Due to habitual constpation contaminated food water etc. results and causes Prasites like ascaris Rousnd worm Flat Worm Hook Worm etc.They make colonies in intestine and stool. Due to this Imunity Iron Hunger other important minerals decreases in body giving rise to different pain like digestive pain gastritis Nausea Anorexia memory loss.Anthel Out is benefit is such cases.minimum three months treatment required for effective result