| Inbound Relationships | Type | Active | Source | Characteristic | Refinability | Group | 
| Local anaesthetic popliteal fossa block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Local anaesthetic popliteal fossa block, posterior approach | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Local anaesthetic popliteal fossa block, lateral approach | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Local anaesthetic nerve block in head and neck | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Combined deep and superficial cervical plexus block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Combined deep and superficial cervical plexus block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Intrathecal confirmation technique | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Intrathecal confirmation technique | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into cervical plexus | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into phrenic nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into vagus nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into sciatic nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Epidural injection of anaesthetic substance, therapeutic, lumbar, continuous | Using substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into pudendal nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into lumbar region | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into coeliac plexus with radiologic monitoring | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into sphenopalatine ganglion | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Peripheral block anaesthesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into greater occipital nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Peripheral nerve plexus block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Intravenous anaesthetic NEC | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Epidural injection of anaesthetic substance, diagnostic, caudal, continuous | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Epidural injection of anaesthetic substance, diagnostic, caudal, continuous | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic cervical intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 5 | 
| Local anaesthetic cervical intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic thoracic intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 5 | 
| Local anaesthetic thoracic intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic lumbar intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 4 | 
| Local anaesthetic lumbar intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Spinal anaesthesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Spinal anaesthesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Other specified spinal anaesthetic | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Other specified spinal anaesthetic | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Spinal anaesthetic NOS | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Spinal anaesthetic NOS | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Neurolytic nerve block around spinal cord meninges | Direct substance | True | Anaesthetic | Inferred relationship | Some | 1 | 
| Neurolytic nerve block around spinal cord meninges | Direct substance | True | Anaesthetic | Inferred relationship | Some | 2 | 
| Manipulation of ankle under general anaesthesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Lumbar chemical sympathectomy | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Lumbar sympathetic block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic nerve block in head and neck | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Continuous thoracic epidural analgesia | Using substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Stellate ganglion neurolysis | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Topical local anaesthetic to nose | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Spinal anaesthetic NOS | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic lumbar intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic nerve block in trunk | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic thoracic facet joint nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic nerve block in cervical region | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Moffats anaesthesia of the nose | Direct substance | False | Anaesthetic | Inferred relationship | Some | 5 | 
| Local anaesthetic nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Epidural injection of anaesthetic substance, therapeutic, continuous, cervical | Using substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Cryotherapy to stellate ganglion | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic block of nerve plexus | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Epidural injection of anaesthetic substance, therapeutic, caudal, continuous | Using substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| [X]Parenteral anaesthetics causing adverse effects in therapeutic use | Causative agent | False | Anaesthetic | Inferred relationship | Some |  | 
| Local anaesthetic facet joint nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Coeliac plexus block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Injection of spinal anaesthetic agent for analgesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Epidural injection of anaesthetic substance, diagnostic, caudal, continuous | Direct substance | True | Anaesthetic | Inferred relationship | Some | 2 | 
| Radiofrequency destruction of lumbar sympathetic nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic cervical intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic thoracic intrathecal block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Other specified spinal anaesthetic | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic lumbar facet joint nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic block of laryngeal nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic superior laryngeal nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic recurrent laryngeal nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Injection of local anaesthetic agent into cranial ganglion | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Superficial cervical plexus block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Stellate ganglion block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Splanchnic nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic nerve block in lower limb | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Dorsal root ganglion block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Transsacral local anaesthetic nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic cervical facet joint nerve block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Sympathetic ganglion block | Direct substance | True | Anaesthetic | Inferred relationship | Some | 2 | 
| Combined deep and superficial cervical plexus block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Intrathecal confirmation technique | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Local anaesthetic nerve block in back | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Local anaesthetic nerve block in back | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic thoracic epidural block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic thoracic epidural block | Direct substance | False | Anaesthetic | Inferred relationship | Some | 4 | 
| Spinal anaesthesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Retrobulbar injection of anaesthetic agent | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Injection of anaesthetic agent into spinal accessory nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Cryotherapy to splanchnic nerves | Direct substance | False | Anaesthetic | Inferred relationship | Some | 4 | 
| Cryotherapy to splanchnic sympathetic nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Continuous thoracic epidural analgesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Epidural injection of anaesthetic substance, therapeutic, continuous, cervical | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Paravertebral anaesthesia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 3 | 
| Local anaesthetic nerve block in thorax | Direct substance | False | Anaesthetic | Inferred relationship | Some | 2 | 
| Injection of anaesthetic agent into suprascapular nerve | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for panniculectomy | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for pulmonary resection with thoracoplasty | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for procedure on external ear | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for post-transurethral resection bleeding | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for placement of Harrington rod | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for transabdominal repair of diaphragmatic hernia | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for anorectal endoscopy | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 | 
| Anaesthesia for thoracotomy procedure involving diaphragm | Direct substance | False | Anaesthetic | Inferred relationship | Some | 1 |