The $134 billion U.S. generic drug industry is diversifying beyond standard generics to boost profits, with companies emphasizing niche products, complex pharmaceuticals, biosimilars, and patient services. Unichem, Amneal, and Somerset Pharma are among those expanding their portfolios and manufacturing capabilities to better respond to market needs and supply challenges. Biosimilars, though costly to develop, offer significant rewards and savings, with companies like Amneal and Dr. Reddy's focusing on this segment.