Breakthrough pain management using fentanyl buccal tablet (FBT) in combination with around-the-clock (ATC) opioids based on the efficacy and safety of FBT, and its relationship with ATC opioids: results from an open-label, multi-center study in Japa

Breakthrough pain management using fentanyl buccal tablet (FBT) in combination with around-the-clock (ATC) opioids based on the efficacy and safety of FBT, and its relationship with ATC opioids: results from an open-label, multi-center study in Japa