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u/piotr_bruun

Contributes reviews on supplier material. Based in Graz.

member · joined 12 Mar 2025

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Comments — page 2 of 3

comment on three years of concentration threads, summarised so you do not have to read them in c/reconstitution · 21 points · 6 months ago

Aim the stream down the wall of the vial rather than into the cake. Reconstitution is a solubility problem, not a mixing problem, and mechanical shear does nothing helpful.

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comment on someone explain FLOW to me like I have not read a paper in years in c/trialwatch · 10 points · 6 months ago

read the endpoint before you read the headline

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comment on hypoglycaemia: the version I wish someone had shown me in week 1 in c/t2dglp1 · 1 points · 6 months ago

I would not compare your numbers to that population. Different baseline, different regimen, different trial.

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comment on [Results] 38 weeks, 14kg, and T2D was the hard part in c/t2dglp1 · 43 points · 6 months ago

Certain conditions affect A1c independently of glycaemia. If a result looks inconsistent with the sensor data, that is a question for whoever manages your care rather than for this board.

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comment on help me understand interval stretching, I have read the wiki twice in c/tapering · 124 points · 7 months ago

There is very little published guidance on stopping specifically, which is exactly why board consensus here should carry less weight than usual and a clinician conversation should carry more.

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comment on tried week one for 12 weeks. here is what happened. in c/newbiequestions · 48 points · 7 months ago

Appetite change and weight change are different measurements on different timescales. The first is usually noticed first and the second lags it.

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comment on [Lab] 15th independent test on WXT — 99.4% on a claimed 98.5%, and the trend is the interesting part in c/orforglipron · 8 points · 8 months ago

Correction: that is the oral peptide product, which is a different thing entirely. This one is a small molecule.

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comment on [Lab] 15th independent test on WXT — 99.4% on a claimed 98.5%, and the trend is the interesting part in c/orforglipron · 38 points · 8 months ago

the manufacturing story is genuinely different from the injectables

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comment on [Lab] 15th independent test on WXT — 99.4% on a claimed 98.5%, and the trend is the interesting part in c/orforglipron · 1 points · 8 months ago

the boards keep comparing it to injectables at matched doses, which is meaningless

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comment on is it normal to get injection-site soreness at week 44 in c/sideeffects · 49 points · 8 months ago

Hair shedding after significant weight loss is a telogen effect that follows the rate of loss.

Adding to this — holding the dose rather than stepping is the option people forget they have.

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comment on is it normal to get injection-site soreness at week 44 in c/sideeffects · 81 points · 8 months ago

The effect on gastric emptying is most pronounced early and attenuates with continued dosing, which is the mechanism behind the "it settles at a stable dose" pattern the whole board reports.

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comment on small win: non-peptide stopped being a problem at week 82 in c/orforglipron · 56 points · 8 months ago

Analytically this is a small-molecule identity and purity problem, not a peptide one. The methods, the impurity classes and the reference standards are all different.

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comment on three years of tapering threads, summarised so you do not have to read them in c/tapering · 30 points · 9 months ago

The habits are what carried it for a while. When they slipped, everything else followed, in that order.

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comment on switched from 0.5mg to 1.7mg and injection-site soreness got better, not worse in c/sideeffects · 411 points · 9 months ago

smaller meals, earlier, is the boring advice that works

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comment on unpopular opinion: most of what gets said here about mg/mL is guesswork in c/reconstitution · 1 points · 9 months ago

Adding more water does not change how much peptide is in the vial. It changes the concentration, which changes the volume you draw for the same amount. That is the entire relationship.

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comment on [Discussion] concentration is doing more work than we give it credit for in c/reconstitution · 243 points · 10 months ago

if the maths gives you a fraction of a unit, change the concentration

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comment on does SELECT actually matter or is it forum lore at this point in c/trialwatch · 215 points · 10 months ago

Push back: an open-label extension tells you about the people who stayed. That is a different question.

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comment on [Question] how do you actually verify units in c/reconstitution · 194 points · 10 months 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.

