<p>Orally inhaled levodopa reaches a peak concentration in 0.5 hours with a bioavailability than is 70% that of the immediate release levodopa tablets with a peripheral dopa decarboxylase inhibitor like carbidopa or benserazide<sup class="text-reference-group"><a class="reference-popover-link" data-content="Official drug label" href="#label-reference">Label</a>,<a class="reference-popover-link" data-content="Djamshidian A, Poewe W: Apomorphine and levodopa in Parkinson's disease: Two revolutionary drugs from the 1950's. Parkinsonism Relat Disord. 2016 Dec;33 Suppl 1:S9-S12. doi: 10.1016/j.parkreldis.2016.12.004. Epub 2016 Dec 22. (PubMed ID 28012951)" href="#reference-A177781">1</a></sup>.</p>