His 40-milligram dose of Copaxone costs about $75,000 annually, according to the National Multiple Sclerosis Society. In January, Gervich paid $1,800 for the drug and another $900 in February. Discounts that drug manufacturers are required to provide to Part D enrollees also counted toward his out-of-pocket costs. (More on that later.) By March, he hit the $5,100 threshold that pushed him into catastrophic coverage. For the rest of the year, heāll owe $295 a month for this drug, until the cycle starts over again in January.