The order is based on a "most favored nation" pricing model, which is similar to a policy Trump pushed in his first administration.

The executive order directs Trump's administration to take actions against "discriminatory" policies in foreign countries that suppress drug prices.

In signing an executive order aimed at reducing U.S. drug prices, President Donald Trump said some prices would be cut in half or more "almost immediately." But the order is light on details of how the plan would be implemented.