** Shares of U.S drugmakers fall after President Trump signaled he would make an announcement next week on the cost of medicines

** Shares of Eli Lilly LLY.N and Abbvie ABBV.N fall 3% each, Merck MRK.N down 2.5%, Gilead GILD.O slip 2.4%, Amgen AMGN.O down 2.2%, Pfizer PFE.N fall 1.7%

** The S&P 500 healthcare sector .SPXHC falls 1.5%

** Trump said to reporters gathered at the White House the U.S. was being ripped off on medicine costs when compared to the rest of the world

** He also said that he plans to announce pharmaceutical tariffs over the next two weeks

** Trump's recent comments imply that pharma-specific tariff proposals are coming, but may not be as bad as expected, Jefferies says

(Reporting by Sriparna Roy in Bengaluru)

((Sriparna.Roy@thomsonreuters.com;))