bioavailability(redirected from Oral bioavailability)
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The degree to which or rate at which a drug or other substance is absorbed or becomes available at the site of physiological activity after administration.
bi′o·a·vail′a·ble (-lə-bəl) adj.
(Medicine) the extent to which a drug or other substance is taken up by a specific tissue or organ after administration; the proportion of the dose of a drug that reaches the systemic circulation intact after administration by a route other than intravenous. Also called: systemic availability
bi•o•a•vail•a•bil•i•ty(ˌbaɪ oʊ əˌveɪ ləˈbɪl ɪ ti)
the extent to which a substance can be used by the body.