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diluent-volume

Page 6 of 13 · 295 questions tagged diluent-volume.

295 questions · sorted by votes · page 6 of 13

21 votes 2 answers11k views
Is 60 mg in 2.5 mL of bacteriostatic water a sensible presentation for liraglutide?

Stated plainly: 60 mg · 2.5 mL · bacteriostatic water · liraglutide. I am trying to build something sustainable rather than something thorough that I will abandon. I…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
bacteriostatic-water
bacteriostatic-water

Water for injection containing roughly 0.9 per cent benzyl alcohol as a bacteriostatic agent. It suppresses growth in a multiple-withdrawal vial;…

149 questions
liraglutide
liraglutide

A once-daily GLP-1 receptor agonist and the compound that established the class. Still relevant for its shorter half-life, its paediatric and…

235 questions
asked by kirsi_lahtinen 25k · 4 months ago
21 votes 5 answers10k views
Is 60 mg in 2.5 mL of bacteriostatic water a sensible presentation for oral semaglutide?

Setup, so nobody has to ask: 60 mg · 2.5 mL · bacteriostatic water · oral semaglutide. I am trying to build something sustainable rather than something thorough that…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
bacteriostatic-water
bacteriostatic-water

Water for injection containing roughly 0.9 per cent benzyl alcohol as a bacteriostatic agent. It suppresses growth in a multiple-withdrawal vial;…

149 questions
oral-glp1
oral-glp1

Oral routes for GLP-1 receptor agonism: peptide formulations rescued by absorption enhancers such as SNAC, and true small molecules that need no…

219 questions
asked by dermot_kiely 12k · 9 months ago
21 votes 5 answers9.5k views
Is 2.5 mg in 2 mL of 0.9% sodium chloride a sensible presentation for cagrilintide?

Concretely: 2.5 mg · 2 mL · 0.9% sodium chloride · cagrilintide. The failure mode I am trying to avoid is making this decision emotionally. I have twelve months in…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
amylin
amylin

Amylin and its analogues, most prominently cagrilintide, as a satiety mechanism orthogonal to incretin signalling. Includes the pharmacology of…

237 questions
asked by coring_risk 27k · 13 months ago
21 votes0 answers5k views
Is 20 mg in 1 mL of bacteriostatic water a sensible presentation for oral semaglutide?

Setup, so nobody has to ask: 20 mg · 1 mL · bacteriostatic water · oral semaglutide. I am trying to build something sustainable rather than something thorough that I…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
bacteriostatic-water
bacteriostatic-water

Water for injection containing roughly 0.9 per cent benzyl alcohol as a bacteriostatic agent. It suppresses growth in a multiple-withdrawal vial;…

149 questions
oral-glp1
oral-glp1

Oral routes for GLP-1 receptor agonism: peptide formulations rescued by absorption enhancers such as SNAC, and true small molecules that need no…

219 questions
asked by kelvin_lam 7.6k · 2 months ago
21 votes 2 answers2.3k views
Is 40 mg in 5 mL of 0.9% sodium chloride a sensible presentation for mazdutide?

Concretely: 40 mg · 5 mL · 0.9% sodium chloride · mazdutide. The failure mode I am trying to avoid is making this decision emotionally. I have twelve months in view…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
mazdutide
mazdutide

A GLP-1 and glucagon receptor dual agonist developed primarily in China, with a distinct dose range and a fast-moving publication record.…

237 questions
asked by tamsin_wray 9.9k · 44 days ago
20 votes4 answers44k views
Is 2.5 mg/mL a sensible working concentration for liraglutide, or should I go lower?

Conditions: 2.5 mg/mL · liraglutide. I would like the axes of comparison first and the recommendation second. I have tried the first option and it works; the question…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
liraglutide
liraglutide

A once-daily GLP-1 receptor agonist and the compound that established the class. Still relevant for its shorter half-life, its paediatric and…

235 questions
asked by ivo_paunovic 16k · 2.3 years ago
20 votes 5 answers31k views
If I reconstitute a 60 mg vial with 5 mL of bacteriostatic water, what concentration do I end up with?

Stated plainly: 60 mg · 5 mL · bacteriostatic water. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
bacteriostatic-water
bacteriostatic-water

Water for injection containing roughly 0.9 per cent benzyl alcohol as a bacteriostatic agent. It suppresses growth in a multiple-withdrawal vial;…

149 questions
asked by swab_and_wait 13k · 19 months ago
20 votes5 answers30k views
Is 4 mg/mL a sensible working concentration for liraglutide, or should I go lower?

