<prompt> Antihelminthic which acts by flaccid paralysis of worms is-PiperazineBepheniumPyrantelNone  <response>: 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. 