Indicated for Sinuses, Frequent hawking, Thick mucus draining in throat. Hydrastis canadensis is a homeopathic remedy commonly used for discharges from sinuses or other mucus membranes that are thick, yellowish and ropy. May be indicated in sinus problems and other upper respiratory states. This homeopathic remedy is made from the plant commonly known as Goldenseal. Active ingredient: Hydrastis canadensis [HPUS]. Inactive ingredients: Sucrose/lactose pellets.