Less than two weeks before the midterm elections, President Donald Trump has announced a plan to lower prices for some prescription drugs.

The president explained it would stop unfair practices that force Americans to pay much more than people in other countries for the same medications.

"We are taking aim at the global freeloading that forces American consumers to subsidize lower prices in foreign countries through higher prices in our country," Trump said in a speech Thursday at the Department of Health and Human Services.

"Same company. Same box. Same pill. Made in the exact same location, and you would go to some countries and it would be 20 percent of the cost of what we pay," said Trump, who predicted the plan will save Americans billions. "We're fixing it."

But consumers take note:

— The plan would not apply to medicines people buy at the pharmacy, just ones administered in a doctor's office, as are many cancer medications and drugs for immune system problems. Physician-administered drugs can be very expensive.

— Don't expect immediate rollbacks. Officials said the complex proposal could take more than a year to put into effect.

Trump has long promised sweeping action to attack drug prices, both as president and when he was running for the White House. He made his latest announcement just ahead of the Nov. 6 elections, with health care high among voters' concerns.

Under the plan, Medicare payment for drugs administered in doctors' offices would gradually shift to a level based on international prices. Prices in other countries are lower because governments directly negotiate with manufacturers.

Trump is linking the prices Americans complain about to one of his longstanding grievances: foreign countries the president says are taking advantage of U.S. research breakthroughs.

The health insurance industry, at odds with drugmakers over prices, commended the administration's action.

Sponsored: Worse than North Korea…?

Matt Eyles, president and CEO of America's Health Insurance Plans, said: "Drug prices are out of control, and we commend the Administration for its continued commitment to reduce drug prices."

As an experiment, the proposal would apply to half the country. Officials said they're seeking input on how to select the areas that will take part in the new pricing system. HHS Secretary Alex Azar said politics would have nothing to do with it.

In advance of Trump's speech, HHS released a report that found U.S. prices for the top drugs administered in doctors' offices are nearly twice as high as in foreign countries. The list includes many cancer drugs. Medicare pays directly for them under its "Part B" coverage for outpatient care.