The U.S. Food and Drug Administration rejected a proposed asthma-allergy medication that would have combined two best-selling drugs, Claritin (left) and Singulair (right), into one tablet by Schering-Plough and Merck. The companies received a "not-approvable" letter from the FDA for the combination product.
Claritin, one of the best-selling drugs ever, is now sold generically, while Singulair is still covered by patents.
FDA rejects Schering-Merck combo allergy drug. The Guardian.
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