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Par Health launches first generic of Merck's Janumet XR, eroding Merck's market share.

Par Health has launched the first and only FDA-approved generic version of Merck's Janumet XR tablets in the United States. The product, sitagliptin and metformin HCl extended-release tablets, received final approval from the U.S. Food and Drug Administration. According to IQVIA data, Janumet XR had estimated annual U.S. sales of approximately $269.9 million for the 12 months ended May 2026. Jake Longenecker, Executive Vice President and Chief Commercial Officer of Generics at Par Health, said the first-to-market generic helps expand access to more affordable treatment options.
Merck & Company IncPar Health launches first generic of Merck's Janumet XR, eroding Merck's market share.
Merck KGaAPar Health launches first generic of Janumet XR, capturing $269.9M market.