intraspinal/intracranial drug administration --keywords

((caudal OR intrathecal OR intra-thecal OR epidural OR spinal OR intraspinal OR intra-spinal OR intracranial OR intra-cranial OR intraventricular OR intra-ventricular OR transforaminal OR trans-foraminal OR neuraxial OR spinocranial OR craniospinal ) AND (inject* OR infus* OR administrat* OR analg* OR anesthesia* OR anesthetic* anaesth* OR chemotherap* )) OR "Injections, Spinal"[mesh]

If only one drug or drug class is of interest, the OR'd names for the drug/s and/or drug class (and all drugs in the class) should replace
inject* OR infus* OR administrat* OR analg* OR anesthesia* OR anesthetic* anaesth* OR chemotherap*