Conditions: 4 mg/mL · liraglutide. These are treated as interchangeable and I do not think they are. If both are acceptable I would like to know that, so I can stop…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
liraglutide
liraglutide

A once-daily GLP-1 receptor agonist and the compound that established the class. Still relevant for its shorter half-life, its paediatric and…

235 questions
asked by kirsi_lahtinen 25k · 19 months ago
20 votes0 answers24k views
Is 2.5 mg in 0.5 mL of 0.9% sodium chloride a sensible presentation for cagrilintide?

The case in front of me: 2.5 mg · 0.5 mL · 0.9% sodium chloride · cagrilintide. The failure mode I am trying to avoid is making this decision emotionally. I have…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
amylin
amylin

Amylin and its analogues, most prominently cagrilintide, as a satiety mechanism orthogonal to incretin signalling. Includes the pharmacology of…

237 questions
asked by syringe_ninety 12k · 2.2 years ago
20 votes 5 answers18k views
Is 4 mg/mL a sensible working concentration for a GLP-1 receptor agonist, or should I go lower?

Setup, so nobody has to ask: 4 mg/mL · a GLP-1 receptor agonist. I suspect the honest answer is that it depends, in which case I would like to know on what. Assume I…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
asked by dermot_kiely 12k · 2.2 years ago
20 votes 5 answers15k views
If I reconstitute a 15 mg vial with 2 mL of phosphate-buffered diluent, what concentration do I end up with?

For reference: 15 mg · 2 mL · phosphate-buffered diluent. I would rather understand the derivation than memorise the outcome. Two people I asked gave two answers that…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
asked by RP_C18 105k · 8 months ago
20 votes 5 answers15k views
Can I reconstitute semaglutide at 2 mg/mL and still measure a small dose accurately?

Conditions: semaglutide · 2 mg/mL. The failure mode I am trying to avoid is making this decision emotionally. I have twelve months in view and I would like the plan…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
insulin-syringe
insulin-syringe

U-100 and U-40 insulin syringes as measuring instruments. A U-100 syringe is graduated in insulin units where 100 units equals 1 mL, so one unit…

244 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
semaglutide
semaglutide

A GLP-1 receptor agonist with a fatty-acid-acylated backbone and a roughly one-week half-life, marketed for type 2 diabetes and for weight…

470 questions
asked by ellis_thorne 17k · 5 months ago
20 votes0 answers9.3k views
How many vial-days does a 5 mg vial give at 3.33 mg/mL on a weekly schedule?

Stated plainly: 5 mg · 3.33 mg/mL. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude and it seems…

dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
cost-analysis
cost-analysis

Cost arithmetic done honestly: cost per milligram after dead-space loss, list versus net price, comparing a multi-dose vial to a fixed-dose pen,…

260 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
asked by sample_id 17k · 10 months ago
20 votes0 answers5.9k views
How many vial-days does a 4 mg vial give at 2 mg/mL on a weekly schedule?

For reference: 4 mg · 2 mg/mL. I would rather understand the derivation than memorise the outcome. Two people I asked gave two answers that differ by a factor of ten,…

dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
cost-analysis
cost-analysis

Cost arithmetic done honestly: cost per milligram after dead-space loss, list versus net price, comparing a multi-dose vial to a fixed-dose pen,…

260 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
asked by thermal_mass 13k · 14 months ago
20 votes 5 answers4.6k views
Is 1 mg/mL a sensible working concentration for tirzepatide, or should I go lower?

Concretely: 1 mg/mL · tirzepatide. I would like the axes of comparison first and the recommendation second. I have tried the first option and it works; the question…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
tirzepatide
tirzepatide

A dual GIP and GLP-1 receptor agonist. Questions here cover the SURPASS and SURMOUNT programmes, the practical differences from a pure GLP-1…

370 questions
asked by helena_vidmar 8.5k · 4 months ago
20 votes 5 answers4.5k views
How do I get 25 units out of a vial reconstituted to 2.5 mg/mL without guessing?

Numbers first: 25 units · 2.5 mg/mL. I would like to understand the steps well enough to explain them to someone else. I have access to a refrigerator with a logger…

insulin-syringe
insulin-syringe

U-100 and U-40 insulin syringes as measuring instruments. A U-100 syringe is graduated in insulin units where 100 units equals 1 mL, so one unit…

244 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
asked by low_dead_space 37k · 5 months ago
20 votes 5 answers3.1k views
If I reconstitute a 60 mg vial with 3 mL of bacteriostatic water, what concentration do I end up with?

What I am working with: 60 mg · 3 mL · bacteriostatic water. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
bacteriostatic-water
bacteriostatic-water

Water for injection containing roughly 0.9 per cent benzyl alcohol as a bacteriostatic agent. It suppresses growth in a multiple-withdrawal vial;…

149 questions
asked by colm_dunphy 8.2k · 18 days ago
19 votes5 answers32k views
Is 8 mg in 3 mL of sterile water for injection a sensible presentation for semaglutide?

