By Foo Yun Chee BRUSSELS, June 26 (Reuters) - France-based Cooper Consumer Health on Wednesday secured EU antitrust approval to buy U.S. drugmaker Viatris' European over-the-counter drug business after agreeing to sell its rights and 비아그라약효 interests in an infant laxative medicine and earwax removal product. The companies announced the $3.6 billion deal last...