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diluent-volume

Page 9 of 13 · 295 questions tagged diluent-volume.

295 questions · sorted by votes · page 9 of 13

14 votes5 answers4.3k views
How do I get 30 units out of a vial reconstituted to 5 mg/mL without guessing?

Concretely: 30 units · 5 mg/mL. I am trying to do this correctly the first time rather than learn it by getting it wrong. I have already made one mistake here that…

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 pascal_thibault 11k · 2 months ago
13 votes5 answers39k views
Is 10 mg in 5 mL of 0.9% sodium chloride a sensible presentation for cagrilintide?

Conditions: 10 mg · 5 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 lucia_marchetti 19k · 2.3 years ago
13 votes 5 answers33k views
If I reconstitute a 5 mg vial with 2.5 mL of bacteriostatic water, what concentration do I end up with?

What I am working with: 5 mg · 2.5 mL · bacteriostatic water. I have worked this out and I would like someone to find the error, because I suspect there is one. My…

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 nynke_dekker 9.4k · 2.1 years ago
13 votes 5 answers26k views
How many vial-days does a 4 mg vial give at 8 mg/mL on a weekly schedule?

For reference: 4 mg · 8 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 pk_curve 30k · 16 months ago
13 votes4 answers16k views
Is 1 mg/mL a sensible working concentration for cagrilintide, or should I go lower?

What I am working with: 1 mg/mL · cagrilintide. I suspect the honest answer is that it depends, in which case I would like to know on what. Assume I can obtain either…

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 anja_hellstrom 13k · 2.2 years ago
13 votes4 answers7.9k views
How do I work out vial-days from a concentration and a weekly dose?

I keep a written log of every draw with date, volume and syringe type. This should be a straightforward calculation and I keep getting two different answers. The…

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 area_percent 9.9k · 2 months ago
13 votes 5 answers6.9k views
If I reconstitute a 15 mg vial with 5 mL of phosphate-buffered diluent, what concentration do I end up with?

For reference: 15 mg · 5 mL · phosphate-buffered diluent. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an…

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 colm_dunphy 8.2k · 2 months ago
13 votes2 answers6.8k views
Is 8 mg in 5 mL of sterile water for injection a sensible presentation for semaglutide?

Numbers first: 8 mg · 5 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 bea_castellanos 24k · 3 months ago
13 votes5 answers5k views
Can I reconstitute retatrutide at 5 mg/mL and still measure a small dose accurately?

What I am working with: retatrutide · 5 mg/mL. I would like to set this up properly once, rather than adjust it repeatedly. My budget is real but not tight, and my…

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
retatrutide
retatrutide

An investigational GLP-1, GIP and glucagon receptor tri-agonist, studied in the TRIUMPH programme. Not approved anywhere. Use this tag for…

251 questions
asked by petra_hovland 35k · 3 months ago
13 votes 4 answers4.9k views
Can I reconstitute mazdutide at 6.67 mg/mL and still measure a small dose accurately?

Details up front: mazdutide · 6.67 mg/mL. I would rather over-plan the first cycle and simplify later. I am prepared to do the work if someone can tell me which work…

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
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 RP_C18 105k · 8 months ago
12 votes 5 answers27k views
How do I get 25 units out of a vial reconstituted to 10 mg/mL without guessing?

The specifics, since they change the answer: 25 units · 10 mg/mL. I want a method I can write down and repeat, not a rule of thumb. I would rather over-engineer this…

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 ten_mg_vial 31k · 19 months ago
12 votes5 answers23k views
If I reconstitute a 10 mg vial with 5 mL of 0.9% sodium chloride, what concentration do I end up with?

Concretely: 10 mg · 5 mL · 0.9% sodium chloride. I want the working, not the result — I need to be able to redo it with different numbers. I care about the precision…

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 dead_volume 56k · 16 months ago
12 votes 5 answers14k views
How many vial-days does a 20 mg vial give at 6.67 mg/mL on a weekly schedule?

Stated plainly: 20 mg · 6.67 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…

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 mira_sundqvist 7.1k · 6 months ago
12 votes 5 answers12k views
Can I reconstitute ecnoglutide at 2 mg/mL and still measure a small dose accurately?

Concretely: ecnoglutide · 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
ecnoglutide
ecnoglutide

A long-acting GLP-1 receptor agonist with a cAMP-biased signalling profile. A niche tag, mostly used for mechanism questions about biased agonism…

223 questions
asked by tri_gly_ala 24k · 16 months ago
12 votes 5 answers9.9k views
Is 10 mg in 0.5 mL of 0.9% sodium chloride a sensible presentation for a GLP-1 receptor agonist?

The case in front of me: 10 mg · 0.5 mL · 0.9% sodium chloride · a GLP-1 receptor agonist. I want to decide this in advance so that I am not deciding it under…

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 rania_haddad 13k · 4 months ago
12 votes1 answer8.7k views
If I reconstitute a 30 mg vial with 2 mL of sterile water for injection, what concentration do I end up with?

What I have: 30 mg · 2 mL · sterile water for injection. I can do the algebra. I am not confident about the conversion factors. If there is a standard way to lay this…

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 ben_akintola 10k · 8 months ago
12 votes 5 answers5.9k views
Can I reconstitute liraglutide at 4 mg/mL and still measure a small dose accurately?

For reference: liraglutide · 4 mg/mL. I would like to define my thresholds before I have a result, for obvious reasons. I want a plan with explicit stopping rules,…

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
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 rune_thoresen 16k · 3 months ago
12 votes0 answers2.8k views
Is 4 mg/mL a sensible working concentration for oral semaglutide, or should I go lower?

The case in front of me: 4 mg/mL · oral semaglutide. I would like the axes of comparison first and the recommendation second. I have tried the first option and it…

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
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 birk_nordahl 16k · 7 months ago
11 votes 5 answers33k views
Can I reconstitute survodutide at 2 mg/mL and still measure a small dose accurately?

Conditions: survodutide · 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
survodutide
survodutide

A GLP-1 and glucagon receptor dual agonist with a substantial published MASH dataset. Use this tag for its hepatic endpoints, its dose ladder, and…

225 questions
asked by seamus_brady 15k · 2.1 years ago
11 votes5 answers22k views
If I reconstitute a 5 mg vial with 2 mL of bacteriostatic water, what concentration do I end up with?

Setup, so nobody has to ask: 5 mg · 2 mL · bacteriostatic water. I have worked this out and I would like someone to find the error, because I suspect there is one. My…

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 tri_gly_ala 24k · 2.2 years ago
11 votes 5 answers11k views
How many vial-days does a 2 mg vial give at 1 mg/mL on a weekly schedule?

Numbers first: 2 mg · 1 mg/mL. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is what I…

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 otto_brenner 12k · 9 months ago
11 votes 4 answers5.5k views
If I reconstitute a 50 mg vial with 5 mL of phosphate-buffered diluent, what concentration do I end up with?

For reference: 50 mg · 5 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 dermot_kiely 12k · 9 months ago
11 votes 5 answers5.4k views
How many vial-days does a 30 mg vial give at 10 mg/mL on a weekly schedule?

What I have: 30 mg · 10 mg/mL. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is what I…

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 cake_collapsed 14k · 3 months ago
11 votes0 answers5k views
If I reconstitute a 40 mg vial with 2 mL of 0.9% sodium chloride, what concentration do I end up with?

The case in front of me: 40 mg · 2 mL · 0.9% sodium chloride. I want the working, not the result — I need to be able to redo it with different numbers. I care about…

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 teodora_ilic 17k · 8 months ago