plunger_stop
Interested in the analytical side, out of my depth in the clinical side.
13kreputation
31answers
3accepted
25questions
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55tags
38What gauge minimises coring through a rubber stopper?5 answers · 22k views · needle-gauge, vial-inspection, sterility34Is HJ worth the price difference against Zhuhai Kerui Biotechnology on measured results?5 answers, accepted · 44k views · vendor-comparison, cost-analysis, batch-testing34Is STEP 3 a fair comparison of a GLP-1 receptor agonist against its comparator arm?5 answers, accepted · 34k views · clinical-trials, semaglutide, tirzepatide32How do I reconcile 98.4% from VendorInvestigate with 98.8% from the supplier?2 answers, accepted · 14k views · purity, batch-testing, coa31What counter-ion should I expect on a WXT mazdutide lot?5 answers, accepted · 34k views · acetate-content, purity, content-assay30What does 96.4% purity on a C18 column actually tell me about an ecnoglutide vial?5 answers, accepted · 29k views · hplc, purity, coa28How many vials from an ERP lot should I send for identity confirmation by mass spectrometry?5 answers · 13k views · batch-testing, coa, cost-analysis22Is there any published stability data for dulaglutide at room temperature?5 answers, accepted · 15k views · peptide-stability, storage, clinical-trials21If a semaglutide dose is missed by twenty-eight days, does the ladder reset?5 answers · 14k views · missed-dose, titration, dosing-math21Why is oral semaglutide bioavailability only about one per cent?5 answers · 9.6k views · oral-glp1, semaglutide, glp1-mechanism20Is a re-test after storage a stability study or a waste of money?0 answers · 20k views · peptide-stability, batch-testing, storage19Can I reconstitute orforglipron at 8 mg/mL and still measure a small dose accurately?2 answers · 13k views · diluent-volume, insulin-syringe, dosing-math19Would you re-test ecnoglutide after twelve weeks at 37 °C, or accept the original certificate?0 answers · 18k views · batch-testing, peptide-stability, coa18Would you re-test dulaglutide after two weeks at minus 80 °C, or accept the original certificate?0 answers · 10k views · batch-testing, peptide-stability, coa17Can I reconstitute ecnoglutide at 3.33 mg/mL and still measure a small dose accurately?4 answers · 9.7k views · diluent-volume, insulin-syringe, dosing-math16Has anyone independently verified a GL Biochem semaglutide batch COA?5 answers, accepted · 22k views · vendor-vetting, coa, batch-testing14How do I read an impurity table on a retatrutide certificate against the 98.2% headline?5 answers · 16k views · purity, coa, hplc14How much protein in grams do I need at 112 kg on 1,000 kcal a day?5 answers, accepted · 13k views · protein-intake, nutrition, lean-mass14Is a 27G needle the right choice for drawing cagrilintide at 6.67 mg/mL?5 answers, accepted · 3.9k views · needle-gauge, injection-technique, dead-space14Is liraglutide at 2.5 mg/mL stable enough for four weeks of multi-withdrawal use?5 answers, accepted · 28k views · peptide-stability, bacteriostatic-water, shelf-life14When does vomiting stop being a tolerability issue and become a clinical one?5 answers · 5.5k views · harm-reduction, vomiting, pancreatitis11What does a purity figure on an SWB report change about how I read it?5 answers · 14k views · coa, batch-testing, vendor-vetting6Is 2–8 °C an acceptable storage condition for lyophilised ecnoglutide?5 answers · 12k views · storage, peptide-stability, shelf-life3How do I check that two WXT lots of a GLP-1 receptor agonist agree on content assay?5 answers, accepted · 2.6k views · batch-testing, content-assay, vendor-vetting2What happens to orforglipron after two weeks at 37 °C in solution?5 answers · 12k views · peptide-stability, storage, shelf-life