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comment on [Question] beginner — what am I missing here in c/newbiequestions · 5 points · 11 months ago

the first month is a tolerance check, not a results phase

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comment on sulphur burps: what the trials say vs what this community says in c/sideeffects · 131 points · 11 months ago

Small fix — the shedding follows the rate of weight loss, not the compound, and it is temporary.

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comment on sulphur burps: what the trials say vs what this community says in c/sideeffects · 69 points · 11 months ago

Held the dose for an extra six weeks instead of stepping. The fatigue settled and I lost the same amount anyway.

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comment on am I the only one who found orforglipron harder than the injections in c/orforglipron · 13 points · 11 months ago

Milligram-for-milligram comparison with an injectable peptide is not meaningful and I should not have made it.

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comment on am I the only one who found orforglipron harder than the injections in c/orforglipron · 66 points · 11 months ago

Went looking for independent testing on this and found essentially nothing, which was clarifying.

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comment on unpopular opinion: most of what gets said here about dead space is guesswork in c/reconstitution · 1 points · 11 months ago

Correction: that gives 20 units, not what you have written. 5mg into 2mL is 2.5mg/mL and the division follows from there.

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comment on unpopular opinion: most of what gets said here about dead space is guesswork in c/reconstitution · 1 points · 11 months ago

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

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comment on unpopular opinion: most of what gets said here about dead space is guesswork in c/reconstitution · 25 points · 11 months ago

I keep a laminated card in the drawer with the arithmetic on it. Looks ridiculous. Has never once let me draw the wrong volume.

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comment on [Meta] the glycaemic control rule is doing its job and people should stop complaining in c/t2dglp1 · 24 points · 11 months ago

What else is in the regimen?

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comment on [Meta] the FLOW rule is doing its job and people should stop complaining in c/trialwatch · -16 points · 1 year ago

What did the confidence interval look like?

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comment on small win: basics stopped being a problem at week 85 in c/newbiequestions · 76 points · 1 year ago

Which country?

Adding the one habit worth starting today: write the concentration on the vial.

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comment on someone explain discontinuation to me like I have not read a paper in years in c/tapering · 4 points · 1 year ago

Small fix — you have described interval stretching and called it a taper. The exposure profiles differ.

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comment on three years of reflux threads, summarised so you do not have to read them in c/sideeffects · 71 points · 1 year ago

That symptom is not the one being described upthread. Two different things with similar names and the answers are not interchangeable.

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comment on does beginner actually matter or is it forum lore at this point in c/newbiequestions · 2 points · 1 year ago

week two with nothing happening is normal

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comment on the STEP question that gets asked weekly, answered properly in c/trialwatch · 25 points · 1 year ago

Small fix — that was the cardiovascular outcomes trial, so weight was a secondary endpoint and the population was different.

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comment on the STEP question that gets asked weekly, answered properly in c/trialwatch · 12 points · 1 year ago

a mean is not a promise

This is the distinction that would end about half the arguments on this board.

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comment on stalled for 6 weeks at 15mg and I refuse to panic this time in c/sideeffects · 1 points · 1 year ago

Pushback: you changed the dose, the meal timing and the training in the same fortnight, so the attribution is guesswork.

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comment on stalled for 6 weeks at 15mg and I refuse to panic this time in c/sideeffects · -27 points · 1 year ago

Which day of the week relative to the shot does it hit?

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comment on 13 months in and basics are still the thing I get wrong in c/newbiequestions · 21 points · 1 year ago

search first, but a repeat question is not a crime

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comment on 13 months in and basics are still the thing I get wrong in c/newbiequestions · 54 points · 1 year ago

Concentration is mass over volume, and a U-100 syringe reads 100 units per millilitre. Those two facts are the whole of the arithmetic this board keeps explaining.

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comment on [Discussion] the ACHIEVE advice in here is 3 years out of date in c/orforglipron · 1 points · 1 year ago

phase 3 is where the comparison becomes fair

This is the fact the whole board hangs on. Small molecule, not peptide.

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