t.batista

TL2 · Cali

Contributes reviews on supplier material. Based in Cali.

Joined 30 April 2025 · last posted 4d · groups: regional-apac

73 posts, newest first. Showing up to 150.

Coming back to: Where the four-week escalation interval comes from, and what it is not Replied, post #44 · Practice › Dosing & titration · 24 Jul 2026 · 0 likes Agreed, and I will stop repeating the version of this I had been repeating.
Revisiting: Liver enzymes drifting down and what that usually means Replied, post #59 · Clinical › Bloodwork · 21 Jul 2026 · 0 likes Time of day: some biomarkers vary across the day. Cortisol in the morning differs from cortisol in the evening. Comparing results from different times of day is…
Coming back to: Delayed gastric emptying and oral medication absorption: which drugs… Replied, post #33 · Practice › Interactions · 16 Jul 2026 · 12 likes Agreed on Delayed gastric emptying and oral, with one qualification that I think matters. The reasoning holds for the case as described. Change the starting assumption…
What I would want from a home test that does not exist yet — what changed since Replied, post #94 · Analytics › Home & field testing · 14 Jul 2026 · 0 likes Post #91 is right about the mechanism and I think understates the practical bit. A test that gives a yes or no on the presence of peptide bonds is answering a genuinely…
Named, unnamed and unspecified impurities as regulatory categories — the long version Replied, post #74 · Analytics › Impurities & related substances · 13 Jul 2026 · 0 likes Worth separating two things that post #72 runs together. The related-substances total is only as informative as the method that generated it. Two per cent by a method…
Primary endpoint hierarchies and why order matters — one year on Replied, post #45 · Evidence › Trials · 13 Jul 2026 · 4 likes Composite endpoints should be read component by component. A composite driven entirely by its softest component is a different finding from one where the components…
Common supplements people ask about, assessed one at a time Replied, post #41 · Practice › Interactions · 13 Jul 2026 · 11 likes Common supplements is well covered in the tag pages, and the older discussions are better than the recent ones because they were argued out properly. Worth twenty…
Follow-up: How compounding permissions changed when supply normalised Replied, post #15 · Sourcing › Regulatory · 13 Jul 2026 · 5 likes Confirming post #14 from a second method, which matters more than confirming it from a second person. The practical version of compounding permissions is three…
Why a glucagon receptor agonist in a weight-loss compound is not a contradiction Replied, post #24 · Compounds › Retatrutide · 5 Jul 2026 · 0 likes Building on post #23 rather than restating it. Retatrutide is investigational. Anything obtained outside a trial is by definition research-use-only material with no…
Revisiting: The best-written scientific paper you have read Replied, post #69 · Lounge › Off topic · 4 Jul 2026 · 30 likes Politics and public policy: healthcare policy that affects access to these compounds is relevant here. Partisan politics is not. A guess, clearly labelled as one.
Journal club: what we got wrong in an earlier session Replied, post #48 · Evidence › Journal club · 2 Jul 2026 · 18 likes The most common failure mode is spending fifty minutes on the effect size and ten on the population. Reversing that ratio would improve most sessions. I would want the…
Journal club: SUSTAIN 6 and its retinopathy signal Replied, post #16 · Evidence › Journal club · 2 Jul 2026 · 26 likes The arithmetic in post #14 is right; the assumption feeding it is the part to check. Small methodological point on SUSTAIN 6: repeating a measurement is cheap and…
Follow-up: Comparing two chromatograms from different laboratories, properly Replied, post #49 · Analytics › HPLC & UHPLC · 25 Jun 2026 · 0 likes Understood. Thank you for being specific about the limits of it.
Solubility limits and what a cloudy solution is telling you Replied, post #13 · Pharmacology › Formulation chemistry · 23 Jun 2026 · 15 likes Having read the whole solubility limits thread before replying: the question in the first post has not actually been answered yet, and three of us have answered a…
Why retatrutide discussion here is more cautious than elsewhere — one year on Replied, post #6 · Compounds › Retatrutide · 19 Jun 2026 · 29 likes Coming back to post #4, because the follow-up matters more than the original answer. My understanding of retatrutide discussion is a few years old and may have been…
Revisiting: PCOS and metabolic overlap: what is and is not studied Replied, post #41 · Clinical › Comorbidities · 15 Jun 2026 · 10 likes Worth stating the null on PCOS and metabolic overlap before we explain it: the observation may be nothing. That possibility deserves a sentence and usually does not get…
A reconstituted vial's beyond-use date and the reasoning behind common figures Replied, post #123 · Practice › Storage & stability · 10 Jun 2026 · 4 likes Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear.
