The injection of drugs, most often analgesics, into the spinal canal without puncturing the dura mater.

Synonyms: Injections, Peridural, Peridural Injection, Extradural Injections, Extradural Injection, Epidural Injections, Injections, Extradural, Injection, Extradural, Peridural Injections, Epidural Injection, Injections, Epidural, Injection, Epidural, Injection, Peridural