Epidural administration, which involves the injection of pain-relieving medication into the epidural space surrounding the spinal cord, is commonly used during childbirth or surgery. Synonyms for this medical procedure include epidural anesthesia, epidural block, or simply epidural. Another synonym for epidural administration is spinal anesthesia, which is similar but involves the injection of medication directly into the spinal fluid. Other related terms include nerve block, local anesthesia, and regional anesthesia. While epidural administration is generally safe and effective when performed by qualified medical professionals, it may carry some risks and potential side effects, which should be discussed with the healthcare provider prior to the procedure.