The U.S. Food and Drug Administration approved a new non-opioid pain medication developed by the Massachusetts-based company Vertex Pharmaceuticals on Thursday. The drug, which is called suzetrigine and will be sold under the brand name Journavx, is the first new type of pain medicine approved by the agency in more than 20 years.

The drug, Journavx by Vertex Pharmaceuticals, blocks pain signals to the brain, making it nonaddictive. The Food and Drug Administration approved a new medication Thursday to treat pain from an injury or surgery. It is expensive, with a list price of $15.50 per pill. But unlike opioid pain medicines, it cannot become addictive.

The prescription pills, sold under the brand name Journavx and made by Vertex Pharmaceuticals, are taken twice a day and represent the first new class of pain medications in 20 years—and the first non-opioid painkiller since that class first appeared on the market in the 1980s.