(Featured image of medications courtesy Unsplash.com) It happens every time. Dawn goes to the pharmacy to pick up prescriptions, and the prices are different. Higher. She could just accept the changes, pay with a gulp, and hurry out of the store. But instead, she sets her purse down on the counter and settles in for some negotiation. You could call her a prescription-buying veteran. Because she must take pituitary hormone replacement medications every day, Dawn's been filling …