Effectiveness of Fentanyl GPO TTS® in Chronic Pain Patients

Fentanyl Description, Uses, Effects, & Abuse fentanyl Fentanyl is an opioid analgesic used in anesthesia, for breakthrough cancer pain, or round the clock pain management fentanyl About fentanyl Fentanyl is a strong opioid painkiller It's used to treat severe pain, for example during or after an operation or a serious injury, or pain

fentanyl Fentanyl is an opioid analgesic used in anesthesia, for breakthrough cancer pain, or round the clock pain management