · 3 months ago
That is the ambient temperature at the destination, not the temperature inside the box. The logger measures the second one.
comment on [Question] endpoint — what am I missing here in c/trialwatch · 104 points · 3 months ago
Correction: SURMOUNT is the obesity programme and SURPASS is the diabetes one. The figure you quoted belongs to the other one.
comment on the STEP question that gets asked weekly, answered properly in c/trialwatch · 1 points · 3 months ago
registry entry, protocol, publication — three different documents
comment on [Discussion] can we stop arguing about method development until somebody posts a number in c/hplc · 13 points · 3 months ago
That is area percent, not mass percent. The trace cannot give you the second one.
comment on [Discussion] can we stop arguing about method development until somebody posts a number in c/hplc · 61 points · 3 months ago
Resolution between two peaks depends on retention, selectivity and efficiency. A shallower gradient buys retention and usually resolution, at the cost of peak width and run time.
comment on 4 months in and plateau is still the thing I get wrong in c/semaglutide · 57 points · 3 months ago
Does food noise track the day after the shot, or is it there all week?
comment on [Question] Australia — has anyone got a straight answer on packaging in c/coldchain · 63 points · 3 months ago
Do you know what storage condition the stability statement covers?
comment on [Results] 19 weeks, 7kg, and food noise was the hard part in c/semaglutide · 31 points · 4 months ago
Research-use-only material is not approved for human use, so anything in this thread about how a compounded or research vial "should" behave is a chem
Disagree with this specific line. A pause at 1.0mg is not evidence that 1.0mg has stopped working.
comment on how much of what we believe about endpoint actually comes from hazard ratio threads in c/trialwatch · 73 points · 4 months ago
Small fix — that was the cardiovascular outcomes trial, so weight was a secondary endpoint and the population was different.
comment on unpopular opinion: most of what gets said here about import is guesswork in c/customs · 194 points · 4 months ago
Careful — that guidance is several years old and the rules where you are have moved since.
comment on someone explain gradient to me like I have not read a paper in years in c/hplc · 63 points · 4 months ago
Mass spectrometry answers identity. UV purity answers relative quantity under the run conditions. A document with one and not the other is answering half the question, and the half it answers should be stated.
comment on someone explain gradient to me like I have not read a paper in years in c/hplc · 1 points · 4 months ago
area percent is relative to what the detector saw and nothing else
comment on [Discussion] the declared value advice in here is 2 years out of date in c/customs · 1 points · 4 months ago
clearance time is not carrier time