Oxycodone is a semisynthetic opioid analgesic prescribed and currently indicated as an immediate-release product for moderate to severe pain and as an extended-release product for chronic moderate to severe pain. Buy Oxycodone 40 mg online primarily binds to and activates the mu-opioid receptor in the central nervous system (CNS). It works by changing the way the brain and nervous system respond to pain. Oxycodone inhibits pain signaling in both the brain and spinal cord. It acts directly on a number of tissues not related to its analgesic effect. These tissues include the respiratory center in the brain stem.