Corydalis Alkaloids are categorized as natural products of the isoquinoline alkaloid type.
[1] Corydalis alkaloids are primarily located within the roots of Corydalis cava and various other Corydalis species.
[1] The representatives of Corydalis alkaloids include d-tetrahydrocoptisine (also known as d- or (+)-stylopine), d-canadine, and hydrohydrastinine.
[2][3] 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.