Numbers first: 8 mg · 3 mL · sterile water for injection · semaglutide. This is a planning question. I know what my options are; I do not know how to weigh them. What…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
sterile-water
sterile-water

Preservative-free sterile water for injection: appropriate for a single-withdrawal presentation, a poor choice for anything you intend to open…

35 questions
semaglutide
semaglutide

A GLP-1 receptor agonist with a fatty-acid-acylated backbone and a roughly one-week half-life, marketed for type 2 diabetes and for weight…

470 questions
asked by lipid_panel_q 36k · 23 months ago
19 votes 5 answers30k views
Can I reconstitute oral semaglutide at 10 mg/mL and still measure a small dose accurately?

The specifics, since they change the answer: oral semaglutide · 10 mg/mL. I am at the decision point and I would rather think it through than improvise. I would…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
insulin-syringe
insulin-syringe

U-100 and U-40 insulin syringes as measuring instruments. A U-100 syringe is graduated in insulin units where 100 units equals 1 mL, so one unit…

244 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
oral-glp1
oral-glp1

Oral routes for GLP-1 receptor agonism: peptide formulations rescued by absorption enhancers such as SNAC, and true small molecules that need no…

219 questions
asked by esben_lykke 84k · 2.0 years ago
19 votes 5 answers24k views
Is 50 mg in 3 mL of phosphate-buffered diluent a sensible presentation for dulaglutide?

The particulars: 50 mg · 3 mL · phosphate-buffered diluent · dulaglutide. I would like to define my thresholds before I have a result, for obvious reasons. I want a…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
dulaglutide
dulaglutide

A once-weekly GLP-1 receptor agonist built on an Fc fusion rather than fatty-acid acylation. Use this tag for questions about the fusion-protein…

200 questions
asked by zeynep_arslan 16k · 23 months ago
19 votes 5 answers23k views
Can I reconstitute orforglipron at 3.33 mg/mL and still measure a small dose accurately?

Stated plainly: orforglipron · 3.33 mg/mL. I am trying to build something sustainable rather than something thorough that I will abandon. I have already decided the…

diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
insulin-syringe
insulin-syringe

U-100 and U-40 insulin syringes as measuring instruments. A U-100 syringe is graduated in insulin units where 100 units equals 1 mL, so one unit…

244 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
orforglipron
orforglipron

A non-peptide, orally bioavailable small-molecule GLP-1 receptor agonist studied in the ATTAIN programme. It is not a peptide, which changes…

219 questions
asked by coring_risk 27k · 11 months ago
19 votes 5 answers19k views
How do I get 8 units out of a vial reconstituted to 20 mg/mL without guessing?

What I am working with: 8 units · 20 mg/mL. Everything I have found on this is either a forum aside or a product page, neither of which I trust. I am comfortable with…

insulin-syringe
insulin-syringe

U-100 and U-40 insulin syringes as measuring instruments. A U-100 syringe is graduated in insulin units where 100 units equals 1 mL, so one unit…

244 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
asked by Dr_Elias_Weiss 25k · 11 months ago
19 votes 3 answers17k views
Is running reconstituted peptide through a 0.22 µm syringe filter worth it, or am I just throwing away product?

I see 0.22 µm PES syringe filters recommended fairly often as a way to "sterilise" a reconstituted vial, and I see them dismissed just as often as pointless theatre.…

sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
endotoxin
endotoxin

Bacterial endotoxin: LAL and kinetic chromogenic methods, how an endotoxin limit is derived from a dose, why endotoxin survives autoclaving, and…

23 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
asked by Dr_Yusuf_Adeyemi 54k · 18 months ago
19 votes5 answers15k views
If I reconstitute a 2 mg vial with 1.5 mL of sterile water for injection, what concentration do I end up with?

Details up front: 2 mg · 1.5 mL · sterile water for injection. This should be a straightforward calculation and I keep getting two different answers. The numbers are…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
diluent-volume
diluent-volume

Choosing how much diluent to add, which is really a question about what you want your measurement resolution to be. Larger volumes buy you…

295 questions
dosing-math
dosing-math

The arithmetic itself: milligrams to millilitres to insulin units, concentration after reconstitution, dose per draw, and vial-days per vial. Show…

764 questions
sterile-water
sterile-water

Preservative-free sterile water for injection: appropriate for a single-withdrawal presentation, a poor choice for anything you intend to open…

35 questions
asked by void_volume 9.5k · 14 months ago