Washington ? The Senate opened the way Tuesday to let Americans import prescription drugs into the United States from Canada, seeking to ease a regulatory ban on cheaper medicine crossing the border.

The proposal, which was approved 68-32, would create a Canadian loophole on a Food and Drug Administration ban on importing prescription medicine into the United States. It was offered as part of a $31.7 billion Homeland Security Department spending blueprint for the fiscal year that begins Oct. 1.

The department’s Customs and Border Protection bureau began aggressively seizing Tamiflu, Viagra and other incoming prescription medications at borders in November. Prescription drugs – even those manufactured in the United States – generally are sold at cheaper prices in Canada.

“We should demand that (Customs and Border Protection) focus on the true priority that we face on the war on terror,” said Sen. David Vitter, R-La., of efforts to secure U.S. borders. “Stripping small amounts of prescription drugs from the hands of seniors …. that should not be a priority.”

Vitter’s plan, which was embraced by Democrats, specifically would prohibit Customs and Border Protection from stopping people with doctors’ prescriptions for FDA-approved drugs from bringing the medicine into this country from Canada.

But Republican leaders vociferously opposed the plan for fear, they said, the drugs could be unsafe for consumers – or even present a terror risk.