I vote YES: If following the definition of parenteral as administration of a drug in a way that is not oral nor into the stomach or intestine, then by the process of exclusion, every other way of administration must be parenteral. So, a drug that is sprayed into the nose to be absorbed through the nose is parenteral, but snorting a pill through the nose and swallowing it at the throat would not be parenteral.
Answered 1/27/2016
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