We no longer support this version of your browser.
We recommend that you upgrade to the latest version of Internet Explorer, Firefox, Chrome or Safari to improve your security and experience using this website.
COMING SOON: In the next few weeks, Prescriber's Letter is becoming Prescriber Insights, with all the high-quality content you trust, but delivered in profession-specific editions. As the updates push to your account, you will begin to see references to Prescriber Insights and a prompt to select your profession-specific edition.
Subsys (Fentanyl Sublingual Spray) Black Box Warning