Substance P Antagonists Dosing Calculator
Vial size, bacteriostatic water, and dose — converted to insulin-syringe units, pre-loaded with Substance P Antagonists's documented doses.
Typical dose: 150 mg · single dose, 30 min before chemotherapy on day 1 · intravenous
Substance P Antagonists documented dose levels
| Phase | Dose | Frequency | Route |
|---|---|---|---|
| One dose per chemotherapy cycle | 150 mg (fosaprepitant) | Single dose, 30 min before chemotherapy on day 1 | Intravenous |
| 3-day course per chemotherapy cycle | 125 mg on day 1, then 80 mg on days 2-3 (aprepitant) | Once daily | Oral |
Reconstitution quick reference
A 5 mg vial at a 150,000 mcg dose of Substance P Antagonists, by how much bacteriostatic water you add:
| Bacteriostatic water | Concentration | U-100 syringe units per dose |
|---|---|---|
| 1 mL | 5 mg/mL | 3000 units |
| 2 mL | 2.5 mg/mL | 6000 units |
| 3 mL | 1.667 mg/mL | 9000 units |
Different vial size or dose? The calculator above handles any combination.
Substance P Antagonists dosing questions
What is a typical Substance P Antagonists dose?
150 mg · single dose, 30 min before chemotherapy on day 1 · intravenous
How many insulin-syringe units is a Substance P Antagonists dose?
With a 5 mg vial reconstituted with 2 mL of bacteriostatic water, a 150,000 mcg dose measures 6000 units on a U-100 insulin syringe. The calculator above recomputes this for your own vial size, water volume, and dose.
How often is Substance P Antagonists taken?
Single dose, 30 min before chemotherapy on day 1
Educational information only — not medical advice. Always consult a qualified healthcare provider.