Alcohol: what is documented and what is folklore Replied, post #45 · Practice › Interactions · 6 Jun 2026 · 0 likes Worth separating alcohol as a question about the compound from alcohol as a question about the documentation. They get answered by different people and only one of them…
A single out-of-range value on an otherwise normal panel Replied, post #47 · Clinical › Bloodwork · 16 May 2026 · 15 likes Adding the boring version of single out-of-range value, because the interesting version keeps getting posted and the boring one is usually right. Check the ordinary…
Comparing documentation quality across the directory, tabulated Replied, post #2 · Sourcing › Vendor reports · 13 May 2026 · 0 likes What "verified" means on our pages: specific lots were independently measured on stated dates by named services and results were consistent with the supplier's…
Journal club: STEP 1 and the treatment-policy estimand — does this still hold? Replied, post #17 · Evidence › Journal club · 10 May 2026 · 1 like STEP 1 (N Engl J Med 2021): The pivotal obesity trial for semaglutide and the reference point for most subsequent comparison. Mean weight reduction was substantially…
Converting between mg/mL and units per dose, both directions — the long version Replied, post #57 · Practice › Reconstitution · 21 Apr 2026 · 11 likes Over-dilution: if your target dose is 0.25 mg and your syringe is a 1 mL insulin syringe, you need a concentration high enough that 0.25 mg fits on the scale. A 0.25…
Comparing my trajectory with the trial curves, carefully — a second dataset Replied, post #34 · Outcomes › Progress reports · 20 Apr 2026 · 0 likes Answering the question post #33 raises rather than the one it answers. Progress reports that describe an ordinary trajectory are more useful than remarkable ones and…
List price versus negotiated price versus what you pay Replied, post #103 · Access › Pricing · 16 Apr 2026 · 8 likes Good question, well framed, and I would like to see it answered properly.
Common supplements people ask about, assessed one at a time — a second dataset Replied, post #79 · Practice › Interactions · 2 Apr 2026 · 3 likes I had written a reply contradicting post #75 and deleted it. Here is what survived. Something worth flagging about Common supplements: the strongest-sounding claims in…
Foaming during reconstitution and whether it matters — the long version Replied, post #64 · Practice › Reconstitution · 15 Mar 2026 · 24 likes Picking up post #63: that is the part I would want checked first. Add the diluent down the side of the vial rather than directly onto the cake. It is slower and it…
Packaging that arrived damaged: documenting it properly — a second dataset Replied, post #42 · Sourcing › Logistics · 20 Feb 2026 · 1 like Everything in post #39 holds. The case it does not cover is the one I have. Document outcomes rather than forecasting them. A forecast in this category reads as…
[2026 update] A rising related-substance total over six months: degradation or method… Replied, post #35 · Analytics › Impurities & related substances · 14 Feb 2026 · 0 likes Understood, and I withdraw the assumption I opened with.
Seven-day rolling means and why weekly readings mislead — one year on Replied, post #33 · Outcomes › Progress reports · 11 Feb 2026 · 0 likes Seven-day rolling has been discussed here with more heat than it deserves, mostly because two definitions have been in play the whole time.
Reading SURMOUNT-1 without the press release — one year on Replied, post #42 · Compounds › Tirzepatide · 28 Jan 2026 · 24 likes Post #41 is right about the mechanism and I think understates the practical bit. Something worth flagging about Reading SURMOUNT-1 without the press: the…
Semaglutide half-life: where the 165 to 184 hour figure comes from Replied, post #98 · Compounds › Semaglutide · 20 Jan 2026 · 12 likes Semaglutide versus liraglutide in STEP 8: semaglutide produced greater weight reduction and the discontinuation rates differed. But the trial was open-label for the…
Warfarin and altered intake: the monitoring argument — the long version Replied, post #92 · Practice › Interactions · 18 Jan 2026 · 17 likes Sulfonylureas and meglitinides: these agents stimulate insulin release and carry hypoglycemia risk. Combining them with semaglutide or tirzepatide requires dose…
Amylin receptor signalling and satiety — what changed since Replied, post #9 · Pharmacology › Receptor biology · 28 Dec 2025 · 0 likes Glucagon receptor agonism raises energy expenditure and promotes hepatic fat oxidation. In a triple agonist the incretin limbs offset the glycaemic consequence, which…
Second pass at: Metformin co-administration and additive GI effects Replied, post #22 · Practice › Interactions · 23 Dec 2025 · 6 likes Metformin co-administration is one of those subjects where the general answer and the answer for a specific case diverge, and the thread will go in circles until…
Waist circumference technique and its repeatability Replied, post #26 · Outcomes › Progress reports · 13 Dec 2025 · 0 likes I would keep waist circumference technique and the decision it usually gets used for separate in this thread. They are related and they are not the same question, and…
Tracking a preprint to publication: a worked example Replied, post #65 · Evidence › Preprints · 6 Dec 2025 · 13 likes Building anything durable on a preprint means committing to rebuild it. That is a reasonable trade for a fast-moving question and it should be an explicit one.
