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dosing-math

Page 30 of 32 · 764 questions tagged dosing-math.

764 questions · sorted by votes · page 30 of 32

5 votes3 answers8.2k views
Is 2 mg/mL a sensible working concentration for ecnoglutide, or should I go lower?

The particulars: 2 mg/mL · ecnoglutide. I am trying to choose between two options that are usually discussed as though only one exists. I am not optimising for price,…

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
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 meniscus_film 32k · 8 months ago
5 votes0 answers8.2k views
Does splitting a 1 mg weekly dose of a GLP-1 receptor agonist across two administrations change anything?

What I am working with: 1 mg · a GLP-1 receptor agonist. I keep seeing this stated as a fact with no explanation attached, and unexplained facts make me suspicious.…

split-dosing
split-dosing

Dividing a weekly dose across more than one administration. Questions here concern the pharmacokinetic rationale, whether the peak-to-trough ratio…

44 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
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

132 questions
asked by ivo_paunovic 16k · 2.0 years ago
5 votes5 answers7.9k views
Is 5 mg in 0.5 mL of bacteriostatic water a sensible presentation for tirzepatide?

Stated plainly: 5 mg · 0.5 mL · bacteriostatic water · tirzepatide. 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
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 syringe_ninety 12k · 2.0 years ago
5 votes 5 answers6.1k views
Is 5 mg in 1 mL of bacteriostatic water a sensible presentation for tirzepatide?

Stated plainly: 5 mg · 1 mL · bacteriostatic water · tirzepatide. 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
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 low_dead_space 37k · 17 months ago
5 votes5 answers5.6k views
If I reconstitute a 5 mg vial with 5 mL of bacteriostatic water, what concentration do I end up with?

Setup, so nobody has to ask: 5 mg · 5 mL · bacteriostatic water. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the…

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 helena_vidmar 8.5k · 15 months ago
5 votes4 answers4.3k views
Does splitting a 15 mg weekly dose of dulaglutide across two administrations change anything?

What I have: 15 mg · dulaglutide. I can predict the outcome but I cannot explain it, which means I will get the next case wrong. I would like to know how confident…

split-dosing
split-dosing

Dividing a weekly dose across more than one administration. Questions here concern the pharmacokinetic rationale, whether the peak-to-trough ratio…

44 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
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

132 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 samir_bennani 15k · 19 days ago
5 votes 5 answers3.9k views
What does SURMOUNT-3 report at the 10 mg dose level?

What I have: SURMOUNT-3 · 10 mg. I can parse the result. I am less sure what it licenses me to conclude. I have deliberately not looked at anyone else’s…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 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
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by cold_lane 10k · 27 days ago
5 votes5 answers3.6k views
If an orforglipron dose is missed by fourteen days, does the ladder reset?

Concretely: orforglipron · fourteen days. This is a procedural question rather than a theoretical one, and I would like the procedure rather than the theory. What I…

missed-dose
missed-dose

What the label instructions for a missed weekly dose are, why they differ between agents, and what the pharmacokinetics say about drift in an…

41 questions
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 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 greta_holzmann 23k · 4 months ago
5 votes3 answers2.9k views
How do I compute the +3 charge state m/z for a peptide of 4207.2 Da?

Setup, so nobody has to ask: +3 · 4207.2 Da. The units are where I keep going wrong, so please be explicit about them. I have sanity-checked the order of magnitude…

mass-spec
mass-spec

Mass spectrometry for identity confirmation: electrospray ionisation, multiple charge states, monoisotopic versus average mass, deconvolution, and…

52 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
purity
purity

Purity as chromatographic area per cent - the fraction of detected material that is your target peak. It says nothing about how much material is…

833 questions
asked by pierce_count 24k · 6 months ago
5 votes5 answers2.8k views
How many units on a 0.5 mL insulin syringe is a 2 mg dose at 10 mg/mL?

What I am working with: a 0.5 mL insulin syringe · 2 mg · 10 mg/mL. I have worked this out and I would like someone to find the error, because I suspect there is one.…

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
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
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
asked by wren_calloway 23k · 5 months ago
5 votes0 answers1.9k views
How do I compute the +4 charge state m/z for a peptide of 4113.6 Da?

The particulars: +4 · 4113.6 Da. I would like the arithmetic checked rather than the conclusion asserted. I have deliberately not used an online calculator because I…

mass-spec
mass-spec

Mass spectrometry for identity confirmation: electrospray ionisation, multiple charge states, monoisotopic versus average mass, deconvolution, and…

52 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
purity
purity

Purity as chromatographic area per cent - the fraction of detected material that is your target peak. It says nothing about how much material is…

833 questions
asked by jonas_ekstrom 12k · 2 months ago
5 votes0 answers1.1k views
How many units on a U-100 insulin syringe is a 2 mg dose at 3.33 mg/mL?

