Caffeoylcalleryanin exerted strong 15-LOX inhibitory activity; IC50 values was 1.59 μM.A. pulchra leaves ethanol extract (EEAPL) affords compounds with antiviral activity, mainly against DENV-2. respectively, while Caffeoylcalleryanin was the most effective anti-DENV-2 constituent, with a SI of 20.0.