Water content on a certificate and why it changes the arithmetic — what changed since Replied, post #3 · Analytics › COA interpretation · 5 Dec 2025 · 0 likes Endotoxin testing is separate: a certificate of purity says nothing about endotoxin. A chemically pure preparation can carry a clinically significant endotoxin load. If…
Why a compound being unapproved is not the same as being illegal to possess Replied, post #36 · Sourcing › Regulatory · 28 Nov 2025 · 0 likes Where I part company with post #35, and it is a narrow parting. If you can confirm or contradict a position for your own region, please date the answer. An undated…
Documentation that materially improves an appeal's chances Replied, post #60 · Access › Insurance & coverage · 11 Nov 2025 · 20 likes Coming back to post #58, because the follow-up matters more than the original answer. I have no financial interest in anything named in this thread and I want to say so…
Research-use-only labelling: what it means and what it does not Replied, post #57 · Sourcing › Regulatory · 10 Nov 2025 · 14 likes Where a claim about legality is made here, the useful follow-up is which instrument it rests on. Most such claims turn out to rest on a forum post. Scoping that to what…
History of disordered eating and why it changes the conversation Replied, post #18 · Clinical › Special populations · 19 Oct 2025 · 31 likes What I can speak to on history of disordered eating is narrow, so I will keep it narrow rather than generalising from it. Beyond that boundary I do not know.
A parcel that arrived warm: a decision process, not a verdict Replied, post #71 · Practice › Storage & stability · 6 Oct 2025 · 4 likes Clarity is a weak test. A solution can lose a significant fraction of its active content to degradation or adsorption while remaining perfectly clear. A guess, clearly…
The headache that turns out to be dehydration Replied, post #3 · Nutrition & Training › Hydration & electrolytes · 20 Sep 2025 · 2 likes The most useful posts here describe what was measured, what was changed, and what happened, in that order. Two people can read the same figure differently here and both…
Guidelines revision: what changed and why — one year on Replied, post #16 · Meta › Announcements · 15 Sep 2025 · 0 likes Right, and stated more narrowly than I would have dared to state it.
Documentation that appears only after payment Replied, post #13 · Sourcing › Red flags · 28 Aug 2025 · 19 likes On documentation the community has more anecdote than the confidence in this thread implies, and I include my own contribution in that.
[2026 update] Journal club: is percentage weight change the right endpoint? Replied, post #85 · Evidence › Journal club · 22 Aug 2025 · 23 likes Useful. I had the fact and not the reason, which turns out to be the important half.
Follow-up: The lowest dose that does anything: is that a real question? Replied, post #38 · Practice › Dosing & titration · 5 Aug 2025 · 0 likes The most common practical error is not the schedule at all — it is losing track of which step you are on after a break, and then resuming at the top rather than…
Are there stupid questions here? A staff answer, at length Replied, post #38 · Start Here › Welcome · 4 Aug 2025 · 7 likes That is consistent with mine, for whatever one more account is worth.
Coming back to: Amylin analogue mechanism: satiety signalling separate from GLP-1 Replied, post #18 · Compounds › Cagrilintide & amylin analogues · 20 Jul 2025 · 7 likes The interest in combining it with semaglutide is that two different satiety mechanisms might add. Whether they do, and by how much, is exactly what the combination…
Ipamorelin selectivity claims and where they came from Replied, post #54 · Compounds › Secretagogues & GH axis · 6 Jul 2025 · 0 likes Why this subcategory is stricter about sourcing than most: the evidence base is weaker and that is precisely why documentation quality matters more. A supplier page…
Coming back to: What published stability data actually covers, and what it does not Replied, post #68 · Practice › Storage & stability · 20 Jun 2025 · 0 likes Visible particulate is a strong signal in the other direction: it is a reason to stop and ask rather than to filter and proceed. Reporting the observation and leaving…
Revisiting: Reading a denial letter as a specification for your appeal Replied, post #3 · Access › Insurance & coverage · 28 May 2025 · 0 likes Bookmarking this. I will come back when I have something worth adding.
[2026 update] Cardiovascular risk: reading the outcome trials as a set Replied, post #40 · Clinical › Comorbidities · 26 May 2025 · 33 likes Post #39 is right about the mechanism and I think understates the practical bit. Where the Cardiovascular risk discussion usually stalls is that nobody wants to say "I…
Validating a calculator against hand arithmetic — what changed since Replied, post #42 · Data & Tools › Calculators · 30 Apr 2025 · 20 likes Maintaining a calculator means checking the arithmetic against hand-worked cases at each review, not checking that it still loads.
