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.

Despite high demand for an option like Journavx, doctors fear the drug’s price could be a major hangup for insurers, potentially limiting patients’ ability to access it.

The drug, suzetrigine, will be sold under the brand name Journavx and is the first new class of pain medicine approved in more than 20 years.