How much bacteriostatic water for a 5 mg Orexin A vial?

The amount of water does not change how much Orexin A is in the vial; it sets the concentration. With 1 mL a 5 mg vial is 5 mg/mL, with 2 mL it is 2.5 mg/mL and with 3 mL it is 1.667 mg/mL. More water makes each unit weaker, so a given amount takes more units to draw.

How many mcg are in one unit of a 5 mg Orexin A vial?

With 2 mL of water, one unit on a U-100 syringe holds 25 mcg (2,500 mcg per mL divided by 100). The table above gives the figure for other vial sizes and volumes.

Is this a Orexin A dosage calculator?

It converts between amounts, volumes and syringe units for Orexin A; it does not suggest how much to use. The Orexin A guide lists the doses used in published studies, with their sources.

What size are Orexin A vials?

Across 38 listings in our directory, the most common sizes are 5 mg, 50 mg, 10 mg, 20 mg. Sizes and prices by store are on the Orexin A price page.

How many units are in 1 mL on an insulin syringe?

A U-100 insulin syringe holds 100 units per mL, so 1 unit is 0.01 mL.

Tool · Orexin A reconstitution arithmetic

Orexin A dosage calculator

Pick a Orexin A vial size, enter the bacteriostatic water added and, if you want, an amount per draw. The calculator gives the concentration and how many units that is on a U-100 insulin syringe. It does arithmetic only and does not suggest an amount.

U-100 syringes · 100 units = 1 mL · 1 mg = 1,000 mcg

Concentration

2.5 mg/mL

25 mcg per unit on a U-100 syringe · 250 mcg per 0.1 mL

Enter an amount per draw to see how many units it is and how many draws the vial holds.

Not medical advice

This tool converts between amounts, volumes and syringe units. It is not a recommendation to use Orexin A or a guide to how much to use, and it cannot tell you whether a product is what its label says. For the amounts used in research, with sources, see the doses used in published Orexin A studies. Disclaimer

Orexin A vial sizes stores list

From 38 active Orexin A listings of 100 mg or less in our directory. The buttons above use these sizes.

5 mg18 listings
50 mg6 listings
10 mg5 listings
20 mg2 listings
25 mg2 listings
100 mg2 listings

Compare Orexin A prices by supplier

Worked example

A 5 mg Orexin A vial with 2 mL of bacteriostatic water is 2.5 mg/mL (2,500 mcg/mL). One unit on a U-100 syringe is 0.01 mL, so each unit holds 25 mcg. To find how many units an amount is, divide the amount in mcg by 25.

Read more about bacteriostatic water and storing a mixed vial, or the Orexin A guide.

Orexin A concentration by vial size and water added

mcg per unit on a U-100 syringe. Read across for more water, down for a larger vial.

Vial	1 mL water	2 mL water	3 mL water
5 mg	50 mcg/unit · 5 mg/mL	25 mcg/unit · 2.5 mg/mL	16.7 mcg/unit · 1.67 mg/mL
10 mg	100 mcg/unit · 10 mg/mL	50 mcg/unit · 5 mg/mL	33.3 mcg/unit · 3.33 mg/mL
20 mg	200 mcg/unit · 20 mg/mL	100 mcg/unit · 10 mg/mL	66.7 mcg/unit · 6.67 mg/mL
25 mg	250 mcg/unit · 25 mg/mL	125 mcg/unit · 12.5 mg/mL	83.3 mcg/unit · 8.33 mg/mL
50 mg	500 mcg/unit · 50 mg/mL	250 mcg/unit · 25 mg/mL	166.7 mcg/unit · 16.67 mg/mL
100 mg	1,000 mcg/unit · 100 mg/mL	500 mcg/unit · 50 mg/mL	333.3 mcg/unit · 33.33 mg/mL

Questions

How much bacteriostatic water for a 5 mg Orexin A vial?: The amount of water does not change how much Orexin A is in the vial; it sets the concentration. With 1 mL a 5 mg vial is 5 mg/mL, with 2 mL it is 2.5 mg/mL and with 3 mL it is 1.667 mg/mL. More water makes each unit weaker, so a given amount takes more units to draw.
How many mcg are in one unit of a 5 mg Orexin A vial?: With 2 mL of water, one unit on a U-100 syringe holds 25 mcg (2,500 mcg per mL divided by 100). The table above gives the figure for other vial sizes and volumes.
Is this a Orexin A dosage calculator?: It converts between amounts, volumes and syringe units for Orexin A; it does not suggest how much to use. The Orexin A guide lists the doses used in published studies, with their sources.
What size are Orexin A vials?: Across 38 listings in our directory, the most common sizes are 5 mg, 50 mg, 10 mg, 20 mg. Sizes and prices by store are on the Orexin A price page.
How many units are in 1 mL on an insulin syringe?: A U-100 insulin syringe holds 100 units per mL, so 1 unit is 0.01 mL.

Working with a different product? Use the general peptide calculator.