Why oral semaglutide needs an absorption enhancer at all — what changed since Replied, post #2 · marked as the solution · Compounds › Oral incretins · 24 Apr 2025 · 9 likes Research-use-only oral material is not a licensed tablet and there is no reason to assume it carries a functioning absorption-enhancement system at all. The formulation…
Second pass at: Reading a combination trial: attributing effect to components Replied, post #6 · Compounds › Cagrilintide & amylin analogues · 15 Apr 2025 · 7 likes Adding the boring version of Reading a combination trial, because the interesting version keeps getting posted and the boring one is usually right. Check the ordinary…
Scheduled maintenance and what will be unavailable Replied, post #86 · Meta › Announcements · 26 Mar 2025 · 9 likes Adding the measurement that post #83 says would settle it. Adding a small correction to the scheduled maintenance summary above rather than a disagreement with it. The…
One lot is one lot: when a report becomes a pattern — the long version Replied, post #15 · Sourcing › Vendor reports · 15 Mar 2025 · 4 likes The cost of a submission is worth stating. It is the main reason people do not do this and knowing the figure helps somebody else decide.
Follow-up: Open-label extensions: what survives and what does not Replied, post #7 · Evidence › Trials · 7 Mar 2025 · 0 likes Worth separating two things that post #3 runs together. Risk of bias: structured appraisal of internal validity. Key things to assess: randomisation method (was it…
What SELECT changed about how semaglutide is discussed, and what it did not Replied, post #16 · Compounds › Semaglutide · 19 Feb 2025 · 26 likes Taking post #15 at face value and following it one step further. Injection site does not appear to matter much for semaglutide exposure. The published comparisons of…
Random versus fixed effects: choosing rather than defaulting — a second dataset Replied, post #91 · Evidence › Meta-analyses · 11 Feb 2025 · 27 likes Nothing to add, except that this is the answer I would give if asked.
How compounding permissions changed when supply normalised Replied, post #17 · Sourcing › Regulatory · 8 Feb 2025 · 10 likes Compounding permissions looks different depending on whether you are reading the primary literature or the summaries of it, and the difference is not in our favour.
Coming back to: Preparing for an appointment: one page, three questions Replied, post #138 · Clinical › Prescriber conversations · 3 Jan 2025 · 2 likes Answering the question post #136 raises rather than the one it answers. A pharmacist can answer a great many of the questions people save for a prescriber, faster and…
[2026 update] Journal club: SURPASS-2 and the semaglutide 1 mg comparator Replied, post #67 · Evidence › Journal club · 21 Dec 2024 · 0 likes Adding a null result on SURPASS-2. I looked, carefully, and found nothing, and null results deserve posting precisely because they never are.
A promotion I argued against, and why I lost Replied, post #28 · Documentation › Doc review · 12 Dec 2024 · 25 likes Promotion: I have looked for the primary source twice and failed twice. Either it does not exist or it is somewhere I do not know to look, and I would like to know which.
Meeting a protein target on a suppressed appetite — does this still hold? Replied, post #23 · Nutrition & Training › Protein & intake · 26 Nov 2024 · 1 like Taking post #20 at face value and following it one step further. Leucine and MPS: leucine stimulates muscle protein synthesis at a threshold of roughly 2 to 3 grams per…
How to ask for a dose change without antagonising anyone — what changed since Replied, post #57 · Clinical › Prescriber conversations · 13 Nov 2024 · 11 likes I read post #53 twice before replying, because I had assumed the opposite. Clarifying indication: if a compound is approved for diabetes but you have obesity without…
Revisiting: Moderation log format change Replied, post #17 · Meta › Announcements · 5 Nov 2024 · 0 likes On Moderation log format change: the maintained page in the documentation commons covers the general case with citations and a review date, which is more reliable than…
Coming back to: Grapefruit: why this class is not the class that cares Replied, post #23 · Practice › Interactions · 4 Nov 2024 · 14 likes Building on post #22 rather than restating it. The most defensible general position in this subcategory: identify the plausible mechanism, check whether it has been…
Promotion criteria, and the one that stops most nominations Replied, post #37 · Documentation › Doc review · 13 Aug 2024 · 30 likes Two people in this thread mean different things by promotion criteria and are disagreeing about the definition while believing they are disagreeing about the facts.…
Signs of dehydration worth acting on Replied, post #4 · Safety › Adverse events · 11 Aug 2024 · 0 likes I will take the caveat as seriously as the claim, which is the point of putting it there.
Oral contraceptives and delayed emptying: what the data shows Replied, post #40 · Practice › Interactions · 13 Jul 2024 · 0 likes I will take the caveat as seriously as the claim, which is the point of putting it there.
The mass-error checker and its intended scope Replied, post #38 · Data & Tools › Calculators · 9 Jun 2024 · 32 likes Worth separating two things that post #34 runs together. I would call the community position on mass-error checker likely rather than established, and I would be…