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[Question] Ireland — has anyone got a straight answer on 503B
Ireland — has anyone got a straight answer on 503B. If this has been answered properly somewhere, link me and I will delete. Potency and sterility testing on the…
u/runa_grimaldi
Contributes reviews on supplier material. Based in Kraków.
member · joined 14 May 2025
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comment on [Trial Data] REDEFINE 1 — what cagri adds on top of sema in c/cagrilintide · 30 points · 2 days ago
do not assume the dosing intuitions from the GLP-1 boards transfer
comment on [Correction] the concentration table going round is off by a factor of ten in c/reconstitution · 25 points · 6 days ago
If your calculation produces a fraction of a unit, the concentration is wrong for your dose. Change the water volume until the numbers land on whole units.
comment on 28 days at room temp after first puncture — where does that number come from in c/reconstitution · 2 points · 10 days ago
Agreed on the swirl. There is no reason to shake it and a good reason not to.
comment on [Explainer] units are volume, mg are mass, this is the #1 error on this site in c/reconstitution · 38 points · 12 days ago
Correction: that gives 40 units, not what you have written. 5mg into 1mL is 5mg/mL and the division follows from there.
comment on [Question] A1c 5.6 but CGM says otherwise. which do i believe. in c/t2dglp1 · 10 points · 14 days ago
Correction: that trial is the diabetes programme and the figure you quoted is its glycaemic endpoint, not a weight result.
comment on [Caution] not approved anywhere. keep posts descriptive. in c/cagrilintide · 1 points · 21 days ago
Correction: that is the combination programme, not the monotherapy readout. Different arms, different numbers.
comment on [Struggle] eight weeks, 2kg, doing everything right, and it is grinding me down in c/progresspics · 89 points · 22 days ago
Yes. Clothes fitting differently arrives well before the scale acknowledges anything.
comment on amylin — 23 things I got wrong before I got it right in c/cagrilintide · 0 points · 1 months ago
The engineering problem was duration: native amylin is short-acting and aggregation-prone. A long-acting analogue suitable for weekly administration is what makes the combination clinically interesting.
comment on [Rules] no referral links. not once. not ever. permanent. in c/meta · 4 points · 1 months ago
That is a complaint rather than a proposal. Bring wording and it can actually be discussed.
comment on [Milestone] came off two blood pressure meds and one statin in c/progresspics · 67 points · 1 months ago
Push back on the goal number. You chose it before you knew what any of this felt like.
comment on [Milestone] came off two blood pressure meds and one statin in c/progresspics · 172 points · 1 months ago
Text-only posting removes the comparison mechanism that makes image boards difficult, which is why this community adopted the rule and has kept it.
comment on [Meta] the 503A rule is doing its job and people should stop complaining in c/compounding · 9 points · 1 months ago
Is the compound still on the shortage list where you are?
comment on stalled for 14 weeks at 7.5mg and I refuse to panic this time in c/newbiequestions · 21 points · 2 months ago
Week 4 for me was completely flat and I was convinced something was wrong. It was not. Month two was where everything happened.
comment on does mg/mL actually matter or is it forum lore at this point in c/reconstitution · 36 points · 2 months ago
How many mg in the vial and how many mL are you adding?
comment on API source — 17 things I got wrong before I got it right in c/compounding · 34 points · 2 months ago
compounded is not generic, there is no equivalence claim
comment on research peptides — 22 things I got wrong before I got it right in c/researchpeptides · 6 points · 2 months ago
Small fix — that is net peptide content, not purity. Both are on the certificate and they differ substantially here.
comment on research peptides — 22 things I got wrong before I got it right in c/researchpeptides · -27 points · 2 months ago
identity before purity, every time, for anything unusual
comment on unpopular opinion: most of what gets said here about rules are guesswork in c/meta · 37 points · 2 months ago
sort by controversial occasionally, it is worth it
comment on how much of what we believe about units actually comes from dead space threads in c/reconstitution · 607 points · 3 months ago
Research-use-only material is not approved for human use, so treat everything in this thread as arithmetic about solutions rather than instructions for a person.
