Spending on prescription drugs continues to be one of the biggest drivers pushing health care costs upward. Slideshow: The 10 Most Frequently Prescribed Drugs in America Specialty drugs get a lot of attention when it comes to higher costs, although price increases are occurring across the board. Specialty drug prices are projected to increase 18.7 percent next year (after growing 18.9 percent in 2016). Although they comprise less than 1 percent of prescriptions, specialty dru