In the first 10 days of July, at least 10 drugmakers and biotechnology companies raised prices on at least 20 brand-name medicines, a review of pricing data from Rx Savings Solutions and Bloomberg Intelligence shows. The increases, for medications for cancer, diabetes, multiple sclerosis, and liver disease, were generally each less than 10 percent. But the price of one little-prescribed sleep aid was raised by more than 700 percent. (Robert Langreth and Cynthia Koons, Bloomberg News)