Where is the better Zafirlukast

Where is the better Zafirlukast? A lot of people don't know this stuff, and here's the introduction to it:

Zulusi is a white solid with a melting point of 139. Solubility is soluble in methanol, soluble in tetrahydrofuran, acetone, and dimethyl sulfoxide, which are almost insoluble in water. Clinically, zruoster is an antagonist of leukotriene receptor, which is the prevention and long-term treatment of asthma.