Teriparatide (PTH 1-34) 1mg Reconstitution: How Much Bacteriostatic Water & How Many Units
A 1mg vial of Teriparatide (PTH 1-34) contains 1,000 mcg. After you add bacteriostatic water, the amount of water decides the concentration — and therefore how many units you draw on a U-100 insulin syringe (1 ml = 100 units). The tables below cover the common water amounts.
Concentration by water amount
| Water added | Concentration | Per 1 unit (0.01 ml) | Per 10 units (0.1 ml) |
|---|---|---|---|
| 1 ml | 1 mg/ml | 10 mcg | 100 mcg |
| 2 ml | 0.5 mg/ml | 5 mcg | 50 mcg |
| 3 ml | 0.33 mg/ml | 3.33 mcg | 33.33 mcg |
How many units to draw
Example doses across the research range listed for Teriparatide (PTH 1-34) (20 mcg–40 mcg). Units are on a U-100 insulin syringe.
| Dose | With 1 ml | With 2 ml | With 3 ml | Doses per vial |
|---|---|---|---|---|
| 20 mcg | 2 units | 4 units | 6 units | 50 |
| 25 mcg | 2.5 units | 5 units | 7.5 units | 40 |
| 30 mcg | 3 units | 6 units | 9 units | 33 |
| 40 mcg | 4 units | 8 units | 12 units | 25 |
How to mix it
- Wipe the vial stoppers with alcohol and let them dry.
- Draw your chosen amount of bacteriostatic water into a sterile syringe.
- Inject the water slowly down the inside wall of the Teriparatide (PTH 1-34) vial — not directly onto the powder.
- Swirl gently until clear. Do not shake.
- Label the vial with the date and concentration, and store it in the refrigerator.
Full walkthrough: Peptide Reconstitution Guide · Injection Guide · Teriparatide (PTH 1-34) research profile
FAQ
How much bacteriostatic water do I add to a 1mg Teriparatide (PTH 1-34) vial?
Common choices are 1 ml, 2 ml, 3 ml. With 2 ml the concentration is 0.5 mg/ml. More water makes each dose a larger, easier-to-measure draw; less water keeps injection volume small. The amount of water does not change the dose — only how many units you draw.
How many units is 20 mcg of Teriparatide (PTH 1-34) from a 1mg vial?
With 2 ml of bacteriostatic water, 20 mcg is 4 units on a U-100 (1 ml) insulin syringe. See the table above for other water amounts.
How many doses are in a 1mg Teriparatide (PTH 1-34) vial?
At 20 mcg per dose, a 1mg vial holds about 50 doses. At higher doses it holds fewer — see the table.