She hopes the move by Costco will encourage the 500-plus pharmacies that might carry the drug to consider rejecting it as well. 

"This had to be a big decision in this corporate boardroom. And I think we really are seeing a move towards common sense, truth, honesty, and medical integrity among businesses. Americans want to shop their values, and we've seen that across the past couple years, and especially this year. So Costco really is taking a stand with that common sense. They said they see a lack of demand among their members, their shareholders, and their patients, and we're seeing that as a reflection of consumer interest and shareholder preferences," she said.