Walmart joins CVS and Walgreens in landmark opioid settlement Marketplace: Andrew Pollis, professor of law, weighed in on Walmart’s decision to join major pharmacy chains CVS and Walgreens in a landmark opioid settlement with several U.S. states, cities and Native American tribes. “We have never in the history of our country had a litigation quite this big,” he said. “And so the fact that we have arrived at what appears to be pretty close to the end of it is really quite remarkable.” |