Indian industry and government have also suggested manufacturers are being unfairly attacked and subjected to overly stringent oversight by the Americans. Neither IPCA nor Dr. Reddy’s responded to requests for comment, but Amir Attaran, a health-policy expert at the University of Ottawa who tracks the industry, said the findings are…

According to law, when a new medicine is manufactured and marketed, it is protected under a patent for a specific time period. Once the patent-protected time expires, the other company can manufacture and market the drug until the time it has the same active pharmaceutical ingredients similar to their branded…