Price Gary, Patel Deven A.
University of Tennessee Health Science Center
Mercer University College of Pharmacy
Bioavailability refers to the extent a substance or drug becomes completely available to its intended biological destination(s). More accurately, bioavailability is a measure of the rate and fraction of the initial dose of a drug that successfully reaches either; the site of action or the bodily fluid domain from which the drug's intended targets have unimpeded access.
生物利用度是指一种物质或药物到达其预期生物靶点的完全可用程度。更准确地说,生物利用度是衡量药物初始剂量成功到达以下两者之一的速率和比例:作用部位或药物预期靶点能够无障碍获取药物的体液区域。