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Antiemetic, Antinausea drugs

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show Vomiting center (VC) Chemoreceptor trigger zone (CTZ) Both located in the brain  
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what are three pathways that lead to CTZ   show
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show Bind to & block acetylcholine (ACh) receptors in the inner ear labyrinth Block transmission of nauseating stimuli to CTZ Also block transmission of nauseating stimuli from the reticular formation to the VC scopolamine- used for motion sickness  
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how do antihistamines help as antiemetics   show
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show Antidopaminergic drugs Block dopamine receptors on the CTZ Also used for psychotic disorders, intractable hiccups prochlorperazine (Compazine) promethazine (Phenergan) droperidol (Inapsine): Use is controversial because of associated cardiac dysrhyth  
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how do prokinetic drugs help as antiemetics   show
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how do serotonin blockers help as antiemetics   show
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show Major psychoactive substance in marijuana Inhibitory effects on reticular formation, thalamus, cerebral cortex dronabinol (Marinol) Used for nausea & vomiting associated with chemotherapy, & anorexia associated with weight loss in AIDS patients  
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what herbal products act as antiemetics   show
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all antiemetics can do what   show
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Created by: palmerag
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