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u/ferran_krastev

Contributes reviews on supplier material. Based in Lublin.

member · joined 15 Jun 2025

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Comments — page 3 of 3

comment on stalled for 11 weeks at 12.5mg and I refuse to panic this time in c/retatrutide · 2 points · 1 year ago

Sent a vial to Medutest out of curiosity. Result was 98.5% against a claimed 98.0%, which is the first independent number I had seen for this compound anywhere.

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comment on [Discussion] UK is doing more work than we give it credit for in c/glp1uk · 16 points · 1 year ago

How long have you been on the list, and from what date?

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comment on [Lab] split one vial across Janoshik and Medutest — 98.7% and 98.3% in c/hplc · 21 points · 1 year ago

Not convinced by that integration. Dropping the baseline there absorbs part of the shoulder into the main peak.

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comment on my ferritin moved and I cannot work out whether FFMI is why in c/glp1muscle · 13 points · 1 year ago

Nothing here is a training or nutrition prescription. Targets and programmes are matters for somebody who knows your history and your training background.

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comment on the nausea thing finally clicked for me and I want to write it down in c/sideeffects · 75 points · 1 year ago

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

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comment on the constipation question that gets asked weekly, answered properly in c/sideeffects · 1 points · 1 year ago

How long after a step up did this start?

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comment on why does nobody talk about gradient in c/hplc · 20 points · 1 year ago

Not convinced by that integration. Dropping the baseline there absorbs part of the shoulder into the main peak.

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comment on [Discussion] LC-MS is doing more work than we give it credit for in c/hplc · 77 points · 1 year ago

area percent is relative to what the detector saw and nothing else

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comment on [Meta] the tier 3 rule is doing its job and people should stop complaining in c/glp1uk · 150 points · 1 year ago

Not convinced — the US threads are a different system entirely and importing their advice here does real harm.

emil_okwuosa is right that the two routes are separate. A private prescription does not move you up the list.

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comment on [Lab] MKM cagri — Medutest came back 97.2% against a claimed 97.0% in c/hplc · 77 points · 1 year 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 LC-MS to me like I have not read a paper in years in c/hplc · 6 points · 1 year ago

ghost peak, check the plumbing first, it is always the plumbing

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comment on [Discussion] we are measuring private prescription at the wrong time and calling it noise in c/glp1uk · 58 points · 1 year ago

the Irish scheme cap is the single most useful fact in this board

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comment on [Discussion] nausea is doing more work than we give it credit for in c/sideeffects · 70 points · 1 year ago

A symptom that begins the day after the shot and fades by day four tracks the exposure curve. One that appears at random in week 72 probably does not, and that is worth saying to a clinician rather than to us.

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comment on [Results] 15 weeks on 0.25mg, full numbers, ask me anything boring in c/tapering · 24 points · 1 year ago

Appetite is the proximal effect and weight is the lagging integrated outcome, which is why watching appetite gives you an earlier and more honest signal.

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comment on what would you tell week-1 you about gallbladder in c/sideeffects · 103 points · 1 year ago

hair shedding follows the weight loss, not the drug, and it stops

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comment on [Discussion] can we stop arguing about MHRA until somebody posts a number in c/glp1uk · 0 points · 1 year ago

That is Scotland’s arrangement and the post is asking about England.

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comment on how much of what we believe about HPLC actually comes from method development threads in c/hplc · 25 points · 1 year ago

Do you have the mass, or only the UV trace?

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comment on [Discussion] we are measuring regain at the wrong time and calling it noise in c/tapering · -38 points · 1 year ago

Is this a pause or a stop? They are different plans.

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comment on how much of what we believe about import actually comes from customs threads in c/customs · 0 points · 1 year ago

Have you asked the supplier what they declare?

Agreed — read the notice before deciding what has happened. Most of the panic here is misclassification.

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comment on genuine question about UK that I am slightly embarrassed to ask in c/glp1uk · 17 points · 1 year ago

Concentrations can differ between products and between pharmacies. Switching mid-titration means redoing the arithmetic rather than carrying the old unit count across.

