This study to aim at determination PTX's content in complex with hydroxypropyl-β-cyclodextrine (NC-10) Methods: HPLC method for determination of PTX in a research product (NC-10) was developed: pentafluorophenyl-propyl L43 column (250 mm x 4 mm, 5 µm), PDA detector (227 nm), gradient mobile phase: water: acetonitrile from 55: 45 to 65: 35 over 20 minutes, flow rate: 1, 2 ml / min, injection volumn: 10 µl, column temprature: 25 oC.