central nervous system drug analgesic agent http://purl.bioontology.org/ontology/SNOMEDCT/373265006 http://purl.obolibrary.org/obo/CHEBI_35480 http://purl.obolibrary.org/obo/NCIT_C241 An agent capable of relieving pain without the loss of consciousness or without producing anaesthesia. In addition, analgesic is a role played by a compound which is exhibited by a capability to cause a reduction of pain symptoms. Compounds that alleviate pain without loss of consciousness. Analgesics act by various mechanisms including binding with opioid receptors and decreasing inflammation. Choice of analgesic may be determined by the type of pain. These compounds include opioid, non-opioid and adjuvant analgesic agents. analgesic analgesic agents