Erythrina excelsa exhibits estrogenic effects in vivo and in vitro and is cytotoxic on breast and colon cancer cell lines.

Context: Eythrina excelsa Baker (Fabaceae) is a medicinal plant used to treat various ailments including those of the female genital tract.

Objective: The objective of this study is to investigate the estrogenic and cytotoxic effects of the ethanol extract of the stem bark of E. excelsa.