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Granisetron is a serotonin 5-HT3 receptor antagonist used as an antiemetic to treat nausea and vomiting following chemotherapy. Its main effect is to reduce the activity of the vagus nerve, which is a nerve that activates the vomiting center in the medulla oblongata. It does not have much effect on vomiting due to motion sickness. This drug does not have any effect on dopamine receptors or muscarinic receptors.
Additional recommended knowledge
Granisetron was developed by chemists working at the British drug company Beecham around 1988 and is expected to go generic in 2007/2008. It is produced by Roche Laboratories under the trade name Kytril. The drug was approved in the United Kingdom in 1991 and in United States in 1994 by the FDA.
Granisetron breaks down quickly, staying in the body for a long time. One dose usually lasts 4 to 9 hours and is usually administered once or twice daily. This drug is removed from the body by the liver and kidneys.
Granisetron is a well-tolerated drug with few side effects. Headache, dizziness, and constipations are the most commonly reported side effects associated with its use. There have been no significant drug interactions reported with this drug's use. It is broken down by the liver's cytochrome P450 system and it has little effect on the metabolism of other drugs broken down by this system.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Granisetron". A list of authors is available in Wikipedia.|