Corydalis Alkaloids are categorized as natural products of the isoquinoline alkaloid type.
Corydalis alkaloids are primarily located within the roots of Corydalis cava and various other Corydalis species.
The representatives of Corydalis alkaloids include d-tetrahydrocoptisine (also known as d- or (+)-stylopine), d-canadine, and hydrohydrastinine.
Corydalis alkaloids exhibit certain narcotic and muscle-paralyzing effects. Historically, the powdered rhizomes of Corydalis alkaloid-containing plants enjoyed popularity as a vermifuge and menstrual stimulant.