Cartalax 20 mg vial
How much bacteriostatic water to add to a 20 mg vial of Cartalax, the syringe units for each common dose, and how many doses the vial holds.
- Water
- 3 mL
- Strength
- 6.667 mg/mL
- Common dose
- 200 mcg
- Draw
- 3 units0.03 mL
- Doses per vial
- 100
The short answer
Mixed with 3 mL of bacteriostatic water, a 20 mg vial of Cartalax holds 6.667 mg/mL. A 200 mcg dose is then 3 units (0.03 mL) on a U-100 insulin syringe, and the vial holds about 100 doses of that size. Taken 1× per day, it lasts about 14 weeks.
How much water
The water only sets the strength; the dose and the number of doses in the vial stay the same. Draws are on a U-100 insulin syringe, where 1 unit is 0.01 mL.
| Water added | Strength | Per syringe unit | Draw for 200 mcg |
|---|---|---|---|
| 1 mL | 20 mg/mL | 200 mcg | 1 units (0.01 mL) |
| 2 mL | 10 mg/mL | 100 mcg | 2 units (0.02 mL) |
| 3 mL | 6.667 mg/mL | 66.7 mcg | 3 units (0.03 mL) |
Dose chart
Syringe units for each common dose at each water volume. Select a cell to open it in the calculator.
| Dose | Water added | ||
|---|---|---|---|
| 1 mL | 2 mL | 3 mL | |
| 200 mcg | |||
| 300 mcg | |||
| 400 mcg | |||
| 600 mcg | |||
| 750 mcg | |||
| 1,500 mcg | |||
| 2,000 mcg | |||
Draws over 100 units show in mL. Faded values are under 2 units, which is hard to measure. Check that your vial holds the larger volumes.
Where the doses come from
- Community About 200 mcg once daily for 10 days is most cited. A few guides use 1–10 mg a day.
Doses are what labels, trials or community reports reference, not recommendations. Cartalax’s page has the cycle, side effects, cautions and sources.
Mixing and storage
- PrepareLet a refrigerated vial come to room temperature, and wipe both stoppers with an alcohol swab.
- Add 3 mLDraw 3 mL of bacteriostatic water and let it run slowly down the inside wall of the vial.
- Swirl, don’t shakeSwirl gently until the powder dissolves and the liquid is clear.
- Label itWrite the date and the strength, 6.667 mg/mL, on the vial.
Storage: Powder: −20 °C. Mixed: 2–8 °C, use within about 4 weeks.
The reconstitution guide covers each step, and the units page explains syringe markings.
Questions
How much water do I add to a 20 mg vial of Cartalax?
There’s no single right amount: the water only sets the strength. With 3 mL of bacteriostatic water, a 20 mg vial holds 6.667 mg/mL. With 1 mL it’s 20 mg/mL; with 2 mL it’s 10 mg/mL. Less liquid makes each dose a smaller draw; more makes small doses easier to measure.
How many units is 200 mcg of Cartalax?
With 3 mL in a 20 mg vial, 200 mcg is 3 units (0.03 mL) on a U-100 insulin syringe. With 1 mL, 1 units (0.01 mL); with 2 mL, 2 units (0.02 mL).
How many doses are in a 20 mg vial of Cartalax?
About 100 doses of 200 mcg, or 13 of 1,500 mcg or 10 of 2,000 mcg. Taken 1× per day at 200 mcg, it lasts about 14 weeks.
How long does a mixed vial of Cartalax keep?
Powder: −20 °C. Mixed: 2–8 °C, use within about 4 weeks.
Sources
The math on this page uses the doses and storage on Cartalax’s page.