The Parasite Tincture is also known as La Turista because of its usage for parasite and traveler s diarrhea. The herbs in this formula are Anthelmintic (kills parasites), Vermifuge (expels parasites), Antispasmodic, and Astringent. It may be used as an acute remedy for parasites. Herbs in the formula include: Quassia Wood, Fresh Black (Green) Walnut Hulls, Fresh Garrya Herb, Clove Bud, and Bayberry Root Bark. Take 30 drops, 1 3 times per day or as needed in juice or water.