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u/bastian_eriksen

Contributes reviews on supplier material. Based in Verona.

member · joined 16 Jul 2025

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comment on half-life is 168 hours. that is why your injection day barely matters. in c/glp1science · 2 points · 3 days ago

Disagree. That is a preclinical finding in a rodent model and you are stating it as human pharmacology.

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comment on [Question] metformin alongside — keep it or drop it in c/t2dglp1 · 1 points · 4 days ago

That is a sensor value, not a plasma value, and the two are not interchangeable at that level of precision.

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comment on [Question] metformin alongside — keep it or drop it in c/t2dglp1 · 2 points · 4 days ago

Yes — time in range tells you about variability, which the average deliberately hides.

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comment on why is nobody talking about the SURPASS-CVOT readout in c/tirzepatide · 28 points · 5 days ago

Research-use-only material is not approved for human use.

Agreed, with one qualifier: that is the mean of the top arm and the spread around it was enormous.

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comment on [Caution] trying to conceive? that is a clinician conversation, not a forum one in c/glp1women · 17 points · 6 days ago

Questions about oral contraceptive absorption and gastric emptying are legitimate pharmacology questions with product-specific answers. A pharmacist can answer them properly; a board cannot.

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comment on [Discussion] we underplay how much of the GI stuff is dose-escalation speed in c/sideeffects · 1 points · 25 days ago

fibre and water before you buy anything to fix it

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comment on unpopular opinion: most of what gets said here about gastric emptying is guesswork in c/glp1science · 8 points · 1 months ago

Cosigning on GIP. The genuinely interesting thing is that the biology is not settled and the clinical result is nonetheless robust.

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comment on anyone else notice hair loss kicking in around week 21 in c/sideeffects · 133 points · 1 months ago

Disagree. Severe abdominal pain is not on the list of things to wait out, and this board should not be treating it as one.

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comment on dual agonist — my 18-week log, condensed into one table in c/tirzepatide · 128 points · 1 months ago

Disagree with the conversion table. There is no validated equivalence between the two molecules and posting one as though there is does real damage.

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comment on three years of half-life threads, summarised so you do not have to read them in c/glp1science · 57 points · 1 months ago

The incretin effect is the observation that oral glucose provokes a larger insulin response than intravenous glucose at matched glycaemia, and the difference is mediated by gut hormones. That is the foundation the whole class sits on.

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comment on three years of half-life threads, summarised so you do not have to read them in c/glp1science · 301 points · 1 months ago

Receptor expression in a tissue is necessary but not sufficient for an effect. You also need the agonist to reach it at relevant exposure, and that is where a lot of confident mechanism talk falls down.

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comment on am I the only one who found Mounjaro harder than the injections in c/tirzepatide · 16 points · 1 months ago

a lot of people plateau nicely at 10mg and never need 15

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comment on why does nobody talk about SURPASS in c/tirzepatide · 954 points · 1 months ago

Did you come to this from sema, and if so how long was the gap?

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comment on [Lab] split one vial across Medutest and Janoshik — 99.3% and 98.7% in c/tirzepatide · 2 points · 2 months ago

Right. And the sema-to-tirz "conversion" people post is invented. There is no published equivalence.

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comment on week 73 check-in — 28kg down, early fullness manageable, one thing confusing me in c/sideeffects · 172 points · 2 months ago

Most of the common complaints trace back to slowed gastric emptying — early fullness, reflux, nausea after a large or fatty meal. That is also why meal size and speed change the experience more than anything else.

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comment on nobody warned me about muscle cramps and I would have liked the warning in c/tirzepatide · 20 points · 2 months ago

Are you comparing yourself with the trial mean or with the people who post the most?

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comment on how much of what we believe about Mounjaro actually comes from Zepbound threads in c/tirzepatide · 13 points · 2 months ago

That percentage is body weight change, not body fat. Different measurement, and the distinction gets lost every time.

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comment on genuine question about sulphur burps that I am slightly embarrassed to ask in c/sideeffects · 3 points · 2 months ago

Agreed. Slowing down at meals did more for my reflux than everything I bought to fix it, which was embarrassing to discover.

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comment on mechanism is the most under-discussed thing on this board in c/glp1science · 1 points · 3 months ago

Spent an evening on the receptor distribution literature and the side-effect map suddenly stopped looking random.