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comment on reading chromatogram threads from 2024 and half of it aged badly in c/hplc · 10 points · 1 year ago

report the method or do not report the number

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comment on [Discussion] the constipation advice in here is 2 years out of date in c/sideeffects · 267 points · 1 year ago

Reflux was the one that got me.

Agreed, with the caveat that "usually settles" is not "always settles" and the exceptions should still get asked about properly.

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comment on my TSH moved and I cannot work out whether sulphur burps are why in c/sideeffects · 354 points · 2 years 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 discontinuation — my 15-week log, condensed into one table in c/tapering · 1 points · 2 years ago

A written baseline — dose, date, weight, waist, and how appetite feels — taken before any change is what makes the following months interpretable rath

osman_eriksen is right that regain is a documented outcome rather than a character verdict.

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comment on stalled for 7 weeks at 10mg and I refuse to panic this time in c/retatrutide · 4 points · 2 years ago

Yes — the comparison threads are apples to oranges and they generate more heat than anything else here.

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comment on what changed for me between month 8 and month 16 in c/retatrutide · 115 points · 2 years ago

Correction: TRIUMPH is the phase 3 programme. The number you are quoting is from the phase 2 readout, which is a different trial.

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comment on [Meta] proposal — a flair for pharmacy posts in c/glp1uk · 930 points · 2 years ago

In England, specialist weight management services are commissioned locally, so eligibility criteria and waiting times differ by ICB. There is no single national threshold to quote.

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comment on integration is the most under-discussed thing on this board in c/hplc · 0 points · 2 years ago

That is area percent, not mass percent. The trace cannot give you the second one.

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comment on reading pricing threads from 2024 and half of it aged badly in c/glp1uk · 130 points · 2 years ago

Agreed. The ICB variation is the thing that makes national advice useless here.

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comment on retatrutide — my 21-week log, condensed into one table in c/retatrutide · 4 points · 2 years ago

Is that the 48-week figure or an earlier readout?

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comment on retatrutide — my 21-week log, condensed into one table in c/retatrutide · 7 points · 2 years ago

The phase 2 readout ran to 48 weeks in a few hundred participants with a slow escalation.

Disagree with this specific inference. A 48-week readout does not tell you the shape of the curve after it.

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comment on what changed for me between month 8 and month 12 in c/sideeffects · 3 points · 2 years ago

That reads like advice, and none of us can give it. Describe what you did, not what somebody else should do.

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comment on what would you tell week-1 you about dose escalation in c/retatrutide · 42 points · 2 years ago

Same read. The energy-expenditure mechanism is the interesting bit and it is not established in humans at scale.

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comment on retatrutide: what the trials say vs what this community says in c/retatrutide · 34 points · 2 years ago

Nothing containing this compound is approved anywhere. Research-use-only material is not approved for human use, and that is a statement of fact rather than a disclaimer.

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comment on small win: fatigue stopped being a problem at week 82 in c/sideeffects · 915 points · 2 years 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 is it normal to get sulphur burps at week 24 in c/retatrutide · 3 points · 2 years ago

the TRIUMPH programme is still running, so anything definitive is premature

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comment on how much of what we believe about HPLC actually comes from gradient threads in c/hplc · 1 points · 2 years ago

reproducibility beats resolution if you only get one of them

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comment on how much of what we believe about HPLC actually comes from gradient threads in c/hplc · 0 points · 2 years ago

Not convinced by that integration.

yara_boateng is right — the integration choice is a decision and it should be stated alongside the result.

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comment on [Discussion] can we stop arguing about HPLC until somebody posts a number in c/hplc · 49 points · 2 years ago

Ran a blank after a high-concentration injection and found the carryover I had been calling an impurity.

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comment on unpopular opinion: most of what gets said here about glucagon is guesswork in c/retatrutide · 107 points · 2 years ago

Which phase 2 arm are you quoting, and at what week?

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