comment on anyone else notice T2D kicking in around week 89 in c/t2dglp1 · 58 points · 3 months ago
Postprandial excursions typically respond earlier than fasting glucose, so the sequence people observe is not a sign that something is not working.
comment on why does nobody talk about thymosin in c/researchpeptides · 77 points · 3 months ago
Agreed — identity first for anything off the well-travelled list. The purity number is meaningless until you know what it is pure of.
comment on why does nobody talk about non-scale victory in c/progresspics · 3 points · 3 months ago
Nothing on this board is medical advice, and rate, target and method are questions for somebody who knows your history.
This is the one I would put in the sidebar. The middle is where everyone lives.
comment on Canada: API source, and what it actually costs here in c/compounding · 60 points · 4 months ago
The intake asked me three questions and none of them were about my history. That told me everything I needed to know about the model.
comment on how much of what we believe about A1c actually comes from glycaemic control threads in c/t2dglp1 · 17 points · 4 months ago
Sensor accuracy varies across wear, and readings on the first day are the least reliable. Calibration practice and compression artefacts explain many alarming single values.
comment on [Question] how do you actually verify moderation in c/meta · 33 points · 4 months ago
Cosigning on the no-links rule. It is the only reason the pricing threads are trustworthy.
comment on stalled for 4 weeks at 2.5mg and I refuse to panic this time in c/cagrilintide · 15 points · 5 months ago
Dosing intuitions from the GLP-1 boards do not transfer.
Disagreeing with this line: that figure is from a combination arm and is being quoted as monotherapy.
comment on three years of rules threads, summarised so you do not have to read them in c/meta · 142 points · 5 months ago
Vendor source pages carry an outbound link to the supplier’s own storefront, marked nofollow and sponsored, disclosed on the page and again on the funding page. Nothing is received for it.
comment on [Discussion] bacteriostatic water is doing more work than we give it credit for in c/reconstitution · 1 points · 6 months ago
Spent 15 weeks confused about this until somebody drew the table for me. 10mg, 1mL, 10mg/mL, 1mg is 10 units. That is the whole thing.
comment on anyone else notice progress kicking in around week 89 in c/progresspics · 31 points · 6 months ago
Cosigning on timeframe. "13kg" means something completely different over 13 months than over one.
comment on [Meta] the progress rule is doing its job and people should stop complaining in c/progresspics · 3 points · 7 months ago
Push back on the goal number. You chose it before you knew what any of this felt like.
comment on [Question] Ireland — has anyone got a straight answer on 503B in c/compounding · 0 points · 7 months ago
Is the compound still on the shortage list where you are?
comment on [Question] Ireland — has anyone got a straight answer on 503B in c/compounding · 4 points · 7 months ago
Who is the prescriber, and are they the same organisation as the pharmacy?
comment on switched from 1.0mg to 2.4mg and nausea got better, not worse in c/progresspics · 1 points · 7 months ago
That is a waist measurement, not a weight, and the thread has been comparing them as though they were the same.
comment on [Meta] proposal — a flair for rules posts in c/meta · 62 points · 7 months ago
Who does this help, and who does it cost?
comment on how much of what we believe about concentration actually comes from mg/mL threads in c/reconstitution · 111 points · 8 months ago
This. Showing the working is the fastest way for somebody else to spot the mistake.
comment on [Discussion] can we stop arguing about week one until somebody posts a number in c/newbiequestions · 69 points · 8 months ago
titration means going slow on the way up
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[Discussion] can we stop arguing about week one until somebody posts a number
Genuine question, and the title is the question: can we stop arguing about week one until somebody posts a number. Bacteriostatic water contains a preservative, which…
comment on A1c: the version I wish someone had shown me in week 1 in c/t2dglp1 · 2 points · 9 months ago
Yes — time in range tells you about variability, which the average deliberately hides.
comment on [Discussion] the goal advice in here is 3 years out of date in c/progresspics · 17 points · 9 months ago
Yes. Clothes fitting differently arrives well before the scale acknowledges anything.