| Health / Medical Topics |
Oral Route of Administration
Definition 1
The introduction of a substance to the mouth or into the gastrointestinal tract by the way of the mouth, usually for systemic action. It is the most common, convenient, and usually the safest and least expensive route of drug administration, but it uses the most complicated pathway to the tissues and bioavailability varies. The disadvantages of method are hepatic first pass metabolism and enzymatic degradation of the drug within the gastrointestinal tract. This prohibits oral administration of certain classes of drugs especially peptides and proteins. (NCI Thesaurus)
Definition 2
Administration to or by way of the mouth. (Food and Drug Administration/CDISC)
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