Since last summer, it’s been difficult to fill an Adderall prescription. The shortage is driving some people to try other ADHD medications—causing shortages of those medications too—while others are sourcing their medication on the “gray market.”  Why is such a common drug nowhere to be found?And why has the FDA been so mum on the subject?  Guests:  Ike Swetlitz, health journalist for Bloomberg News Sheila McClear, writer for Los Angeles magazine If you enjoy this show, please consider signing up for Slate Plus. Slate Plus members get benefits like zero ads on any Slate podcast, bonus episodes of shows like Slow Burn and Amicus—and you’ll be supporting the work we do here on What Next. Sign up now at slate.com/whatnextplus to help support our work. Learn more about your ad choices. Visit megaphone.fm/adchoices