The phytochemical screening and protein profiling of Allamanda cathartica was performed. Biochemical analysis revealed that peroxidase (8730 ± 307 units/g), superoxide dismutase (181 ± 3.79 units/g), catalase (529 ± 28.9 units/g), protease (3598 ± 79.8 units/g), total phenolic contents (19,344 ± 657