Table 2 Recommended preparation of 1 L CAP solutions at a range of useful (tussigenic) concentrations
From: Standardized method for solubility and storage of capsaicin-based solutions for cough induction
Desired concentration of capsaicin in solution (μM) | Volume of 25 mM capsaicin stock (mL) | Volume of 10% ethanol (mL) |
|---|---|---|
5 | 0.22 | 999.78 |
10 | 0.44 | 999.56 |
20 | 0.88 | 999.12 |
40 | 1.76 | 998.24 |
100 | 4.40 | 995.60 |
150 | 6.60 | 993.40 |
250 | 11.00 | 989.00 |
375 | 16.50 | 983.50 |
500 | 22.00 | 978.00 |