"I have patients increasingly coming to me saying, 'I hear it's not as expensive to get the pharmaceutical-grade branded version, can we switch over?'" said Dr. Michael Weintraub, assistant clinical professor of endocrinology at NYU Langone in New York.

CVS Health serves nearly 1.5 million Tennessee residents through 136 pharmacy locations, the company said.

The acquisitions of Cuerevo, LimmaTech Biologics and Vaccine Company will expand Eli Lilly's research and development efforts in infectious diseases.