Plasma concentrations of heroin and morphine-related metabolites after intranasal and intramuscular administration

Gisela Skopp, Beate Ganssmann, Edward J. Cone, Rolf Aderjan

Research output: Contribution to journalArticle

Abstract

The disposition of heroin and its metabolites was investigated in four healthy male volunteers following intranasal administration of 6 and 12 mg heroin hydrochloride. In addition, two doses of 6 mg heroin hydrochloride were injected intramuscularly for comparison of pharmacokinetics parameters. Serum samples were analyzed for heroin, 6-acetylmorphine, and morphine by solid-phase extraction-gas chromatography-mass spectrometry. The concentration of morphine glucuronides was determined by high-performance liquid chromatography based on the native fluorescence of the conjugates. Major findings were rapidly rising and declining terminal phases for heroin and 6-acetylmorphine and slowly declining phases of morphine and metabolites after both routes of administration. The area under the curve values of morphine-3-glucuronide depended on dose but not on route of administration. The apparent terminal half-lives of morphine-3-glucuronide ranged from 2.2 to 5.2 h for intranasally administered heroin and were 3.0 and 1.7 h for the intramuscularly applied drug. A mean morphine-3-glucuronide-heroin:area- under-curve ratio of 93 for the intranasal route as compared with 38 for the intramuscular route demonstrated that circulating amounts of heroin were about half the size after intranasal administration of the same dose.

Original languageEnglish (US)
Pages (from-to)105-114
Number of pages10
JournalJournal of Analytical Toxicology
Volume21
Issue number2
StatePublished - Mar 1997

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Intranasal Administration
Heroin
Metabolites
Morphine
metabolite
Plasmas
plasma
Pharmacokinetics
High performance liquid chromatography
Gas chromatography
half life
Area Under Curve
Mass spectrometry
liquid chromatography
serum
gas chromatography
drug
fluorescence
mass spectrometry
Fluorescence

ASJC Scopus subject areas

  • Analytical Chemistry
  • Toxicology
  • Health, Toxicology and Mutagenesis

Cite this

Plasma concentrations of heroin and morphine-related metabolites after intranasal and intramuscular administration. / Skopp, Gisela; Ganssmann, Beate; Cone, Edward J.; Aderjan, Rolf.

In: Journal of Analytical Toxicology, Vol. 21, No. 2, 03.1997, p. 105-114.

Research output: Contribution to journalArticle

Skopp, Gisela ; Ganssmann, Beate ; Cone, Edward J. ; Aderjan, Rolf. / Plasma concentrations of heroin and morphine-related metabolites after intranasal and intramuscular administration. In: Journal of Analytical Toxicology. 1997 ; Vol. 21, No. 2. pp. 105-114.
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