Taraxerol(Alnulin) is an anti-inflammatory and anticancer compound derived from dandelion.Taraxerol reduces acute inflammation and induces apoptosis by inhibiting the NF-κB signaling pathway.

Taraxerol (0-100 μM; 24 or 48 hours) significantly reduced cell viability to 95% (20 μM), 89.8% (40 μM), 82.6% (60 μM), 72.9% (80 μM), and 63.6% (100 μM). The cell viability of this compound in Hela cells at 20 μM and 100 μM concentrations within 48 hours was 90.7% and 53.6%, respectively.[1]
Taraxerol (80 μM; 24 or 48 hours) induces apoptosis and cell death in HeLa cells in a dose-dependent manner. Annexin V/PI double staining method showed that compared with the number of apoptotic cells in the control group at the early (6.5%) and late (0.5%) stages, Taraxerol could significantly induce cell apoptosis (24.2% in the early stage and 16.2% in the late stage).[1]

Taraxerol (5 and 10 mg/kg; i.p.) reduces carrageenan-induced paw edema. The effect of 5mg/kg Taraxerol was significant (p<0.05) only after 4 hours of carrageenan treatment.[2]