Numbers first: a U-100 insulin syringe · 2 mg · 3.33 mg/mL. This should be a straightforward calculation and I keep getting two different answers. The numbers are…

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
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
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
asked by forty_units 16k · 43 days ago
4 votes 5 answers18k views
What is the arithmetic to convert 8 mg in 3 mL into units on a U-100 scale?

Numbers first: 8 mg · 3 mL. This should be a straightforward calculation and I keep getting two different answers. The numbers are arbitrary; the method is what I am…

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
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
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
asked by swab_stopper 8.8k · 22 months ago
4 votes 5 answers18k views
How do I get 10 units out of a vial reconstituted to 6.67 mg/mL without guessing?

Numbers first: 10 units · 6.67 mg/mL. I can find plenty of assertions about this and almost no reasoning, which is usually a sign that nobody has checked. Assume no…

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 drawn_and_capped 12k · 2.3 years ago
4 votes 4 answers18k views
How many units on a 1 mL luer-lock syringe is a 5 mg dose at 5 mg/mL?

The specifics, since they change the answer: a 1 mL luer-lock syringe · 5 mg · 5 mg/mL. I would like the arithmetic checked rather than the conclusion asserted. 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
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
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
asked by kofi_mensah 18k · 22 months ago
4 votes5 answers15k views
How do I get 5 units out of a vial reconstituted to 2.5 mg/mL without guessing?

The particulars: 5 units · 2.5 mg/mL. I have read the obvious sources and they disagree with each other, so I would rather ask people who have actually done this. I…

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 shear_at_the_front 17k · 23 months ago
4 votes 5 answers15k views
What does STEP 3 report at the 2 mg dose level?

Setup, so nobody has to ask: STEP 3 · 2 mg. I would like help reading this properly rather than being told what conclusion to reach. I have the full report including…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 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
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by yuki_morishita 10k · 13 months ago
4 votes5 answers10k views
Can I reconstitute tirzepatide at 1 mg/mL and still measure a small dose accurately?

The particulars: tirzepatide · 1 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
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 bridget_nyathi 12k · 20 months ago
4 votes 5 answers7.1k views
What does TRIUMPH-1 report at the 8 mg dose level?

For reference: TRIUMPH-1 · 8 mg. I want to understand what this actually establishes, as opposed to what it is being used to imply. My concern is that I am being…

clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 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
titration
titration

Stepwise dose increases over weeks, why the label schedules exist at all, and what tolerability-driven deviation from a schedule looks like in…

456 questions
asked by fiadh_cronin 58k · 21 months ago
4 votes 5 answers6.3k views
How many units on a 1 mL luer-lock syringe is a 2.5 mg dose at 8 mg/mL?

What I have: a 1 mL luer-lock syringe · 2.5 mg · 8 mg/mL. I can do the algebra. I am not confident about the conversion factors. If there is a standard way to lay…

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
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
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
asked by Dr_Jonas_Halvorsen 28k · 20 months ago
4 votes5 answers6.1k views
How do I convert the STEP 1 hazard ratio into an absolute risk reduction?

My laboratory results are from the same laboratory each time, drawn fasting, which I gather matters. Please show the division. I want to check my own against yours. I…

cardiovascular
cardiovascular

Cardiovascular outcomes: the SELECT major-adverse-event result, SOUL, SUSTAIN 6 and REWIND, how to convert a hazard ratio into an absolute risk…

68 questions
clinical-trials
clinical-trials

Reading the primary literature properly: estimands, intention-to-treat versus per-protocol, confidence intervals, absolute versus relative…

745 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 jana_horakova 10k · 9 months ago
4 votes0 answers4.2k views
How many units on a 0.5 mL insulin syringe is a 2 mg dose at 6.67 mg/mL?

Concretely: a 0.5 mL insulin syringe · 2 mg · 6.67 mg/mL. Please show the division. I want to check my own against yours. I would like the general form as well as 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
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
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
asked by nadia_kowalczyk 20k · 14 months ago
4 votes4 answers4k views
Does splitting a 5 mg weekly dose of tirzepatide across two administrations change anything?

Conditions: 5 mg · tirzepatide. This is one of those things that everyone repeats and nobody derives. This matters practically, not just academically, because it…

split-dosing
split-dosing

Dividing a weekly dose across more than one administration. Questions here concern the pharmacokinetic rationale, whether the peak-to-trough ratio…

44 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
glp1-mechanism
glp1-mechanism

Receptor-level pharmacology: GLP-1R as a class B GPCR, cAMP and PKA signalling, biased agonism, internalisation and resensitisation, and the…

132 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 Dr_Signe_Baldursdottir 29k · 14 months ago
4 votes0 answers2.8k views
Can I reconstitute tirzepatide at 10 mg/mL and still measure a small dose accurately?

The specifics, since they change the answer: tirzepatide · 10 mg/mL. I would like to define my thresholds before I have a result, for obvious reasons. I want a 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
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 hana_petrikova 10k · 2.2 years ago