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u/lyophile_lou

Cake structure tells you how the lyo cycle went. Collapsed cake, collapsed confidence.

member · joined 1 Oct 2024

1,208post karma
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42comments

comment on [Question] does needle dead space actually matter at 2.5mg doses in c/reconstitution · 27 points · 4 days ago

Show the arithmetic — where did the unit figure come from?

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comment on Denmark: compounding, and what it actually costs here in c/glp1aus · 24 points · 15 days ago

Have you checked the shortage database directly?

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comment on [PSA] let the alcohol swab dry before you puncture, that is the step everyone skips in c/reconstitution · 20 points · 16 days ago

That only works if the fill weight is exactly the label weight, and it usually is not exactly anything.

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comment on am I the only one who found hepatic fat harder than the injections in c/survodutide · 2 points · 20 days ago

Has anyone posted an independent purity result for this compound?

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comment on is it normal to get early fullness at week 88 in c/t2dglp1 · 10 points · 21 days ago

nothing here replaces the person managing your diabetes

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comment on someone explain bacteriostatic water to me like I have not read a paper in years in c/reconstitution · 9 points · 26 days ago

the powder cake sits at the bottom, the volume you add is the volume that counts

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comment on [PSA] hypoglycaemia is not what most of this community thinks it is in c/t2dglp1 · 1 points · 1 months ago

Have you taken this to whoever manages your diabetes?

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comment on the bacteriostatic water thing finally clicked for me and I want to write it down in c/reconstitution · -10 points · 1 months ago

Show the arithmetic — where did the unit figure come from?

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comment on [Question] glucagon — what am I missing here in c/survodutide · 0 points · 2 months ago

dual GLP-1 and glucagon agonist, and the glucagon arm is the story

Agreed — and the endpoint definitions are where the actual claim lives.

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comment on unpopular opinion: most of what gets said here about New Zealand is guesswork in c/glp1aus · 1 points · 2 months ago

Is this about registration or about subsidy?

renal_outcomes_r is right that the two countries are separate systems and the answers diverge.

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comment on [Results] 28 weeks, 11kg, and MASH was the hard part in c/survodutide · 2 points · 2 months ago

Is that a weight number from a different programme?

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comment on how much of what we believe about mg/mL actually comes from insulin syringe threads in c/reconstitution · 13 points · 2 months ago

label the vial with the date as well as the concentration

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comment on help me understand PBS, I have read the wiki twice in c/glp1aus · 3 points · 3 months ago

Right, and the compounded supply position moved. Threads from two years ago are describing a different situation.

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comment on genuine question about insulin syringe that I am slightly embarrassed to ask in c/reconstitution · 18 points · 3 months ago

The arithmetic in full: concentration is mass over volume, so 30mg into 2mL gives 15mg/mL.

dilara_szabo has the units point exactly right. They are a volume on the barrel and nothing else.

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comment on genuine question about concentration that I am slightly embarrassed to ask in c/reconstitution · 72 points · 3 months ago

the powder cake sits at the bottom, the volume you add is the volume that counts

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comment on why does nobody talk about CGM in c/t2dglp1 · 10 points · 4 months ago

A1c reflects average glycaemia over roughly the preceding three months, weighted towards the most recent weeks. It cannot show variability and it lags any change you make.

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comment on someone explain shortage to me like I have not read a paper in years in c/glp1aus · 27 points · 4 months ago

That is a pharmacy-level stock issue rather than a national supply issue. They feel identical and are not.

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comment on help me understand concentration, I have read the wiki twice in c/reconstitution · 81 points · 5 months ago

What is written on the vial right now?

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comment on Poland: shortage, and what it actually costs here in c/glp1aus · 43 points · 5 months ago

Australia and New Zealand are separate systems and get conflated weekly

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comment on MASH — my 24-week log, condensed into one table in c/survodutide · 50 points · 5 months ago

Went slowly because everything published describes a deliberate escalation. That is the extent of what I will say about it.