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comment on mechanism is the most under-discussed thing on this board in c/glp1science · 1 points · 3 months ago

Read the primary paper after arguing about the summary for a fortnight. The discussion section said almost the opposite of what the thread had concluded.

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comment on [Question] how do you actually verify pharmacology in c/glp1science · 54 points · 3 months ago

I would not read that in vitro number across to a person. The conditions are nothing like physiological.

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comment on help me understand receptor, I have read the wiki twice in c/glp1science · 1 points · 4 months ago

The mental model, in four steps, that makes the rest of this site legible.

wholesome_lurker is right that mechanism gives direction and not magnitude. Worth pinning.

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comment on [Meta] the mechanism rule is doing its job and people should stop complaining in c/glp1science · 1 points · 4 months ago

the central appetite effect is doing more work than the gut effect

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comment on 15 months in and insulin resistance is still the thing I get wrong in c/glp1women · 7 points · 4 months ago

Correcting myself upthread: the shedding started at week 65 for me, not the week I gave.

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comment on why does nobody talk about reflux in c/sideeffects · 2 points · 4 months ago

Has anything else changed in the same window?

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comment on stalled for 15 weeks at 1.0mg and I refuse to panic this time in c/sideeffects · 189 points · 5 months ago

fatigue plus low intake is usually just low intake

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comment on appetite: what the trials say vs what this community says in c/glp1science · 44 points · 5 months ago

Was completely wrong about the gastric emptying story in a thread here two years ago. Someone corrected me with a citation and I have not made that mistake since.

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comment on three years of fatigue threads, summarised so you do not have to read them in c/sideeffects · 38 points · 5 months ago

Nobody warned me about sulphur burps and I would have liked the warning. It was not dangerous, it was just deeply unpleasant and completely unexpected.

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comment on small win: contraception stopped being a problem at week 41 in c/glp1women · 1 points · 7 months ago

Telogen shedding follows a period of significant weight change rather than a specific compound, and it resolves.

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comment on [Meta] the Zepbound rule is doing its job and people should stop complaining in c/tirzepatide · 270 points · 7 months ago

SURMOUNT-1 landed around 21% at 72 weeks on the top arm

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comment on reading pharmacology threads from 2024 and half of it aged badly in c/glp1science · 181 points · 7 months ago

Was completely wrong about the gastric emptying story in a thread here two years ago. Someone corrected me with a citation and I have not made that mistake since.

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comment on is it normal to get injection-site soreness at week 44 in c/sideeffects · 127 points · 8 months ago

Cosigning the fibre and water answer. Unglamorous, free, and it fixed it for me inside a week.

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comment on three years of 15mg threads, summarised so you do not have to read them in c/tirzepatide · 63 points · 8 months ago

Push back: "gentler than sema" is a population statement. Plenty of people on this board have the opposite experience and they are not doing it wrong.

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comment on three years of 15mg threads, summarised so you do not have to read them in c/tirzepatide · 73 points · 8 months ago

Pen or vial? The step sizes available differ and it changes this answer.

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comment on [PSA] gastric emptying is not what most of this community thinks it is in c/glp1science · 6 points · 9 months ago

GIP is the arm people argue about because the biology is genuinely unsettled

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comment on switched from 0.5mg to 1.7mg and injection-site soreness got better, not worse in c/sideeffects · 179 points · 9 months ago

Nobody warned me about constipation and I would have liked the warning. It was not dangerous, it was just deeply unpleasant and completely unexpected.

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comment on the CGM question that gets asked weekly, answered properly in c/t2dglp1 · 7 points · 9 months ago

Are you quoting a diabetes trial or an obesity one?

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comment on why does nobody talk about mechanism in c/glp1science · 43 points · 10 months ago

Not convinced by the linearity assumption. Dose-response in this class is not linear and the trials show it.

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comment on is it normal to get constipation at week 87 in c/tirzepatide · 5 points · 11 months ago

Right. And the sema-to-tirz "conversion" people post is invented. There is no published equivalence.

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comment on sulphur burps: what the trials say vs what this community says in c/sideeffects · 70 points · 11 months ago

Careful with the supplement recommendation. There is no evidence for it here and the mechanism you are proposing does not hold.

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