pyrantel

<chemical> A depolarising neuromuscular-blocking agent, that causes persistent nicotinic activation resulting in spastic paralysis of susceptible nematodes. It is a drug of second-choice after benzimidazoles for treatment of ascariasis, hookworm, and pinworm infections, being effective after a single dose. ... Pharmacological action: antinema
Found on http://www.mondofacto.com/facts/dictionary?pyrantel

pyrantel

(pĭ-ranĀ“tәl) a broad-spectrum anthelmintic agent with activity against hookworms, pinworms, and roundworms; used as the pamoate or tartrate salt for infections due to Ascaris lumbricoides or Enterobius vermicularis.
Found on http://www.encyclo.co.uk/local/21001
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