Vitamin K antagonists such as warfarin inhibit VKOR to disrupt the vitamin K cycle, resulting in undercarboxylation of vitamin Kâdependent proteins and lowering the functional levels of vitamin Kâdependent blood coagulation proteins.
Regarding the new wage base, the maximum amount of Social Security tax employees and employers will pay in 2015 is $7,347.00, up $93.00 from 2014. The wage base is the same for self-employed people, but there will be no limit on the Medicare tax of self-employed individuals.
In June 2011, the average Social Security benefit was  $1,180.80 per month. The maximum possible benefit for a worker retiring at age 66 in 2011 is $2,366. But to get this amount, the worker would need to earn the maximum taxable amount, currently $106,800, each year after age 21.