Table 2.
FIN solubility (S0), slope, correlation coefficient (R), stability constant (Kc), and CE from phase solubility diagrams
System | S0 (mM) | Slope | R | Kc (mM−1) | CE |
---|---|---|---|---|---|
FIN/β-CyD | 0.264 | 0.017 | 0.818 | 0.066 | 0.0173 |
FIN/HP-β-CyD | 0.267 | 0.178 | 0.996 | 0.811 | 0.217 |
FIN/CM-β-CyD | 0.116 | 0.169 | 0.997 | 1.753 | 0.203 |
FIN/SBE-β-CyD | 0.206 | 0.200 | 0.998 | 1.213 | 0.250 |
FIN/DM-β-CyD | 0.248 | 0.322 | 0.998 | 1.915 | 0.475 |
Abbreviations: FIN, finasteride; CE, complexation efficiency; β-CyD, β-cyclodextrin; HP-β-CyD, hydroxypropyl-β-CyD; CM-β-CyD, carboxymethyl-β-cyclodextrin; SBE-β-CyD, sulfobutyl ether-β-cyclodextrin; DM-β-CyD, dimethyl-β-cyclodextrin.