This formula has been used with varicose veins, curvature of the spine, calcium bone spurs, blood clots, pulled muscles and ligaments, skin eruptions, tremors, and scars of the flesh. Do not remove excess CTR ointment when applying new, just keep adding the ointment until the area is healed. Syrup is taken 1 to 3 teaspoons 2 to 3 times daily. Comfrey root, White Oak bark, Marshmallow root, Mullein leaf, Black Walnut bark, Gravel root, Wormwood, Lobelia herb and seed, Skullcap herb, White Willow bark, Horsetail herb, St. John's wort. The FDA has issued an advisory against internal consumption of comfrey.
Comfrey contains the active constituent pyrrolizidine alkaloids, which can be toxic to the liver.
Side effects include possible obstruction of blood flow to liver, possibly leading to death. Calm For Child. Focus For Child. Booster Silver - Met. This product is not intended to diagnose, cure, treat or prevent any disease.