Doksilamin: Perbedaan antara revisi
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===Farmakokinetik===
Ketersediaan hayati doxylamine adalah 24,7% untuk pemberian oral dan 70,8% untuk pemberian intranasal.<ref name=pmid12214324>{{cite journal | vauthors = Pelser A, Müller DG, du Plessis J, du Preez JL, Goosen C | title = Comparative pharmacokinetics of single doses of doxylamine succinate following intranasal, oral and intravenous administration in rats | journal = Biopharmaceutics & Drug Disposition | volume = 23 | issue = 6 | pages = 239–244 | date = September 2002 | pmid = 12214324 | doi = 10.1002/bdd.314 | s2cid = 32126626 }}</ref> Tmax doxylamine adalah 1,5 hingga 2,5 jam.<ref name=KrygerRoth2010>{{cite book| vauthors = Kryger MH, Roth T, Dement WC |title=Principles and Practice of Sleep Medicine E-Book|url=https://books.google.com/books?id=3B52V4PnrVkC&pg=PA925|date=1 November 2010|publisher=Elsevier Health Sciences|isbn=978-1-4377-2773-9|page=925}}</ref> Waktu paruh eliminasinya adalah 10 hingga 12 jam (kisaran 7 hingga 15 jam).<ref name=KrygerRoth2010/><ref name="pmid29671128" /><ref name="pmid27057416">{{cite journal | vauthors = Culpepper L, Wingertzahn MA | title = Over-the-Counter Agents for the Treatment of Occasional Disturbed Sleep or Transient Insomnia: A Systematic Review of Efficacy and Safety | journal = The Primary Care Companion for CNS Disorders | volume = 17 | issue = 6 | date = 2015 | pmid = 27057416 | pmc = 4805417 | doi = 10.4088/PCC.15r01798 }}</ref> Doxylamine dimetabolisme di hati terutama oleh enzim sitokrom P450 CYP2D6, CYP1A2, dan CYP2C9.<ref name=KrygerRoth2010/><ref name="pmid19153052">{{cite journal | vauthors = Krystal AD | title = A compendium of placebo-controlled trials of the risks/benefits of pharmacological treatments for insomnia: the empirical basis for U.S. clinical practice | journal = Sleep Medicine Reviews | volume = 13 | issue = 4 | pages = 265–274 | date = August 2009 | pmid = 19153052 | doi = 10.1016/j.smrv.2008.08.001 }}</ref> Metabolit utamanya adalah N-desmethyldoxylamine, N,N-didesmethyldoxylamine, dan doxylamine N-oksida.<ref>{{cite journal | vauthors = Holder CL, Korfmacher WA, Slikker W, Thompson HC, Gosnell AB | title = Mass spectral characterization of doxylamine and its rhesus monkey urinary metabolites | journal = Biomedical Mass Spectrometry | volume = 12 | issue = 4 | pages = 151–158 | date = April 1985 | pmid = 2861861 | doi = 10.1002/bms.1200120403 | s2cid = 6020605 | url = https://zenodo.org/record/1229133 }}</ref> Doxylamine dihilangkan 60% melalui urin dan 40% melalui feses.<ref name=NZlabel/>
[[File:Doxylamine levels after a single 25 mg oral dose of doxylamine.png|thumb|left|450px|Konsentrasi doxylamine setelah dosis tunggal doksilamin oral 25 mg pada sukarelawan sehat. Sumbu X mewakili waktu dalam jam setelah dosis awal.<ref name="pmid29671128">{{cite journal | vauthors = Allison M, Hale C | title = A Phase I Study of the Pharmacokinetics and Pharmacodynamics of Intranasal Doxylamine in Subjects with Chronic Intermittent Sleep Impairment | journal = Drugs in R&D | volume = 18 | issue = 2 | pages = 129–136 | date = June 2018 | pmid = 29671128 | pmc = 5995792 | doi = 10.1007/s40268-018-0232-1 }}</ref>]]
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