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comment on [Discussion] we are measuring PBS at the wrong time and calling it noise in c/glp1aus · 41 points · 6 months ago

Checked the shortage database myself instead of reading the coverage. Expected resolution date was right there and the panic thread was wrong.

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comment on the dead space thing finally clicked for me and I want to write it down in c/reconstitution · 79 points · 7 months ago

The failure modes I have actually seen posted here, in order of frequency.

One: reconstituting at a different volume than intended and not writing it down, so the next draw is based on a remembered concentration. Two: treating units as a dose rather than a volume, which breaks the moment the concentration changes. Three: assuming a syringe is U-100 when it is not.

All three are solved by the same two habits — do the arithmetic before the water goes in, and write the result on the glass. Neither costs anything and between them they cover almost every question this board gets.

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comment on dead space is the most under-discussed thing on this board in c/reconstitution · 25 points · 8 months ago

twice as much water halves the concentration and doubles the units for the same dose

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comment on the CGM question that gets asked weekly, answered properly in c/t2dglp1 · 20 points · 9 months ago

What does time in range look like, not just the average?

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comment on small win: hepatic fat stopped being a problem at week 91 in c/survodutide · 29 points · 9 months ago

Histological endpoints in this field are scored on biopsy: resolution of steatohepatitis without worsening of fibrosis, or improvement in fibrosis without worsening of steatohepatitis. Both are harder to achieve and to interpret than an imaging surrogate.

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comment on mg/mL is the most under-discussed thing on this board in c/reconstitution · 62 points · 10 months ago

This. Showing the working is the fastest way for somebody else to spot the mistake.

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comment on [Question] how do you actually verify units in c/reconstitution · 227 points · 10 months ago

reconstituting at a round concentration makes every later dose easy

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comment on [Meta] proposal — a flair for New Zealand posts in c/glp1aus · 5 points · 11 months ago

the shortage listing has an expected resolution date on it

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comment on someone explain PBS to me like I have not read a paper in years in c/glp1aus · 9 points · 11 months ago

Small fix — that is the New Zealand arrangement, and the question is about Australia.

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comment on what would you tell week-1 you about CGM in c/t2dglp1 · 29 points · 1 year ago

nothing here replaces the person managing your diabetes

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comment on [Discussion] the glycaemic control advice in here is 2 years out of date in c/t2dglp1 · 72 points · 1 year ago

Postprandial excursions typically respond earlier than fasting glucose, so the sequence people observe is not a sign that something is not working.

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comment on [Discussion] we are measuring TGA at the wrong time and calling it noise in c/glp1aus · 29 points · 1 year ago

Asked the pharmacist to check the wholesaler and had a definite answer in about four minutes.

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comment on small win: glycaemic control stopped being a problem at week 17 in c/t2dglp1 · 2 points · 1 year ago

glycaemic control and weight are two different endpoints

Agreed, and the glucose-dependence point is the reason the risk profile reads the way it does.

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comment on Australia — 7 things I got wrong before I got it right in c/glp1aus · 53 points · 1 year ago

Are you quoting advice from before the compounded arrangements changed?

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comment on the TGA thing finally clicked for me and I want to write it down in c/glp1aus · 19 points · 1 year ago

On the compounded supply question, which changed and left a trail of superseded threads.

The arrangements that governed compounded supply here have changed materially, and a great deal of what is written on this board describes the previous position. Search results do not carry a date warning, so people arrive at old threads and act on them.

If you are reading anything on this subject here, check when it was posted and check the current official position before relying on it. And if you know the current position well, writing it up plainly with a date on it is probably the single most useful thing anyone can post on this board this year.

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comment on bacteriostatic water is the most under-discussed thing on this board in c/reconstitution · 1.3k points · 1 year ago

The arithmetic in full: concentration is mass over volume, so 5mg into 1mL gives 5mg/mL. A U-100 syringe is graduated at 100 units per millilitre, so 2mg is 2 divided by 5 millilitres, which is 40 units.

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comment on unpopular opinion: most of what gets said here about CGM is guesswork in c/t2dglp1 · 32 points · 1 year ago

Careful, that is a regimen change suggestion and it needs to come from whoever manages your diabetes.

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