The selective nature of the drug makes it preferable to other stress agents such as adenosine, which are less selective and therefore cause more side-effects. Regadenoson was approved by the United States Food and Drug Administration on April 10, 2008 and is marketed by Astellas Pharma under the tradename Lexiscan.
Human capital flight, sometimes called brain drain, refers to the emigration of intelligent, well-educated individuals for better pay or conditions, causing their places of origin to lose skilled people, or brains..
drain(Noun) A conduit allowing liquid to flow out of an otherwise contained volume. The drain in the kitchen sink is clogged. drain(Noun) Something consuming resources and providing nothing in return. That rental property is a drain on our finances.