Millions of senior Americans are seeing their drug costs skyrocket after maxing out their early coverage, the Washington Post reported.

The gap in insurance, popularly called the donut hole, is a provision in most of the private plans offered in Medicare's new Part D prescription drug program, the newspaper said.

Under a standard plan this year, Medicare handles 75 percent of drug costs after a deductible until the bill reaches $2,250. Coverage does not kick in again until those costs total $5,100.

The very poor, however, are eligible for special subsidies.

The Congressional Budget Office and the Kaiser Family Foundation projected that about 7 million recipients would be affected by the donut hole this year, the newspaper said.

Copyright 2006 by United Press International