Propoxyphene and norpropoxyphene: influence of diet and fluid on plasma levels. 1976

P G Welling, and L L Lyons, and F L Tse, and W A Craig

The influence of various test meals and ingested fluid volumes on the bioavailability and pharmacokinetics of propoxyphene and its major metabolite norporpoxyphene has been studied in healthy human subjects. The absorption of drug was delayed by all test meals, but the overall efficiency of absorption was either not affected or was slightly increased. Increased fluid volume intake decreased propoxyphene bioavailability. Plasma levels of metabolite correlated well with levels of unchanged drug, particularly in the first 2 hr after dosing, but were not markedly influenced by treatments.

UI MeSH Term Description Entries
D007408 Intestinal Absorption Uptake of substances through the lining of the INTESTINES. Absorption, Intestinal
D007700 Kinetics The rate dynamics in chemical or physical systems.
D008297 Male Males
D011431 Dextropropoxyphene A narcotic analgesic structurally related to METHADONE. Only the dextro-isomer has an analgesic effect; the levo-isomer appears to exert an antitussive effect. D-Propoxyphene,Darvon,Propoxyphene,Propoxyphene Hydrochloride,Propoxyphene Hydrochloride, (R*,R*)-(+-)-Isomer,Propoxyphene Hydrochloride, (R-(R*,R*))-Isomer,Propoxyphene Hydrochloride, (R-(R*,S*))-Isomer,Propoxyphene Hydrochloride, (S-(R*,R*))-Isomer,Propoxyphene Maleate, (+)-Isomer,Propoxyphene Phosphate, (S-(R*,S*))-Isomer,Propoxyphene Sulfate, (S-(R*,S*))-Isomer,D Propoxyphene,Hydrochloride, Propoxyphene
D004032 Diet Regular course of eating and drinking adopted by a person or animal. Diets
D005260 Female Females
D006207 Half-Life The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity. Halflife,Half Life,Half-Lifes,Halflifes
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D001682 Biological Availability The extent to which the active ingredient of a drug dosage form becomes available at the site of drug action or in a biological medium believed to reflect accessibility to a site of action. Availability Equivalency,Bioavailability,Physiologic Availability,Availability, Biologic,Availability, Biological,Availability, Physiologic,Biologic Availability,Availabilities, Biologic,Availabilities, Biological,Availabilities, Physiologic,Availability Equivalencies,Bioavailabilities,Biologic Availabilities,Biological Availabilities,Equivalencies, Availability,Equivalency, Availability,Physiologic Availabilities

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