1-O-Acetylbritannilactone is a sesquiterpene isolated from the medicinal plant Inula britannica with anticancer and anti-inflammation acitvity.

Taraxasterol acetate is a natural product isolated and purified from the root of Inula britannica L. with antiinflammatory activity in bino rats against carrageenan, formaldehyde and adjuvant induced inflammations in doses between 10 and 100 mg/kg.

Epoxymicheliolide is a micheliolide derivative.

Britannin, a sesquiterpene lactone, could inhibit proliferation and induces apoptosis through the mitochondrial signaling pathway in human breast cancer cells.