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aprep·i·tant | \ ə-ˈpre-pə-tənt 
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\Medical Definition of aprepitant
: an antiemetic drug C23H21F7N4O3 taken orally to prevent nausea and vomiting occurring as a consequence of cancer chemotherapy or surgery
Note: Aprepitant acts as an antagonist of receptors for substance P. It is often taken in combination with other antiemetic drugs and is marketed under the trademark Emend.
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