Pharmaceutical manufacturing

Trader Michael Unkonis, center, works on the floor of the New York Stock Exchange, Tuesday, Jan. 29, 2019. Stocks are opening slightly higher on Wall Street as several big U.S. companies reported solid results for the latest quarter. (AP Photo/Richard Drew)

Sen. Chuck Grassley, R-Iowa, center, chairman of the Senate Finance Committee, is joined at left by Sen. Ron Wyden, D-Ore., the ranking member, at a hearing on the high price of prescription drugs, on Capitol Hill in Washington, Tuesday, Jan. 29, 2019. (AP Photo/J. Scott Applewhite)

FILE- This Dec. 4, 2017, file photo shows a tablet of Pfizer's Viagra, left, and the company's generic version, sildenafil citrate, at Pfizer Inc., headquarters in New York. Pfizer Inc. reports earnings Tuesday, Jan. 29, 2019. (AP Photo/Richard Drew, File)

FILE- In this Jan. 18, 2019, file photo specialist Michael Pistillo works on the floor of the New York Stock Exchange. The U.S. stock market opens at 9:30 a.m. EST on Friday, Jan. 25. (AP Photo/Richard Drew, File)

FILE- In this Jan. 11, 2019, file photo, Specialist John O'Hara, left, works on the floor of the New York Stock Exchange. The U.S. stock market opens at 9:30 a.m. EST on Thursday, Jan. 24. (AP Photo/Richard Drew, File)

FILE - In this Friday, Jan. 18, 2019, file photo, Speaker of the House Nancy Pelosi, D-Calif., takes questions from reporters on Capitol Hill in Washington. Pelosi is laying out her strategy on health care and first up is improvements to “Obamacare” and legislation to lower prescription drug costs. (AP Photo/J. Scott Applewhite, File)

FILE - In this Jan. 4, 2019, file photo Rep. Elijah Cummings, D-Md., speaks at the Capitol in Washington, Friday, Jan. 4, 2019. Leading congressional liberals are unveiling a package of bills that aims to reduce what Americans pay for prescription drugs by linking prices to lower costs in other countries. Vermont Independent Sen. Bernie Sanders and Cummings plan to introduce three bills Thursday, Jan. 10. (AP Photo/J. Scott Applewhite, File)

FILE - In this Jan. 4, 2019, file photo Rep. Elijah Cummings, D-Md., speaks at the Capitol in Washington, Friday, Jan. 4, 2019. Leading congressional liberals are unveiling a package of bills that aims to reduce what Americans pay for prescription drugs by linking prices to lower costs in other countries. Vermont Independent Sen. Bernie Sanders and Cummings plan to introduce three bills Thursday, Jan. 10. (AP Photo/J. Scott Applewhite, File)

FILE- In this July 11, 2018, file photo, Bridgett Snelten holds her Trulicity injection at her home in Sandy, Utah. Drugmaker Eli Lilly has started posting price information online for drugs advertised on TV. On Tuesday, Jan. 8, 2019, the company began running TV ads for Trulicity, a popular diabetes drug, that don’t give the price but direct viewers to the website. (AP Photo/Rick Bowmer, File)

FILE - In this July 10, 2018 file photo, bottles of prescription medicines ride on a conveyor belt at a pharmacy warehouse in Florence, N.J. According to a report released on Tuesday, Jan. 8, 2018, annual spending by the U.S. health industry on ads and promotions has reached $30 billion. That includes advertisements for prescription drugs that were shown 5 million times on TV and elsewhere in 2016. That’s a huge increase in 20 years and just part of broad health industry efforts to promote drugs, devices, lab tests and even new hospitals. (AP Photo/Julio Cortez, File)