<https://medicareonvideo.com/medicare-catastrophic-drug-coverage-final-phase/#webpage>
<http://schema.org/description>
"Medicare Catastrophic Drug Coverage: The final phase. Catastrophic coverage is Phase 4, the final Medicare coverage phase. In this phase, your share of drug costs drops sharply. In 2018, you will pay around 5% of the retail cost of your covered drugs."
<https://medicareonvideo.com/medicare-catastrophic-drug-coverage-final-phase/>