PTA is an over-the-counter anthelmintic drug, the generic name of which is piperazine phosphate pTA. It has the effect of paralyzing the roundworms so that they cannot attach to the host intestinal wall and are expelled with intestinal peristalsis. It is a non-prescription drug of western medicine nature, with piperazine phosphate as the main ingredient. It is suitable for children over 1 year of age, and is contraindicated in cases of hepatic and renal insufficiency, neurological disorders or a history of epilepsy, and is contraindicated in cases of allergy to this product. Long-term or excessive use should be avoided due to potential neuromuscular toxicity in humans, especially in children. Malnutrition or anemia should be corrected before starting the drug. After taking this drug, avoid eating excessive oily substances to reduce the medicinal properties.