<i>S</i>-Petasin, the Main Sesquiterpene of <i>Petasites formosanus</i>, Inhibits Phosphodiesterase Activity and Suppresses Ovalbumin-Induced Airway Hyperresponsiveness

<table>Chemical structure of <i>S</i>-petasin (mol. wt., 334), isolated from <i>Petasites formosanus</i> Kitamura.</table>

Evidence-Based Complementary and Alternative Medicine

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Figure 1

Figure 1: <i>S</i>-Petasin, the Main Sesquiterpene of <i>Petasites formosanus</i>, Inhibits Phosphodiesterase Activity and Suppresses Ovalbumin-Induced Airway Hyperresponsiveness 

Figure 1 | S-Petasin, the Main Sesquiterpene of Petasites formosanus, Inhibits Phosphodiesterase Activity and Suppresses Ovalbumin-Induced Airway Hyperresponsiveness 