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u/ignacio_vanhecke

Contributes reviews on supplier material. Based in Tilburg.

member · joined 17 Aug 2025

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Overview — page 2 of 3

comment on [Results] 26 weeks, 9kg, and dual agonist was the hard part in c/tirzepatide · 0 points · 4 months ago

The four-week interval in the label is a minimum. Nothing about the pharmacology requires you to step on schedule, and the trials stepped on a calendar because trials have to.

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comment on does personal import actually matter or is it forum lore at this point in c/customs · 3 points · 5 months ago

Small fix — those rules apply to commercial import. Personal import is governed separately and more narrowly.

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comment on [Question] EMS — what am I missing here in c/intlshipping · 6 points · 5 months ago

ask which lines are actually held in the regional warehouse

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comment on help me understand shipping, I have read the wiki twice in c/intlshipping · 0 points · 5 months ago

Regional stock replaces an international lane with a domestic one. That is a structural change to the distribution, not a marginal improvement, and it is why the warehouse question matters more than the carrier question.

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comment on [Discussion] we are measuring PBS at the wrong time and calling it noise in c/glp1aus · 14 points · 6 months ago

Australia and New Zealand have different regulators, different funding bodies and different arrangements. An answer for one is not evidence about the other.

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comment on [Question] reimbursement — what am I missing here in c/glp1eu · 11 points · 6 months ago

Pack sizes and presentations differ between member states, so a headline price is not comparable until it is normalised to a common quantity.

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comment on [Meta] the import rule is doing its job and people should stop complaining in c/customs · 8 points · 6 months ago

Not convinced. What you describe is an administrative hold, and treating it as a seizure changes what you should do next.

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comment on personal import — 8 things I got wrong before I got it right in c/customs · 1 points · 7 months ago

Yes. Nothing here is legal advice and the good posts on this board say so themselves.

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comment on [Meta] proposal — a flair for chromatogram posts in c/hplc · 3 points · 7 months ago

Gave the same trace to two people I trust and got two integrations about a point apart. That was the most educational afternoon I have had here.

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comment on [Meta] proposal — a flair for chromatogram posts in c/hplc · 10 points · 7 months ago

Mass spectrometry answers identity. UV purity answers relative quantity under the run conditions. A document with one and not the other is answering half the question, and the half it answers should be stated.

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comment on tirzepatide — 9 things I got wrong before I got it right in c/tirzepatide · 6 points · 7 months ago

It is a dual GIP and GLP-1 receptor agonist, and the GIP arm is the part that has no equivalent in the semaglutide threads. That is why the side-effect profile reads differently rather than just milder.

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comment on [Results] 67 weeks, 10kg, and dual agonist was the hard part in c/tirzepatide · 13 points · 7 months ago

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

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comment on gradient is the most under-discussed thing on this board in c/hplc · 13 points · 8 months ago

Gave the same trace to two people I trust and got two integrations about a point apart. That was the most educational afternoon I have had here.

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comment on help me understand shortage list, I have read the wiki twice in c/compounding · 26 points · 8 months ago

I would not read the price difference as a quality signal. Most of it is the consultation model, not the vial.

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comment on three years of 15mg threads, summarised so you do not have to read them in c/tirzepatide · 78 points · 8 months ago

Does nausea follow the day after the shot, or is it spread across the week?

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comment on three years of 15mg threads, summarised so you do not have to read them in c/tirzepatide · 102 points · 8 months ago

What is the waist doing? That is usually the number still moving during a scale stall.

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comment on three years of 15mg threads, summarised so you do not have to read them in c/tirzepatide · 83 points · 8 months ago

Week 67 was the first time the scale moved after a five-week stall. I changed nothing in that window.

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comment on reading gradient threads from 2024 and half of it aged badly in c/hplc · 119 points · 8 months ago

Small fix — 214nm, not 210. It matters for the comparison you are making with the other run.

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comment on [PSA] prescription is not what most of this community thinks it is in c/glp1eu · 1 points · 8 months ago

The variation between pharmacies inside my own country was larger than the variation I had been chasing across the border.

Disagreeing with this bit: that criterion belongs to one member state and is being quoted as general.

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comment on someone explain compounding to me like I have not read a paper in years in c/compounding · 1 points · 8 months ago

Right, and the concentration genuinely can differ from the branded product, which breaks people’s arithmetic.

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comment on help me understand appeal, I have read the wiki twice in c/insurancefights · 86 points · 9 months ago

Employer plan or individual plan?

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comment on [Question] how do you actually verify carrier in c/intlshipping · 19 points · 9 months ago

summer and winter are different lanes with the same name

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comment on how much of what we believe about integration actually comes from LC-MS threads in c/hplc · 84 points · 9 months ago

What wavelength, and what was the gradient?

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comment on the lane question that gets asked weekly, answered properly in c/intlshipping · 1 points · 9 months ago

Where did the time actually go — international leg, clearance, or last mile?

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comment on does gradient actually matter or is it forum lore at this point in c/hplc · 18 points · 9 months ago

Careful — you are treating retention time as identity. Two things can co-elute and the trace will not tell you.

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comment on someone explain Zepbound to me like I have not read a paper in years in c/tirzepatide · 976 points · 9 months ago

The distribution matters more than the mean. In the trial population the interquartile spread was wide enough that two honest people can have completely different runs on the same arm.

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comment on [Question] Apotheke — what am I missing here in c/glp1eu · 23 points · 9 months ago

Small fix — those two prices are for different pack sizes, which accounts for most of the gap.

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comment on the pharmacy thing finally clicked for me and I want to write it down in c/glp1eu · 6 points · 10 months ago

keep the prescription and the receipt, both matter for claims

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comment on [Results] 74 weeks, 23kg, and GIP was the hard part in c/tirzepatide · 95 points · 10 months ago

The four-week interval in the label is a minimum. Nothing about the pharmacology requires you to step on schedule, and the trials stepped on a calendar because trials have to.

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comment on Sweden: external review, and what it actually costs here in c/insurancefights · 0 points · 10 months ago

Correction: that is a formulary exclusion, not a prior authorisation denial. Different form, different route, different deadline.

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comment on [Lab] HJ cagri — Janoshik came back 97.5% against a claimed 97.0% in c/hplc · 447 points · 11 months ago

Chased a ghost peak for three weeks. It was the plumbing. It is always the plumbing.

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comment on [Lab] HJ cagri — Janoshik came back 97.5% against a claimed 97.0% in c/hplc · 281 points · 11 months ago

HJ sent me the column, the gradient and the theoretical mass without being asked. That is a short list and they are on it.

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comment on [Meta] proposal — a flair for gradient posts in c/hplc · -1 points · 11 months ago

Carryover from a previous high-concentration injection looks exactly like a small impurity. The blank injection is four minutes and it removes the ambiguity entirely.

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comment on someone explain telehealth to me like I have not read a paper in years in c/compounding · 12 points · 1 year ago

Switched between two compounded preparations and the concentration on the label was different. Redid the arithmetic on paper before drawing anything.

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comment on help me understand Australia, I have read the wiki twice in c/glp1aus · 55 points · 1 year ago

Personal importation provisions exist, are narrow, and carry conditions. Any summary of them here should be checked against the current official wording rather than a forum post.

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comment on the DHL thing finally clicked for me and I want to write it down in c/intlshipping · 7 points · 1 year ago

the median is more useful than the fastest anybody ever got

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comment on [Question] how do you actually verify jurisdiction in c/customs · 32 points · 1 year ago

Same view — the rules where I am changed between one year and the next and nobody announced it.

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