Hydrastine pharmacokinetics and metabolism after a single oral dose of goldenseal (Hydrastis canadensis) to humans.
Gupta PK, Barone G, Gurley BJ, Fifer EK, Hendrickson HP. Hydrastine pharmacokinetics and metabolism after a single oral dose of goldenseal (Hydrastis canadensis) to humans. Drug Metab Dispos. 2015 Apr; 43(4):534-52.