U.S. Senators Carl Levin and Debbie Stabenow helped the Senate pass a measure letting people buy their prescription drugs from Canada.
The Senate's homeland security spending bill approved last week allows Americans to import prescription drugs from Canada despite a Food and Drug Administration ban on importing prescription medicine into the United States.
U.S. Customs and Border Protection began aggressively enforcing the ban last November by seizing incoming medications at borders.
Prescription drugs are generally sold at cheaper prices in Canada and other countries because of government price controls.
The Senate passed the measure on a 68-to-32 vote.