Passage of drugs into and out of the central nervous system.
D000818:Animals; D001812:Blood-Brain Barrier; D002490:Central Nervous System / Q000378:metabolism*; D002555:Cerebrospinal Fluid; D004285:Dogs; D066298:In Vitro Techniques; D004364:Pharmaceutical Preparations / Q000378:metabolism*
D004364:Pharmaceutical Preparations