Dr_Ravi_Selvarajah
Asking the questions I could not find answers to in 2024.
42kreputation
135answers
26accepted
25questions
1·3·8badges g·s·b
77tags
34Does an inert headspace in the vial change anything?5 answers, accepted · 54k views · lyophilisation, peptide-stability, storage30If a tirzepatide dose is missed by forty-two days, does the ladder reset?3 answers, accepted · 20k views · missed-dose, titration, dosing-math30Is a 98.2% result from Janoshik comparable to 96.8% from Medutest?0 answers · 31k views · purity, batch-testing, reference-standard29Is a chromatogram from QYB sufficient basis to skip independent testing?0 answers · 17k views · coa, batch-testing, harm-reduction29My ecnoglutide vial sat at 37 °C for five days — is testing worth it before use?5 answers · 30k views · cold-chain, peptide-stability, batch-testing26Is a GLP-1 receptor agonist at 1 mg/mL stable enough for eight weeks of multi-withdrawal use?0 answers · 35k views · peptide-stability, bacteriostatic-water, shelf-life25What is the arithmetic to convert 10 mg in 1 mL into units on a U-100 scale?5 answers · 21k views · dosing-math, insulin-syringe, reconstitution25What is the arithmetic to convert 4 mg in 3 mL into units on a U-100 scale?5 answers, accepted · 9.7k views · dosing-math, insulin-syringe, reconstitution24Does deamidation of semaglutide at 2–8 °C show up as a loss of content or of purity?5 answers, accepted · 14k views · peptide-stability, content-assay, purity21What happens to mazdutide after six weeks at 25 °C in solution?0 answers · 3.9k views · peptide-stability, storage, shelf-life20Does hydrolysis dominate for orforglipron held at 40 °C?3 answers, accepted · 10k views · peptide-stability, storage, hplc19Does a large published testing history at SWB imply lot consistency?5 answers · 46k views · batch-testing, vendor-vetting, content-assay19Is 5 mg in 3 mL of bacteriostatic water a sensible presentation for oral semaglutide?0 answers · 6.4k views · diluent-volume, reconstitution, dosing-math16Does the FLOW population resemble anyone asking about retatrutide here?5 answers, accepted · 8.8k views · clinical-trials, harm-reduction, semaglutide16Is HbA1c worth drawing at baseline before starting liraglutide?5 answers, accepted · 11k views · bloodwork, harm-reduction, a1c12How many vial-days does a 15 mg vial give at 4 mg/mL on a weekly schedule?3 answers, accepted · 6k views · dosing-math, cost-analysis, diluent-volume10Is ApoB worth drawing at baseline before starting dulaglutide?5 answers, accepted · 9.3k views · bloodwork, harm-reduction, a1c6How do I tell dizziness from an energy deficit on 1,000 kcal a day?5 answers · 16k views · fatigue, nutrition, electrolytes4Is SUSTAIN-6 a fair comparison of dulaglutide against its comparator arm?3 answers · 4.6k views · clinical-trials, semaglutide, tirzepatide3Is a 97.1% result from Medutest comparable to 99.1% from Janoshik?5 answers · 2.4k views · purity, batch-testing, reference-standard2How much of the gross mass of a 20 mg cagrilintide vial is actually peptide?5 answers, accepted · 5.4k views · content-assay, water-content, acetate-content2Is a GLP-1 receptor agonist at 4 mg/mL stable enough for eight weeks of multi-withdrawal use?0 answers · 1.6k views · peptide-stability, bacteriostatic-water, shelf-life2What is the arithmetic to convert 10 mg in 3 mL into units on a U-100 scale?5 answers, accepted · 19k views · dosing-math, insulin-syringe, reconstitution1Is 98.4% a realistic purity ceiling for a GLP-1 receptor agonist given its chain length?4 answers, accepted · 5.7k views · purity, hplc, peptide-mapping1What does a payer actually need to see in a prior-authorisation request?3 answers · 1.5k views · prior-authorization, insurance, t2dm