Hyland's Leg Cramp Tablets, Natural Relief of Calf, Leg and Foot Cramps, temporarily relieves the symptoms of stiffness, pains in limbs, joints and legs, cramps in calves, feet and legs. Hyland's quick-dissolving tablets melt in your mouth instantly to relieve symptoms of pain and cramps in legs and calves, pain in limbs and joints, and cramps in your feet. No need for water and no stomach discomfort. This gentle formula is made with all natural active ingredients. It contains Cinchona Officinalis, which is made from the bark of the Cinchona tree, commonly called 'Quinine Bark. Homeopathically-prepared Cinchona Officinalis is a safe and natural ingredient to relieve leg cramp pain. There are no known side effects and the medicine will not conflict with any medications you may be taking. Hyland’s has been making natural products and medicines since 1903. This product is made in the United States with natural ingredients. It has no artificial flavors, no dyes, and no parabens. It works to stimulate the body’s own natural healing process. The first step in health care is self-care.