The reference change value: the number that tells you whether a delta is real
Almost every misreading of a laboratory panel is a misunderstanding of what a reference interval is and how much a result has to move before the movement means anything.
August 2024
Everything filed in August 2024, the month of Volume 1, Number 8. The issue itself — cover, editor’s letter and table of contents — is here.
What a 10% rise in coupling-reagent prices does to a 10 mg vial
Follow the resin, not the catalogue.
A supplier suspends shipping to Japan after 13 consecutive customs detentions
The route did not close because of a rule about peptides.
The slide that was not in the abstract
Reported from the sessions, and from the two hours afterwards.
Two scans, six weeks apart, and the arithmetic of believing the difference
A body-composition report gives four decimal places and no confidence interval. That is the whole difficulty in one sentence.
Twenty-eight days is a number from somebody else’s product
Bacteriostatic water contains benzyl alcohol at 0.9 per cent, which inhibits microbial growth in a preserved multiple-dose presentation. It does not sterilise a contaminated…
Wuxi export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Calder Vale Peptides of Skipton closes after 23 years
A proper account of an operation that existed, and of what closing it cost.
Singapore caps tirzepatide prescribing to 15 specialist centres
Efficacy was never the question in this appraisal. Duration of treatment was.
Holding a dose is a decision, not a failure
Reducing a dose is not going backwards. In a tolerability-limited class it is the mechanism by which the ceiling is found.
How a claim degrades between the bench and the listing
Every step between the laboratory report and the product page removes information, and the badge is the last step.
Xianning export categories for peptide intermediates were quietly renamed
Follow the resin, not the catalogue.
The United Kingdom pharmacy body issues counselling standards for dulaglutide initiation
The evidence base is thin and the document says so, which is to its credit.
The quiet end of the consolidator trading as Meridian Freight Partners
A proper account of an operation that existed, and of what closing it cost.
Ireland declines to reimburse dulaglutide outside a specialist service
Efficacy was never the question in this appraisal. Duration of treatment was.
Errors ranked by how much dose they move
The most dangerous errors are the ones that leave no trace: nothing looks wrong, the mark is in the same place, and the dose is wrong by an order of magnitude.
Beta-arrestin, cAMP, and the part of exenatide’s mechanism nobody quotes
The receptor is expressed in more tissues than the popular account allows, and that is the whole story.
The 17-day notice: how a compounding wind-down works in Ireland
The document is four pages. Three of them are about dates.
Halvard & Pike Apothecary of Portland, Maine closes after 23 years
A proper account of an operation that existed, and of what closing it cost.
Independent analysis puts a JEEP tirzepatide lot at 96.0%, against 92.6% on the certificate
The result is unremarkable. What the report omits is not.
What orthogonal actually means, and what it does not
An orthogonal method separates on a different physical principle, so that species co-eluting in the first are likely to resolve in the second. Two runs of the same method at…
Six words a verification badge would need to mean anything
What a verification mark would have to carry to be checkable: a date, a lot, a method, a submitter and a link to the report.
Two ways to lift a peptide into a vacuum, and why the answer differs
The ionisation method determines the charge states you see, the adducts you must account for, and the modifications you might destroy in the process.
A shortage listing ends. 17 pharmacies now have a business model and no legal basis for it.
The document is four pages. Three of them are about dates.
The quiet end of the consolidator trading as Meridian Freight Partners
A proper account of an operation that existed, and of what closing it cost.
New Zealand caps dulaglutide prescribing to 17 specialist centres
Efficacy was never the question in this appraisal. Duration of treatment was.
What a 15% rise in coupling-reagent prices does to a 2 mg vial
Follow the resin, not the catalogue.
The effect profile, predicted from an expression map
Delayed gastric emptying is a mechanism that becomes an adverse effect above a threshold. It is not a complication in the ordinary sense.
The relabeller trading as Vantris Bio closes after 7 years
A proper account of an operation that existed, and of what closing it cost.
Why summer is a documented quality problem in this trade
The route did not close because of a rule about peptides.
Norway health authority warns on falsified exenatide pens
Reported from the analysis, not from a warning notice.
SURMOUNT-1 misses on a secondary endpoint the coverage has not mentioned
A design note rather than a result: what the comparator was, and what that permits you to conclude.
The substudies, read properly: who was scanned, when, and with what
What was pre-specified, what was exploratory, and what was calculated afterwards by people who did not run the trial.
LAL, kinetic chromogenic, recombinant factor C: three ways to the same figure
The limit for a parenteral product is calculable from the dose and the body weight in two lines. Almost nobody in this trade performs the calculation.
A supplier suspends shipping to Ireland after 9 consecutive customs detentions
The route did not close because of a rule about peptides.
WWB declines, for the 10th time, to name its synthesis house
Documentation practice is the only part of vendor quality a buyer can assess before purchase.
Sweden declines to reimburse tirzepatide outside a specialist service
Efficacy was never the question in this appraisal. Duration of treatment was.
Two gradients, one sample, two purities
A shallow gradient resolves impurities that a steep one runs into the parent peak. Both methods are legitimate; only one of them can see the small stuff.
Everything on the page, in the order a chemist would read it
The header identifies the batch, the table records the tests, and the footer says who is answerable. Two of the three are usually incomplete.