Definitions for ondansetron

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Wiktionary

  1. ondansetron(Noun)

    A serotonin 5-HT3 receptor antagonist used mainly as an antiemetic to treat nausea and vomiting following chemotherapy.

Freebase

  1. Ondansetron

    Ondansetron is a serotonin 5-HT3 receptor antagonist used mainly as an antiemetic, often following chemotherapy. It affects both peripheral and central nerves. Ondansetron reduces the activity of the vagus nerve, which deactivates the vomiting center in the medulla oblongata, and also blocks serotonin receptors in the chemoreceptor trigger zone. It has little effect on vomiting caused by motion sickness, and does not have any effect on dopamine receptors or muscarinic receptors.

U.S. National Library of Medicine

  1. Ondansetron

    A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.

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"ondansetron." Definitions.net. STANDS4 LLC, 2014. Web. 21 Apr. 2014. <http://www.definitions.net/definition/ondansetron>.

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