Stocks are ending lower on Wall Street, led by drops in drugmakers and banks. Mylan slumped 4% Thursday after senators called for an investigation into the company's pricing policies for the EpiPen allergy shot. Banks fell as worries grew about Deutsche Bank, Germany's biggest lender. The bank's stock plunged 7% in heavy trading. ConAgra, which makes Chef Boyardee products, jumped 8% after reporting strong results. The Dow Jones industrial average fell 195 points, or 1%, to 18,143. The Standard & Poor's 500 index fell 20 points, or 0.9%, to 2,151. The Nasdaq composite lost 49 points, or 0.9%, to 5,269. (More Dow Jones stories.)