In his first major action on health care costs this term, President Donald Trump issued a multi-part executive order on Tuesday aimed at lowering drug prices and reducing costs for Medicare. The move comes as his administration seeks to impose tariffs on pharmaceutical imports that many experts have said could lead to drug shortages and price hikes.

The order calls for lowering the price of insulin for low-income patients or people who are uninsured, as well as lowering the price of injectable epinephrine.

US President Donald Trump signed an executive order Tuesday aiming to lower crippling drug prices by giving states more leeway to bargain-hunt abroad and improving the process for price negotiations.Americans face the highest prescription drug prices in the world,