bioavailability (redirected from Bioavailiability)

bioavailability /bio·avail·a·bil·i·ty/ (bi″o-ah-vāl″ah-bil´ĭ-te) the degree to which a drug or other substance becomes available to the target tissue after administration.

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bi·o·a·vail·a·bil·i·ty (b--vl-bl-t)

n.

The physiological availability of a given amount of a drug, as distinct from its chemical potency.

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Bioavailability

A measure of the amount of drug that is actually absorbed from a given dose.

Mentioned in: Antiretroviral Drugs

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bioavailability

[-əvā′libil′itē]

Etymology: Gk, bios + ME, availen, to serve

the degree of activity or amount of an administered drug or other substance that becomes available for activity in the target tissue.

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bioavailability [bi″o-ah-vāl″ah-bil´ĭ-te]

the degree to which a drug or other substance becomes available to the target tissue after administration.

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bioavailability (bīˈ·ō··vālˈ··bilˑ·i·tē),

n the amount of or rate at which a substance or drug is accessible to the body.

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bioavailability

the degree to which a drug or other substance becomes available to the target tissue after administration.

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bioavailability

Clinical pharmacology The degree to which a drug is available to a target tissue after administration which, for oral drugs, reflects the rate and extent of GI tract absorption; BA is the in vivo presence of a substance in a form that allows it to be metabolized, serve as a substrate, bind a specific molecule, or participate in biochemical reactions. See Oral bioavailability.