Drug Coverage and Restrictions for Commercial Insurance
Data as of February 2025. For commercial insurance, we calculated medication coverage by taking the number of drugs covered on each plan as a proportion of those covered on the “best plan” for this insurance type. The “best plan” is defined as the total number of unique medications covered across all commercial plans. We then averaged the coverage proportions across all commercial plans, weighted by enrollment. The share of medications with restrictions reflects the enrollment-weighted average proportion of covered drugs subject to prior authorization, step therapy, and/or quantity limits.
Source: GoodRx analysis of MMIT data
