This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
[{'content': 'Antihelminthic which acts by flaccid paralysis of worms is- \nSelect and explain. \nA. Piperazine, B. Bephenium, C. Pyrantel, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Piperazine Piperazine o It causes hyperpolarization of ascaris muscle by a GABA agonistic action opening Cl-channels --> flaccid paralysis. o Piperazine safe and well tolerated drug, it is also safe in pregnancy. Remember o Drugs causing flaccid paralysis Ivermectin, piperazine. o Drugs causing spastic paralysis --> Pyrantel pamoate, levamisole.", 'role': 'assistant'}]