Synera

A transdermal analgesic or pain relief patch is a medicated adhesive patch used to relieve minor to severe pain. There are two primary types of analgesic patches: patches containing counterirritants, which are used to treat mild to moderate pain, and patches containing fentanyl, a narcotic used to relieve moderate to severe pain in opioid-tolerant patients. Contents 1 Counterirritant patches 2 Fentanyl patches 3 See also 4 References Counterirritant patches Counterirritant patches cont... [wikipedia]