The antiviral activity on Hantavirus Andes variety of resinous exudate from Heliotropim filifolium and its pure compounds was studied. From filifolinol 2, the main compound of the resins, filifolinoic acid 1 was obtained. The resin was the most active. Furthermore, we observed cytostatic effect and apoptosis on Vero E6 cells with 3-O-methylgalangine 5