Marketing CVS, Walgreens and other major pharmacies say no to legal weed National chains say they won’t sell marijuana—even where it’s legal—because it’s still prohibited under U.S. federal law. By Kevin Allen@kevin_j_allenMay 16, 2014 SHARE Ragan Insider Premium Content To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.