A 45-year-old member asked:
Is phenytoin more effective when taken orally or via injection?
1 doctor answer • 2 doctors weighed in
Neurology 52 years experience
Efficiency: Intravenous phenytoin will affect faster than oral due to the need for the latter to be absorbed in the GI tract. Once therapeutic levels are achieved, either orally or intravenously, the effect is equivalent.
1.4k viewsReviewed >2 years ago
Last updated Nov 27, 2017
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