The trouble with painkilling drugs is that the more effectively they do their job, the more likely they are to cause addiction. Morphine is the outstanding example, and medical chemists have been trying since the turn of the century to produce an equally potent but nonaddicting painkiller. Time and again they have been disappointed, but last week their hopes rose once more. The U.S. Food and Drug Administration was ready to approve release of a new analgesic that New York's Winthrop Laboratories say is "in the morphine range of potency" but is nonnarcotic—and,...
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